proto.m4
上传用户:xu_441
上传日期:2007-01-04
资源大小:1640k
文件大小:66k
- divert(-1)
- #
- # Copyright (c) 1998, 1999 Sendmail, Inc. and its suppliers.
- # All rights reserved.
- # Copyright (c) 1983, 1995 Eric P. Allman. All rights reserved.
- # Copyright (c) 1988, 1993
- # The Regents of the University of California. All rights reserved.
- #
- # By using this file, you agree to the terms and conditions set
- # forth in the LICENSE file which can be found at the top level of
- # the sendmail distribution.
- #
- #
- divert(0)
- VERSIONID(`$Id: proto.m4,v 8.404 1999/12/09 19:06:12 gshapiro Exp $')
- MAILER(local)dnl
- define(`CF_LEVEL', `9')dnl
- # level CF_LEVEL config file format
- V`'CF_LEVEL/ifdef(`VENDOR_NAME', `VENDOR_NAME', `Berkeley')
- divert(-1)
- # do some sanity checking
- ifdef(`__OSTYPE__',,
- `errprint(`*** ERROR: No system type defined (use OSTYPE macro)
- ')')
- # pick our default mailers
- ifdef(`confSMTP_MAILER',, `define(`confSMTP_MAILER', `esmtp')')
- ifdef(`confLOCAL_MAILER',, `define(`confLOCAL_MAILER', `local')')
- ifdef(`confRELAY_MAILER',,
- `define(`confRELAY_MAILER',
- `ifdef(`_MAILER_smtp_', `relay',
- `ifdef(`_MAILER_uucp', `uucp-new', `unknown')')')')
- ifdef(`confUUCP_MAILER',, `define(`confUUCP_MAILER', `uucp-old')')
- define(`_SMTP_', `confSMTP_MAILER')dnl for readability only
- define(`_LOCAL_', `confLOCAL_MAILER')dnl for readability only
- define(`_RELAY_', `confRELAY_MAILER')dnl for readability only
- define(`_UUCP_', `confUUCP_MAILER')dnl for readability only
- # back compatibility with old config files
- ifdef(`confDEF_GROUP_ID',
- `errprint(`*** confDEF_GROUP_ID is obsolete.
- Use confDEF_USER_ID with a colon in the value instead.
- ')')
- ifdef(`confREAD_TIMEOUT',
- `errprint(`*** confREAD_TIMEOUT is obsolete.
- Use individual confTO_<timeout> parameters instead.
- ')')
- ifdef(`confMESSAGE_TIMEOUT',
- `define(`_ARG_', index(confMESSAGE_TIMEOUT, /))
- ifelse(_ARG_, -1,
- `define(`confTO_QUEUERETURN', confMESSAGE_TIMEOUT)',
- `define(`confTO_QUEUERETURN',
- substr(confMESSAGE_TIMEOUT, 0, _ARG_))
- define(`confTO_QUEUEWARN',
- substr(confMESSAGE_TIMEOUT, eval(_ARG_+1)))')')
- ifdef(`confMIN_FREE_BLOCKS', `ifelse(index(confMIN_FREE_BLOCKS, /), -1,,
- `errprint(`*** compound confMIN_FREE_BLOCKS is obsolete.
- Use confMAX_MESSAGE_SIZE for the second part of the value.
- ')')')
- # Sanity check on ldap_routing feature
- # If the user doesn't specify a new map, they better have given as a
- # default LDAP specification which has the LDAP base (and most likely the host)
- ifdef(`confLDAP_DEFAULT_SPEC',, `ifdef(`_LDAP_ROUTING_WARN_', `errprint(`
- WARNING: Using default FEATURE(ldap_routing) map definition(s)
- without setting confLDAP_DEFAULT_SPEC option.
- ')')')dnl
- # clean option definitions below....
- define(`_OPTION', `ifdef(`$2', `O $1`'ifelse(defn(`$2'), `',, `=$2')', `#O $1`'ifelse(`$3', `',,`=$3')')')dnl
- dnl required to "rename" the check_* rulesets...
- define(`_U_',ifdef(`_DELAY_CHECKS_',`',`_'))
- divert(0)dnl
- # override file safeties - setting this option compromises system security,
- # addressing the actual file configuration problem is preferred
- # need to set this before any file actions are encountered in the cf file
- _OPTION(DontBlameSendmail, `confDONT_BLAME_SENDMAIL', `safe')
- # default LDAP map specification
- # need to set this now before any LDAP maps are defined
- _OPTION(LDAPDefaultSpec, `confLDAP_DEFAULT_SPEC', `-h localhost')
- ##################
- # local info #
- ##################
- Cwlocalhost
- ifdef(`USE_CW_FILE',
- `# file containing names of hosts for which we receive email
- Fw`'confCW_FILE',
- `dnl')
- # my official domain name
- # ... `define' this only if sendmail cannot automatically determine your domain
- ifdef(`confDOMAIN_NAME', `Dj`'confDOMAIN_NAME', `#Dj$w.Foo.COM')
- CP.
- ifdef(`UUCP_RELAY',
- `# UUCP relay host
- DY`'UUCP_RELAY
- CPUUCP
- ')dnl
- ifdef(`BITNET_RELAY',
- `# BITNET relay host
- DB`'BITNET_RELAY
- CPBITNET
- ')dnl
- ifdef(`DECNET_RELAY',
- `define(`_USE_DECNET_SYNTAX_', 1)dnl
- # DECnet relay host
- DC`'DECNET_RELAY
- CPDECNET
- ')dnl
- ifdef(`FAX_RELAY',
- `# FAX relay host
- DF`'FAX_RELAY
- CPFAX
- ')dnl
- # "Smart" relay host (may be null)
- DS`'ifdef(`SMART_HOST', SMART_HOST)
- ifdef(`LUSER_RELAY', `dnl
- # place to which unknown users should be forwarded
- Kuser user -m -a<>
- DL`'LUSER_RELAY',
- `dnl')
- # operators that cannot be in local usernames (i.e., network indicators)
- CO @ % ifdef(`_NO_UUCP_', `', `!')
- # a class with just dot (for identifying canonical names)
- C..
- # a class with just a left bracket (for identifying domain literals)
- C[[
- ifdef(`_ACCESS_TABLE_', `dnl
- # access_db acceptance class
- C{Accept}OK RELAY
- ifdef(`_DELAY_CHECKS_',`dnl
- ifdef(`_BLACKLIST_RCPT_',`dnl
- # possible access_db RHS for spam friends/haters
- C{SpamTag}SPAMFRIEND SPAMHATER')')',
- `dnl')
- ifdef(`_ACCEPT_UNRESOLVABLE_DOMAINS_',`dnl',`dnl
- # Resolve map (to check if a host exists in check_mail)
- Kresolve host -a<OK> -T<TEMP>')
- ifdef(`confCR_FILE', `dnl
- # Hosts that will permit relaying ($=R)
- FR`'confCR_FILE',
- `dnl')
- # who I send unqualified names to (null means deliver locally)
- DR`'ifdef(`LOCAL_RELAY', LOCAL_RELAY)
- # who gets all local email traffic ($R has precedence for unqualified names)
- DH`'ifdef(`MAIL_HUB', MAIL_HUB)
- # dequoting map
- Kdequote dequote
- divert(0)dnl # end of nullclient diversion
- # class E: names that should be exposed as from this host, even if we masquerade
- # class L: names that should be delivered locally, even if we have a relay
- # class M: domains that should be converted to $M
- # class N: domains that should not be converted to $M
- #CL root
- undivert(5)dnl
- ifdef(`_VIRTHOSTS_', `CR$={VirtHost}', `dnl')
- # who I masquerade as (null for no masquerading) (see also $=M)
- DM`'ifdef(`MASQUERADE_NAME', MASQUERADE_NAME)
- # my name for error messages
- ifdef(`confMAILER_NAME', `Dn`'confMAILER_NAME', `#DnMAILER-DAEMON')
- undivert(6)dnl LOCAL_CONFIG
- include(_CF_DIR_`m4/version.m4')
- ###############
- # Options #
- ###############
- # strip message body to 7 bits on input?
- _OPTION(SevenBitInput, `confSEVEN_BIT_INPUT', `False')
- # 8-bit data handling
- _OPTION(EightBitMode, `confEIGHT_BIT_HANDLING', `adaptive')
- # wait for alias file rebuild (default units: minutes)
- _OPTION(AliasWait, `confALIAS_WAIT', `5m')
- # location of alias file
- _OPTION(AliasFile, `ALIAS_FILE', `MAIL_SETTINGS_DIR`'aliases')
- # minimum number of free blocks on filesystem
- _OPTION(MinFreeBlocks, `confMIN_FREE_BLOCKS', `100')
- # maximum message size
- _OPTION(MaxMessageSize, `confMAX_MESSAGE_SIZE', `1000000')
- # substitution for space (blank) characters
- _OPTION(BlankSub, `confBLANK_SUB', `_')
- # avoid connecting to "expensive" mailers on initial submission?
- _OPTION(HoldExpensive, `confCON_EXPENSIVE', `False')
- # checkpoint queue runs after every N successful deliveries
- _OPTION(CheckpointInterval, `confCHECKPOINT_INTERVAL', `10')
- # default delivery mode
- _OPTION(DeliveryMode, `confDELIVERY_MODE', `background')
- # automatically rebuild the alias database?
- # NOTE: There is a potential for a denial of service attack if this is set.
- # This option is deprecated and will be removed from a future version.
- _OPTION(AutoRebuildAliases, `confAUTO_REBUILD', `False')
- # error message header/file
- _OPTION(ErrorHeader, `confERROR_MESSAGE', `MAIL_SETTINGS_DIR`'error-header')
- # error mode
- _OPTION(ErrorMode, `confERROR_MODE', `print')
- # save Unix-style "From_" lines at top of header?
- _OPTION(SaveFromLine, `confSAVE_FROM_LINES', `False')
- # temporary file mode
- _OPTION(TempFileMode, `confTEMP_FILE_MODE', `0600')
- # match recipients against GECOS field?
- _OPTION(MatchGECOS, `confMATCH_GECOS', `False')
- # maximum hop count
- _OPTION(MaxHopCount, `confMAX_HOP', `17')
- # location of help file
- O HelpFile=ifdef(`HELP_FILE', HELP_FILE, `MAIL_SETTINGS_DIR`'helpfile')
- # ignore dots as terminators in incoming messages?
- _OPTION(IgnoreDots, `confIGNORE_DOTS', `False')
- # name resolver options
- _OPTION(ResolverOptions, `confBIND_OPTS', `+AAONLY')
- # deliver MIME-encapsulated error messages?
- _OPTION(SendMimeErrors, `confMIME_FORMAT_ERRORS', `True')
- # Forward file search path
- _OPTION(ForwardPath, `confFORWARD_PATH', `/var/forward/$u:$z/.forward.$w:$z/.forward')
- # open connection cache size
- _OPTION(ConnectionCacheSize, `confMCI_CACHE_SIZE', `2')
- # open connection cache timeout
- _OPTION(ConnectionCacheTimeout, `confMCI_CACHE_TIMEOUT', `5m')
- # persistent host status directory
- _OPTION(HostStatusDirectory, `confHOST_STATUS_DIRECTORY', `.hoststat')
- # single thread deliveries (requires HostStatusDirectory)?
- _OPTION(SingleThreadDelivery, `confSINGLE_THREAD_DELIVERY', `False')
- # use Errors-To: header?
- _OPTION(UseErrorsTo, `confUSE_ERRORS_TO', `False')
- # log level
- _OPTION(LogLevel, `confLOG_LEVEL', `10')
- # send to me too, even in an alias expansion?
- _OPTION(MeToo, `confME_TOO', `True')
- # verify RHS in newaliases?
- _OPTION(CheckAliases, `confCHECK_ALIASES', `False')
- # default messages to old style headers if no special punctuation?
- _OPTION(OldStyleHeaders, `confOLD_STYLE_HEADERS', `False')
- # SMTP daemon options
- ifelse(defn(`confDAEMON_OPTIONS'), `', `dnl',
- `errprint(WARNING: `confDAEMON_OPTIONS' is no longer valid. See cf/README for more information.
- )'dnl
- `DAEMON_OPTIONS(`confDAEMON_OPTIONS')')
- ifelse(defn(`_DPO_'), `', `O DaemonPortOptions=Name=MTA', `_DPO_')
- ifdef(`_NO_MSA_', `dnl', `O DaemonPortOptions=Port=587, Name=MSA, M=E')
- # SMTP client options
- _OPTION(ClientPortOptions, `confCLIENT_OPTIONS', `Address=0.0.0.0')
- # privacy flags
- _OPTION(PrivacyOptions, `confPRIVACY_FLAGS', `authwarnings')
- # who (if anyone) should get extra copies of error messages
- _OPTION(PostmasterCopy, `confCOPY_ERRORS_TO', `Postmaster')
- # slope of queue-only function
- _OPTION(QueueFactor, `confQUEUE_FACTOR', `600000')
- # queue directory
- O QueueDirectory=ifdef(`QUEUE_DIR', QUEUE_DIR, `/var/spool/mqueue')
- # timeouts (many of these)
- _OPTION(Timeout.initial, `confTO_INITIAL', `5m')
- _OPTION(Timeout.connect, `confTO_CONNECT', `5m')
- _OPTION(Timeout.iconnect, `confTO_ICONNECT', `5m')
- _OPTION(Timeout.helo, `confTO_HELO', `5m')
- _OPTION(Timeout.mail, `confTO_MAIL', `10m')
- _OPTION(Timeout.rcpt, `confTO_RCPT', `1h')
- _OPTION(Timeout.datainit, `confTO_DATAINIT', `5m')
- _OPTION(Timeout.datablock, `confTO_DATABLOCK', `1h')
- _OPTION(Timeout.datafinal, `confTO_DATAFINAL', `1h')
- _OPTION(Timeout.rset, `confTO_RSET', `5m')
- _OPTION(Timeout.quit, `confTO_QUIT', `2m')
- _OPTION(Timeout.misc, `confTO_MISC', `2m')
- _OPTION(Timeout.command, `confTO_COMMAND', `1h')
- _OPTION(Timeout.ident, `confTO_IDENT', `30s')
- _OPTION(Timeout.fileopen, `confTO_FILEOPEN', `60s')
- _OPTION(Timeout.control, `confTO_CONTROL', `2m')
- _OPTION(Timeout.queuereturn, `confTO_QUEUERETURN', `5d')
- _OPTION(Timeout.queuereturn.normal, `confTO_QUEUERETURN_NORMAL', `5d')
- _OPTION(Timeout.queuereturn.urgent, `confTO_QUEUERETURN_URGENT', `2d')
- _OPTION(Timeout.queuereturn.non-urgent, `confTO_QUEUERETURN_NONURGENT', `7d')
- _OPTION(Timeout.queuewarn, `confTO_QUEUEWARN', `4h')
- _OPTION(Timeout.queuewarn.normal, `confTO_QUEUEWARN_NORMAL', `4h')
- _OPTION(Timeout.queuewarn.urgent, `confTO_QUEUEWARN_URGENT', `1h')
- _OPTION(Timeout.queuewarn.non-urgent, `confTO_QUEUEWARN_NONURGENT', `12h')
- _OPTION(Timeout.hoststatus, `confTO_HOSTSTATUS', `30m')
- _OPTION(Timeout.resolver.retrans, `confTO_RESOLVER_RETRANS', `5s')
- _OPTION(Timeout.resolver.retrans.first, `confTO_RESOLVER_RETRANS_FIRST', `5s')
- _OPTION(Timeout.resolver.retrans.normal, `confTO_RESOLVER_RETRANS_NORMAL', `5s')
- _OPTION(Timeout.resolver.retry, `confTO_RESOLVER_RETRY', `4')
- _OPTION(Timeout.resolver.retry.first, `confTO_RESOLVER_RETRY_FIRST', `4')
- _OPTION(Timeout.resolver.retry.normal, `confTO_RESOLVER_RETRY_NORMAL', `4')
- # should we not prune routes in route-addr syntax addresses?
- _OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES', `False')
- # queue up everything before forking?
- _OPTION(SuperSafe, `confSAFE_QUEUE', `True')
- # status file
- O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', `MAIL_SETTINGS_DIR`'statistics')
- # time zone handling:
- # if undefined, use system default
- # if defined but null, use TZ envariable passed in
- # if defined and non-null, use that info
- ifelse(confTIME_ZONE, `USE_SYSTEM', `#O TimeZoneSpec=',
- confTIME_ZONE, `USE_TZ', `O TimeZoneSpec=',
- `O TimeZoneSpec=confTIME_ZONE')
- # default UID (can be username or userid:groupid)
- _OPTION(DefaultUser, `confDEF_USER_ID', `mailnull')
- # list of locations of user database file (null means no lookup)
- _OPTION(UserDatabaseSpec, `confUSERDB_SPEC', `MAIL_SETTINGS_DIR`'userdb')
- # fallback MX host
- _OPTION(FallbackMXhost, `confFALLBACK_MX', `fall.back.host.net')
- # if we are the best MX host for a site, try it directly instead of config err
- _OPTION(TryNullMXList, `confTRY_NULL_MX_LIST', `False')
- # load average at which we just queue messages
- _OPTION(QueueLA, `confQUEUE_LA', `8')
- # load average at which we refuse connections
- _OPTION(RefuseLA, `confREFUSE_LA', `12')
- # maximum number of children we allow at one time
- _OPTION(MaxDaemonChildren, `confMAX_DAEMON_CHILDREN', `12')
- # maximum number of new connections per second
- _OPTION(ConnectionRateThrottle, `confCONNECTION_RATE_THROTTLE', `3')
- # work recipient factor
- _OPTION(RecipientFactor, `confWORK_RECIPIENT_FACTOR', `30000')
- # deliver each queued job in a separate process?
- _OPTION(ForkEachJob, `confSEPARATE_PROC', `False')
- # work class factor
- _OPTION(ClassFactor, `confWORK_CLASS_FACTOR', `1800')
- # work time factor
- _OPTION(RetryFactor, `confWORK_TIME_FACTOR', `90000')
- # shall we sort the queue by hostname first?
- _OPTION(QueueSortOrder, `confQUEUE_SORT_ORDER', `priority')
- # minimum time in queue before retry
- _OPTION(MinQueueAge, `confMIN_QUEUE_AGE', `30m')
- # default character set
- _OPTION(DefaultCharSet, `confDEF_CHAR_SET', `iso-8859-1')
- # service switch file (ignored on Solaris, Ultrix, OSF/1, others)
- _OPTION(ServiceSwitchFile, `confSERVICE_SWITCH_FILE', `MAIL_SETTINGS_DIR`'service.switch')
- # hosts file (normally /etc/hosts)
- _OPTION(HostsFile, `confHOSTS_FILE', `/etc/hosts')
- # dialup line delay on connection failure
- _OPTION(DialDelay, `confDIAL_DELAY', `10s')
- # action to take if there are no recipients in the message
- _OPTION(NoRecipientAction, `confNO_RCPT_ACTION', `add-to-undisclosed')
- # chrooted environment for writing to files
- _OPTION(SafeFileEnvironment, `confSAFE_FILE_ENV', `/arch')
- # are colons OK in addresses?
- _OPTION(ColonOkInAddr, `confCOLON_OK_IN_ADDR', `True')
- # how many jobs can you process in the queue?
- _OPTION(MaxQueueRunSize, `confMAX_QUEUE_RUN_SIZE', `10000')
- # shall I avoid expanding CNAMEs (violates protocols)?
- _OPTION(DontExpandCnames, `confDONT_EXPAND_CNAMES', `False')
- # SMTP initial login message (old $e macro)
- _OPTION(SmtpGreetingMessage, `confSMTP_LOGIN_MSG', `$j Sendmail $v ready at $b')
- # UNIX initial From header format (old $l macro)
- _OPTION(UnixFromLine, `confFROM_LINE', `From $g $d')
- # From: lines that have embedded newlines are unwrapped onto one line
- _OPTION(SingleLineFromHeader, `confSINGLE_LINE_FROM_HEADER', `False')
- # Allow HELO SMTP command that does not `include' a host name
- _OPTION(AllowBogusHELO, `confALLOW_BOGUS_HELO', `False')
- # Characters to be quoted in a full name phrase (@,;:()[] are automatic)
- _OPTION(MustQuoteChars, `confMUST_QUOTE_CHARS', `.')
- # delimiter (operator) characters (old $o macro)
- _OPTION(OperatorChars, `confOPERATORS', `.:@[]')
- # shall I avoid calling initgroups(3) because of high NIS costs?
- _OPTION(DontInitGroups, `confDONT_INIT_GROUPS', `False')
- # are group-writable `:include:' and .forward files (un)trustworthy?
- _OPTION(UnsafeGroupWrites, `confUNSAFE_GROUP_WRITES', `True')
- # where do errors that occur when sending errors get sent?
- _OPTION(DoubleBounceAddress, `confDOUBLE_BOUNCE_ADDRESS', `postmaster')
- # where to save bounces if all else fails
- _OPTION(DeadLetterDrop, `confDEAD_LETTER_DROP', `/var/tmp/dead.letter')
- # what user id do we assume for the majority of the processing?
- _OPTION(RunAsUser, `confRUN_AS_USER', `sendmail')
- # maximum number of recipients per SMTP envelope
- _OPTION(MaxRecipientsPerMessage, `confMAX_RCPTS_PER_MESSAGE', `100')
- # shall we get local names from our installed interfaces?
- _OPTION(DontProbeInterfaces, `confDONT_PROBE_INTERFACES', `False')
- # Return-Receipt-To: header implies DSN request
- _OPTION(RrtImpliesDsn, `confRRT_IMPLIES_DSN', `False')
- # override connection address (for testing)
- _OPTION(ConnectOnlyTo, `confCONNECT_ONLY_TO', `0.0.0.0')
- # Trusted user for file ownership and starting the daemon
- _OPTION(TrustedUser, `confTRUSTED_USER', `root')
- # Control socket for daemon management
- _OPTION(ControlSocketName, `confCONTROL_SOCKET_NAME', `/var/spool/mqueue/.control')
- # Maximum MIME header length to protect MUAs
- _OPTION(MaxMimeHeaderLength, `confMAX_MIME_HEADER_LENGTH', `0/0')
- # Maximum length of the sum of all headers
- _OPTION(MaxHeadersLength, `confMAX_HEADERS_LENGTH', `32768')
- # Maximum depth of alias recursion
- _OPTION(MaxAliasRecursion, `confMAX_ALIAS_RECURSION', `10')
- # location of pid file
- _OPTION(PidFile, `confPID_FILE', `/var/run/sendmail.pid')
- # Prefix string for the process title shown on 'ps' listings
- _OPTION(ProcessTitlePrefix, `confPROCESS_TITLE_PREFIX', `prefix')
- # Data file (df) memory-buffer file maximum size
- _OPTION(DataFileBufferSize, `confDF_BUFFER_SIZE', `4096')
- # Transcript file (xf) memory-buffer file maximum size
- _OPTION(XscriptFileBufferSize, `confXF_BUFFER_SIZE', `4096')
- # list of authentication mechanisms
- _OPTION(AuthMechanisms, `confAUTH_MECHANISMS', `GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5')
- # default authentication information for outgoing connections
- _OPTION(DefaultAuthInfo, `confDEF_AUTH_INFO', `MAIL_SETTINGS_DIR`'default-auth-info')
- # try to authenticate? (Try when available/only when Authenticated)
- _OPTION(AuthOptions, `confAUTH_OPTIONS', `T')
- ###########################
- # Message precedences #
- ###########################
- Pfirst-class=0
- Pspecial-delivery=100
- Plist=-30
- Pbulk=-60
- Pjunk=-100
- #####################
- # Trusted users #
- #####################
- # this is equivalent to setting class "t"
- ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef(`confCT_FILE', confCT_FILE, `MAIL_SETTINGS_DIR`'trusted-users')
- Troot
- Tdaemon
- ifdef(`_NO_UUCP_', `dnl', `Tuucp')
- ifdef(`confTRUSTED_USERS', `T`'confTRUSTED_USERS', `dnl')
- #########################
- # Format of headers #
- #########################
- ifdef(`confFROM_HEADER',, `define(`confFROM_HEADER', `$?x$x <$g>$|$g$.')')dnl
- H?P?Return-Path: <$g>
- HReceived: confRECEIVED_HEADER
- H?D?Resent-Date: $a
- H?D?Date: $a
- H?F?Resent-From: confFROM_HEADER
- H?F?From: confFROM_HEADER
- H?x?Full-Name: $x
- # HPosted-Date: $a
- # H?l?Received-Date: $b
- H?M?Resent-Message-Id: <$t.$i@$j>
- H?M?Message-Id: <$t.$i@$j>
- #
- ######################################################################
- ######################################################################
- #####
- ##### REWRITING RULES
- #####
- ######################################################################
- ######################################################################
- ############################################
- ### Ruleset 3 -- Name Canonicalization ###
- ############################################
- Scanonify=3
- # handle null input (translate to <@> special case)
- R$@ $@ <@>
- # strip group: syntax (not inside angle brackets!) and trailing semicolon
- R$* $: $1 <@> mark addresses
- R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr>
- R@ $* <@> $: @ $1 unmark @host:...
- R$* :: $* <@> $: $1 :: $2 unmark node::addr
- R:`include': $* <@> $: :`include': $1 unmark :`include':...
- R$* [ IPv6 $- ] <@> $: $1 [ IPv6 $2 ] unmark IPv6 addr
- R$* : $* [ $* ] $: $1 : $2 [ $3 ] <@> remark if leading colon
- R$* : $* <@> $: $2 strip colon if marked
- R$* <@> $: $1 unmark
- R$* ; $1 strip trailing semi
- R$* < $* ; > $1 < $2 > bogus bracketed semi
- # null input now results from list:; syntax
- R$@ $@ :; <@>
- # strip angle brackets -- note RFC733 heuristic to get innermost item
- R$* $: < $1 > housekeeping <>
- R$+ < $* > < $2 > strip excess on left
- R< $* > $+ < $1 > strip excess on right
- R<> $@ < @ > MAIL FROM:<> case
- R< $+ > $: $1 remove housekeeping <>
- ifdef(`_USE_DEPRECATED_ROUTE_ADDR_',`dnl
- # make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
- R@ $+ , $+ @ $1 : $2 change all "," to ":"
- # localize and dispose of route-based addresses
- R@ $+ : $+ $@ $>Canonify2 < @$1 > : $2 handle <route-addr>
- dnl',`dnl
- # strip route address <@a,@b,@c:user@d> -> <user@d>
- R@ $+ , $+ $2
- R@ $+ : $+ $2
- dnl')
- # find focus for list syntax
- R $+ : $* ; @ $+ $@ $>Canonify2 $1 : $2 ; < @ $3 > list syntax
- R $+ : $* ; $@ $1 : $2; list syntax
- # find focus for @ syntax addresses
- R$+ @ $+ $: $1 < @ $2 > focus on domain
- R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right
- R$+ < @ $+ > $@ $>Canonify2 $1 < @ $2 > already canonical
- # do some sanity checking
- R$* < @ $* : $* > $* $1 < @ $2 $3 > $4 nix colons in addrs
- ifdef(`_NO_UUCP_', `dnl',
- `# convert old-style addresses to a domain-based address
- R$- ! $+ $@ $>Canonify2 $2 < @ $1 .UUCP > resolve uucp names
- R$+ . $- ! $+ $@ $>Canonify2 $3 < @ $1 . $2 > domain uucps
- R$+ ! $+ $@ $>Canonify2 $2 < @ $1 .UUCP > uucp subdomains
- ')
- ifdef(`_USE_DECNET_SYNTAX_',
- `# convert node::user addresses into a domain-based address
- R$- :: $+ $@ $>Canonify2 $2 < @ $1 .DECNET > resolve DECnet names
- R$- . $- :: $+ $@ $>Canonify2 $3 < @ $1.$2 .DECNET > numeric DECnet addr
- ',
- `dnl')
- # if we have % signs, take the rightmost one
- R$* % $* $1 @ $2 First make them all @s.
- R$* @ $* @ $* $1 % $2 @ $3 Undo all but the last.
- R$* @ $* $@ $>Canonify2 $1 < @ $2 > Insert < > and finish
- # else we must be a local name
- R$* $@ $>Canonify2 $1
- ################################################
- ### Ruleset 96 -- bottom half of ruleset 3 ###
- ################################################
- SCanonify2=96
- # handle special cases for local names
- R$* < @ localhost > $* $: $1 < @ $j . > $2 no domain at all
- R$* < @ localhost . $m > $* $: $1 < @ $j . > $2 local domain
- ifdef(`_NO_UUCP_', `dnl',
- `R$* < @ localhost . UUCP > $* $: $1 < @ $j . > $2 .UUCP domain')
- # check for IPv6 domain literal (save quoted form)
- R$* < @ [ IPv6 $- ] > $* $: $2 $| $1 < @@ [ $(dequote $2 $) ] > $3 mark IPv6 addr
- R$- $| $* < @@ $=w > $* $: $2 < @ $j . > $4 self-literal
- R$- $| $* < @@ [ $+ ] > $* $@ $2 < @ [ IPv6 $1 ] > $4 canon IP addr
- # check for IPv4 domain literal
- R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [a.b.c.d]
- R$* < @@ $=w > $* $: $1 < @ $j . > $3 self-literal
- R$* < @@ $+ > $* $@ $1 < @ $2 > $3 canon IP addr
- ifdef(`_DOMAIN_TABLE_', `dnl
- # look up domains in the domain table
- R$* < @ $+ > $* $: $1 < @ $(domaintable $2 $) > $3', `dnl')
- undivert(2)dnl LOCAL_RULE_3
- ifdef(`_BITDOMAIN_TABLE_', `dnl
- # handle BITNET mapping
- R$* < @ $+ .BITNET > $* $: $1 < @ $(bitdomain $2 $: $2.BITNET $) > $3', `dnl')
- ifdef(`_UUDOMAIN_TABLE_', `dnl
- # handle UUCP mapping
- R$* < @ $+ .UUCP > $* $: $1 < @ $(uudomain $2 $: $2.UUCP $) > $3', `dnl')
- ifdef(`_NO_UUCP_', `dnl',
- `ifdef(`UUCP_RELAY',
- `# pass UUCP addresses straight through
- R$* < @ $+ . UUCP > $* $@ $1 < @ $2 . UUCP . > $3',
- `# if really UUCP, handle it immediately
- ifdef(`_CLASS_U_',
- `R$* < @ $=U . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl')
- ifdef(`_CLASS_V_',
- `R$* < @ $=V . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl')
- ifdef(`_CLASS_W_',
- `R$* < @ $=W . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl')
- ifdef(`_CLASS_X_',
- `R$* < @ $=X . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl')
- ifdef(`_CLASS_Y_',
- `R$* < @ $=Y . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl')
- ifdef(`_NO_CANONIFY_', `dnl', `dnl
- # try UUCP traffic as a local address
- R$* < @ $+ . UUCP > $* $: $1 < @ $[ $2 $] . UUCP . > $3
- R$* < @ $+ . . UUCP . > $* $@ $1 < @ $2 . > $3')
- ')')
- dnl which daemon flags are set?
- R$* $: $&{daemon_flags} $| $1
- ifdef(`_NO_CANONIFY_', `dnl
- # pass to name server to make hostname canonical if in class Canonify
- R$* $| $* < @ $* $={Canonify} > $* $: $2 < @ $[ $3 $4 $] > $5
- # pass to name server to make hostname canonical if requested
- R$* c $* $| $* < @ $* $~P > $* $: $3 < @ $[ $4 $5 $] > $6
- dnl trailing dot? -> do not apply _CANONIFY_HOSTS_
- R$* $| $* < @ $+ . > $* $: $2 < @ $3 . > $4
- # add a trailing dot to qualified hostnames so other rules will work
- R$* $| $* < @ $+.$+ > $* $: $2 < @ $3.$4 . > $5
- ifdef(`_CANONIFY_HOSTS_', `dnl
- dnl this should only apply to unqualified hostnames
- dnl but if a valid character inside an unqualified hostname is an OperatorChar
- dnl then $- does not work.
- dnl paranoia: avoid looking up hostnames which end in $=P
- # lookup unqualified hostnames
- R$* $| $* < @ $* $~P > $* $: $2 < @ $[ $3 $4 $] > $5', `dnl')', `dnl
- dnl {daemon_flags} contains CC -> do not perform canonicalization!
- R$* CC $* $| $* $: $3
- # pass to name server to make hostname canonical unless turned off
- R$* $| $* < @ $* $~P > $* $: $2 < @ $[ $3 $4 $] > $5')
- dnl remove {daemon_flags} for other cases
- R$* $| $* $: $2
- # local host aliases and pseudo-domains are always canonical
- R$* < @ $=w > $* $: $1 < @ $2 . > $3
- R$* < @ $j > $* $: $1 < @ $j . > $2
- ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
- `R$* < @ $* $=M > $* $: $1 < @ $2 $3 . > $4',
- `R$* < @ $=M > $* $: $1 < @ $2 . > $3')
- R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4
- ifdef(`_VIRTUSER_TABLE_', `dnl
- dnl virtual hosts are also canonical
- ifdef(`_VIRTUSER_ENTIRE_DOMAIN_',
- `R$* < @ $* $={VirtHost} > $* $: $1 < @ $2 $3 . > $4',
- `R$* < @ $={VirtHost} > $* $: $1 < @ $2 . > $3')',
- `dnl')
- dnl remove superfluous dots (maybe repeatedly) which may have been added
- dnl by one of the rules before
- R$* < @ $* . . > $* $1 < @ $2 . > $3
- ##################################################
- ### Ruleset 4 -- Final Output Post-rewriting ###
- ##################################################
- Sfinal=4
- R$* <@> $@ handle <> and list:;
- # strip trailing dot off possibly canonical name
- R$* < @ $+ . > $* $1 < @ $2 > $3
- # eliminate internal code
- R$* < @ *LOCAL* > $* $1 < @ $j > $2
- # externalize local domain info
- R$* < $+ > $* $1 $2 $3 defocus
- R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3 <route-addr> canonical
- R@ $* $@ @ $1 ... and exit
- ifdef(`_NO_UUCP_', `dnl',
- `# UUCP must always be presented in old form
- R$+ @ $- . UUCP $2!$1 u@h.UUCP => h!u')
- ifdef(`_USE_DECNET_SYNTAX_',
- `# put DECnet back in :: form
- R$+ @ $+ . DECNET $2 :: $1 u@h.DECNET => h::u',
- `dnl')
- # delete duplicate local names
- R$+ % $=w @ $=w $1 @ $2 u%host@host => u@host
- ##############################################################
- ### Ruleset 97 -- recanonicalize and call ruleset zero ###
- ### (used for recursive calls) ###
- ##############################################################
- SRecurse=97
- R$* $: $>canonify $1
- R$* $@ $>parse $1
- ######################################
- ### Ruleset 0 -- Parse Address ###
- ######################################
- Sparse=0
- R$* $: $>Parse0 $1 initial parsing
- R<@> $#_LOCAL_ $: <@> special case error msgs
- R$* $: $>ParseLocal $1 handle local hacks
- R$* $: $>Parse1 $1 final parsing
- #
- # Parse0 -- do initial syntax checking and eliminate local addresses.
- # This should either return with the (possibly modified) input
- # or return with a #error mailer. It should not return with a
- # #mailer other than the #error mailer.
- #
- SParse0
- R<@> $@ <@> special case error msgs
- R$* : $* ; <@> $#error $@ 5.1.3 $: "553 List:; syntax illegal for recipient addresses"
- R@ <@ $* > < @ $1 > catch "@@host" bogosity
- R<@ $+> $#error $@ 5.1.3 $: "553 User address required"
- R$* $: <> $1
- R<> $* < @ [ $+ ] > $* $1 < @ [ $2 ] > $3
- R<> $* <$* : $* > $* $#error $@ 5.1.3 $: "553 Colon illegal in host name part"
- R<> $* $1
- R$* < @ . $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
- R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
- # now delete the local info -- note $=O to find characters that cause forwarding
- R$* < @ > $* $@ $>Parse0 $>canonify $1 user@ => user
- R< @ $=w . > : $* $@ $>Parse0 $>canonify $2 @here:... -> ...
- R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
- R< @ $+ > $#error $@ 5.1.3 $: "553 User address required"
- R$* $=O $* < @ $=w . > $@ $>Parse0 $>canonify $1 $2 $3 ...@here -> ...
- R$- $: $(dequote $1 $) < @ *LOCAL* > dequote "foo"
- R< @ *LOCAL* > $#error $@ 5.1.3 $: "553 User address required"
- R$* $=O $* < @ *LOCAL* >
- $@ $>Parse0 $>canonify $1 $2 $3 ...@*LOCAL* -> ...
- R$* < @ *LOCAL* > $: $1
- #
- # Parse1 -- the bottom half of ruleset 0.
- #
- SParse1
- ifdef(`_LDAP_ROUTING_', `dnl
- # handle LDAP routing for hosts in $={LDAPRoute}
- R$+ < @ $={LDAPRoute} . > $: $>LDAPExpand <$1 < @ $2 . >> <$1 @ $2>',
- `dnl')
- ifdef(`_MAILER_smtp_',
- `# handle numeric address spec
- dnl there is no check whether this is really an IP number
- R$* < @ [ $+ ] > $* $: $>ParseLocal $1 < @ [ $2 ] > $3 numeric internet spec
- R$* < @ [ $+ ] > $* $1 < @ [ $2 ] : $S > $3 Add smart host to path
- R$* < @ [ IPv6 $- ] : > $*
- $#_SMTP_ $@ [ $(dequote $2 $) ] $: $1 < @ [IPv6 $2 ] > $3 no smarthost: send
- R$* < @ [ $+ ] : > $* $#_SMTP_ $@ [$2] $: $1 < @ [$2] > $3 no smarthost: send
- R$* < @ [ $+ ] : $- : $*> $* $#$3 $@ $4 $: $1 < @ [$2] > $5 smarthost with mailer
- R$* < @ [ $+ ] : $+ > $* $#_SMTP_ $@ $3 $: $1 < @ [$2] > $4 smarthost without mailer',
- `dnl')
- ifdef(`_VIRTUSER_TABLE_', `dnl
- # handle virtual users
- R$+ $: <!> $1 Mark for lookup
- ifdef(`_VIRTUSER_ENTIRE_DOMAIN_',
- `R<!> $+ < @ $* $={VirtHost} . > $: < $(virtuser $1 @ $2 $3 $@ $1 $: @ $) > $1 < @ $2 $3 . >',
- `R<!> $+ < @ $={VirtHost} . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >')
- R<!> $+ < @ $=w . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
- R<@> $+ + $* < @ $* . >
- $: < $(virtuser $1 + * @ $3 $@ $1 $@ $2 $: @ $) > $1 + $2 < @ $3 . >
- R<@> $+ + $* < @ $* . >
- $: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
- dnl try default entry: @domain
- dnl +detail
- R<@> $+ + $* < @ $+ . > $: < $(virtuser @ $3 $@ $1 $@ $2 $: @ $) > $1 + $2 < @ $3 . >
- dnl without +detail (or no match)
- R<@> $+ < @ $+ . > $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
- R<@> $+ $: $1
- R<!> $+ $: $1
- R< error : $-.$-.$- : $+ > $* $#error $@ $1.$2.$3 $: $4
- R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
- R< $+ > $+ < @ $+ > $: $>Recurse $1',
- `dnl')
- # short circuit local delivery so forwarded email works
- ifdef(`_MAILER_usenet_', `dnl
- R$+ . USENET < @ $=w . > $#usenet $: $1 handle usenet specially', `dnl')
- ifdef(`_STICKY_LOCAL_DOMAIN_',
- `R$+ < @ $=w . > $: < $H > $1 < @ $2 . > first try hub
- R< $+ > $+ < $+ > $>MailerToTriple < $1 > $2 < $3 > yep ....
- dnl $H empty (but @$=w.)
- R< > $+ + $* < $+ > $#_LOCAL_ $: $1 + $2 plussed name?
- R< > $+ < $+ > $#_LOCAL_ $: @ $1 nope, local address',
- `R$=L < @ $=w . > $#_LOCAL_ $: @ $1 special local names
- R$+ < @ $=w . > $#_LOCAL_ $: $1 regular local name')
- ifdef(`_MAILER_TABLE_', `dnl
- # not local -- try mailer table lookup
- R$* <@ $+ > $* $: < $2 > $1 < @ $2 > $3 extract host name
- R< $+ . > $* $: < $1 > $2 strip trailing dot
- R< $+ > $* $: < $(mailertable $1 $) > $2 lookup
- dnl it is $~[ instead of $- to avoid matches on IPv6 addresses
- R< $~[ : $* > $* $>MailerToTriple < $1 : $2 > $3 check -- resolved?
- R< $+ > $* $: $>Mailertable <$1> $2 try domain',
- `dnl')
- undivert(4)dnl UUCP rules from `MAILER(uucp)'
- ifdef(`_NO_UUCP_', `dnl',
- `# resolve remotely connected UUCP links (if any)
- ifdef(`_CLASS_V_',
- `R$* < @ $=V . UUCP . > $* $: $>MailerToTriple < $V > $1 <@$2.UUCP.> $3',
- `dnl')
- ifdef(`_CLASS_W_',
- `R$* < @ $=W . UUCP . > $* $: $>MailerToTriple < $W > $1 <@$2.UUCP.> $3',
- `dnl')
- ifdef(`_CLASS_X_',
- `R$* < @ $=X . UUCP . > $* $: $>MailerToTriple < $X > $1 <@$2.UUCP.> $3',
- `dnl')')
- # resolve fake top level domains by forwarding to other hosts
- ifdef(`BITNET_RELAY',
- `R$*<@$+.BITNET.>$* $: $>MailerToTriple < $B > $1 <@$2.BITNET.> $3 user@host.BITNET',
- `dnl')
- ifdef(`DECNET_RELAY',
- `R$*<@$+.DECNET.>$* $: $>MailerToTriple < $C > $1 <@$2.DECNET.> $3 user@host.DECNET',
- `dnl')
- ifdef(`_MAILER_pop_',
- `R$+ < @ POP. > $#pop $: $1 user@POP',
- `dnl')
- ifdef(`_MAILER_fax_',
- `R$+ < @ $+ .FAX. > $#fax $@ $2 $: $1 user@host.FAX',
- `ifdef(`FAX_RELAY',
- `R$*<@$+.FAX.>$* $: $>MailerToTriple < $F > $1 <@$2.FAX.> $3 user@host.FAX',
- `dnl')')
- ifdef(`UUCP_RELAY',
- `# forward non-local UUCP traffic to our UUCP relay
- R$*<@$*.UUCP.>$* $: $>MailerToTriple < $Y > $1 <@$2.UUCP.> $3 uucp mail',
- `ifdef(`_MAILER_uucp_',
- `# forward other UUCP traffic straight to UUCP
- R$* < @ $+ .UUCP. > $* $#_UUCP_ $@ $2 $: $1 < @ $2 .UUCP. > $3 user@host.UUCP',
- `dnl')')
- ifdef(`_MAILER_usenet_', `
- # addresses sent to net.group.USENET will get forwarded to a newsgroup
- R$+ . USENET $#usenet $: $1',
- `dnl')
- ifdef(`_LOCAL_RULES_',
- `# figure out what should stay in our local mail system
- undivert(1)', `dnl')
- # pass names that still have a host to a smarthost (if defined)
- R$* < @ $* > $* $: $>MailerToTriple < $S > $1 < @ $2 > $3 glue on smarthost name
- # deal with other remote names
- ifdef(`_MAILER_smtp_',
- `R$* < @$* > $* $#_SMTP_ $@ $2 $: $1 < @ $2 > $3 user@host.domain',
- `R$* < @$* > $* $#error $@ 5.1.2 $: "553 Unrecognized host name " $2')
- # handle locally delivered names
- R$=L $#_LOCAL_ $: @ $1 special local names
- R$+ $#_LOCAL_ $: $1 regular local names
- ###########################################################################
- ### Ruleset 5 -- special rewriting after aliases have been expanded ###
- ###########################################################################
- SLocal_localaddr
- Slocaladdr=5
- R$+ $: $1 $| $>"Local_localaddr" $1
- R$+ $| $#$* $#$2
- R$+ $| $* $: $1
- # deal with plussed users so aliases work nicely
- R$+ + * $#_LOCAL_ $@ $&h $: $1
- R$+ + $* $#_LOCAL_ $@ + $2 $: $1 + *
- # prepend an empty "forward host" on the front
- R$+ $: <> $1
- ifdef(`LUSER_RELAY', `dnl
- # send unrecognized local users to a relay host
- R< > $+ $: < $L > $(user $1 $) look up user
- R< $* > $+ <> $: < > $2 found; strip $L',
- `dnl')
- # see if we have a relay or a hub
- R< > $+ $: < $H > $1 try hub
- R< > $+ $: < $R > $1 try relay
- R< > $+ $: < > < $1 <> $&h > nope, restore +detail
- R< > < $+ <> + $* > $: < > < $1 + $2 > check whether +detail
- R< > < $+ <> $* > $: < > < $1 > else discard
- R< > < $+ + $* > $* < > < $1 > + $2 $3 find the user part
- R< > < $+ > + $* $#_LOCAL_ $@ $2 $: @ $1 strip the extra +
- R< > < $+ > $@ $1 no +detail
- R$+ $: $1 <> $&h add +detail back in
- R$+ <> + $* $: $1 + $2 check whether +detail
- R$+ <> $* $: $1 else discard
- R< local : $* > $* $: $>MailerToTriple < local : $1 > $2 no host extension
- R< error : $* > $* $: $>MailerToTriple < error : $1 > $2 no host extension
- R< $- : $+ > $+ $: $>MailerToTriple < $1 : $2 > $3 < @ $2 >
- R< $+ > $+ $@ $>MailerToTriple < $1 > $2 < @ $1 >
- ifdef(`_MAILER_TABLE_', `dnl
- ###################################################################
- ### Ruleset 90 -- try domain part of mailertable entry ###
- dnl input: LeftPartOfDomain <RightPartOfDomain> FullAddress
- ###################################################################
- SMailertable=90
- dnl shift and check
- dnl %2 is not documented in cf/README
- R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
- dnl it is $~[ instead of $- to avoid matches on IPv6 addresses
- R$* <$~[ : $* > $* $>MailerToTriple < $2 : $3 > $4 check -- resolved?
- R$* < . $+ > $* $@ $>Mailertable $1 . <$2> $3 no -- strip & try again
- dnl is $2 always empty?
- R$* < $* > $* $: < $(mailertable . $@ $1$2 $) > $3 try "."
- R< $~[ : $* > $* $>MailerToTriple < $1 : $2 > $3 "." found?
- dnl return full address
- R< $* > $* $@ $2 no mailertable match',
- `dnl')
- ###################################################################
- ### Ruleset 95 -- canonify mailer:[user@]host syntax to triple ###
- dnl input: in general: <[mailer:]host> lp<@domain>rest
- dnl <> address -> address
- dnl <error:d.s.n:text> -> error
- dnl <error:text> -> error
- dnl <mailer:user@host> lp<@domain>rest -> mailer host user
- dnl <mailer:host> address -> mailer host address
- dnl <localdomain> address -> address
- dnl <[IPv6 number]> address -> relay number address
- dnl <host> address -> relay host address
- ###################################################################
- SMailerToTriple=95
- R< > $* $@ $1 strip off null relay
- R< error : $-.$-.$- : $+ > $* $#error $@ $1.$2.$3 $: $4
- R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
- R< local : $* > $* $>CanonLocal < $1 > $2
- R< $- : $+ @ $+ > $*<$*>$* $# $1 $@ $3 $: $2<@$3> use literal user
- R< $- : $+ > $* $# $1 $@ $2 $: $3 try qualified mailer
- R< $=w > $* $@ $2 delete local host
- R< [ IPv6 $+ ] > $* $#_RELAY_ $@ $(dequote $1 $) $: $2 use unqualified mailer
- R< $+ > $* $#_RELAY_ $@ $1 $: $2 use unqualified mailer
- ###################################################################
- ### Ruleset CanonLocal -- canonify local: syntax ###
- dnl input: <user> address
- dnl <x> <@host> : rest -> Recurse rest
- dnl <x> p1 $=O p2 <@host> -> Recurse p1 $=O p2
- dnl <> user <@host> rest -> local user@host user
- dnl <> user -> local user user
- dnl <user@host> lp <@domain> rest -> <user> lp <@host> [cont]
- dnl <user> lp <@host> rest -> local lp@host user
- dnl <user> lp -> local lp user
- ###################################################################
- SCanonLocal
- # strip local host from routed addresses
- R< $* > < @ $+ > : $+ $@ $>Recurse $3
- R< $* > $+ $=O $+ < @ $+ > $@ $>Recurse $2 $3 $4
- # strip trailing dot from any host name that may appear
- R< $* > $* < @ $* . > $: < $1 > $2 < @ $3 >
- # handle local: syntax -- use old user, either with or without host
- R< > $* < @ $* > $* $#_LOCAL_ $@ $1@$2 $: $1
- R< > $+ $#_LOCAL_ $@ $1 $: $1
- # handle local:user@host syntax -- ignore host part
- R< $+ @ $+ > $* < @ $* > $: < $1 > $3 < @ $4 >
- # handle local:user syntax
- R< $+ > $* <@ $* > $* $#_LOCAL_ $@ $2@$3 $: $1
- R< $+ > $* $#_LOCAL_ $@ $2 $: $1
- ###################################################################
- ### Ruleset 93 -- convert header names to masqueraded form ###
- ###################################################################
- SMasqHdr=93
- ifdef(`_GENERICS_TABLE_', `dnl
- # handle generics database
- ifdef(`_GENERICS_ENTIRE_DOMAIN_',
- dnl if generics should be applied add a @ as mark
- `R$+ < @ $* $=G . > $: < $1@$2$3 > $1 < @ $2$3 . > @ mark',
- `R$+ < @ $=G . > $: < $1@$2 > $1 < @ $2 . > @ mark')
- R$+ < @ *LOCAL* > $: < $1@$j > $1 < @ *LOCAL* > @ mark
- dnl workspace: either user<@domain> or <user@domain> user <@domain> @
- dnl ignore the first case for now
- dnl if it has the mark lookup full address
- R< $+ > $+ < $* > @ $: < $(generics $1 $: @ $1 $) > $2 < $3 >
- dnl workspace: ... or <match|@user@domain> user <@domain>
- dnl no match, try user+detail@domain
- R<@$+ + $* @ $+> $+ < @ $+ >
- $: < $(generics $1+*@$3 $@ $2 $:@$1 + $2@$3 $) > $4 < @ $5 >
- R<@$+ + $* @ $+> $+ < @ $+ >
- $: < $(generics $1@$3 $: $) > $4 < @ $5 >
- dnl no match, remove mark
- R<@$+ > $+ < @ $+ > $: < > $2 < @ $3 >
- dnl no match, try @domain for exceptions
- R< > $+ < @ $+ . > $: < $(generics @$2 $@ $1 $: $) > $1 < @ $2 . >
- dnl workspace: ... or <match> user <@domain>
- dnl no match, try local part
- R< > $+ < @ $+ > $: < $(generics $1 $: $) > $1 < @ $2 >
- R< > $+ + $* < @ $+ > $: < $(generics $1+* $@ $2 $: $) > $1 + $2 < @ $3 >
- R< > $+ + $* < @ $+ > $: < $(generics $1 $: $) > $1 + $2 < @ $3 >
- R< $* @ $* > $* < $* > $@ $>canonify $1 @ $2 found qualified
- R< $+ > $* < $* > $: $>canonify $1 @ *LOCAL* found unqualified
- R< > $* $: $1 not found',
- `dnl')
- # do not masquerade anything in class N
- R$* < @ $* $=N . > $@ $1 < @ $2 $3 . >
- # special case the users that should be exposed
- R$=E < @ *LOCAL* > $@ $1 < @ $j . > leave exposed
- ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
- `R$=E < @ $* $=M . > $@ $1 < @ $2 $3 . >',
- `R$=E < @ $=M . > $@ $1 < @ $2 . >')
- ifdef(`_LIMITED_MASQUERADE_', `dnl',
- `R$=E < @ $=w . > $@ $1 < @ $2 . >')
- # handle domain-specific masquerading
- ifdef(`_MASQUERADE_ENTIRE_DOMAIN_',
- `R$* < @ $* $=M . > $* $: $1 < @ $2 $3 . @ $M > $4 convert masqueraded doms',
- `R$* < @ $=M . > $* $: $1 < @ $2 . @ $M > $3 convert masqueraded doms')
- ifdef(`_LIMITED_MASQUERADE_', `dnl',
- `R$* < @ $=w . > $* $: $1 < @ $2 . @ $M > $3')
- R$* < @ *LOCAL* > $* $: $1 < @ $j . @ $M > $2
- R$* < @ $+ @ > $* $: $1 < @ $2 > $3 $M is null
- R$* < @ $+ @ $+ > $* $: $1 < @ $3 . > $4 $M is not null
- ###################################################################
- ### Ruleset 94 -- convert envelope names to masqueraded form ###
- ###################################################################
- SMasqEnv=94
- ifdef(`_MASQUERADE_ENVELOPE_',
- `R$+ $@ $>MasqHdr $1',
- `R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2')
- ###################################################################
- ### Ruleset 98 -- local part of ruleset zero (can be null) ###
- ###################################################################
- SParseLocal=98
- undivert(3)dnl LOCAL_RULE_0
- ifdef(`_LDAP_ROUTING_', `dnl
- SLDAPExpand
- # do the LDAP lookups
- R<$+><$+>
- $: <$(ldap_mailroutingaddress $2 $: $)> <$(ldap_mailhost $2 $: $)> <$1> <$2>
- # if mailRoutingAddress and local or non-existant mailHost,
- # return the new mailRoutingAddress
- R< $+ > < $=w > < $+ > < $+ > $@ $>Parse0 $>canonify $1
- R< $+ > < > < $+ > < $+ > $@ $>Parse0 $>canonify $1
- # if mailRoutingAddress and non-local mailHost,
- # relay to mailHost with new mailRoutingAddress
- R< $+ > < $+ > < $+ > < $+ > $#_RELAY_ $@ $2 $: $>canonify $1
- # if no mailRoutingAddress and local mailHost,
- # return original address
- R< > < $=w > <$+> <$+> $@ $2
- # if no mailRoutingAddress and non-local mailHost,
- # relay to mailHost with original address
- R< > < $+ > <$+> <$+> $#_RELAY_ $@ $1 $: $2
- # if no mailRoutingAddress and no mailHost,
- # try @domain
- R< > < > <$+> <$+ @ $+> $@ $>LDAPExpand <$1> <@ $3>
- # if no mailRoutingAddress and no mailHost and this was a domain attempt,
- ifelse(_LDAP_ROUTING_, `_MUST_EXIST_', `dnl
- # user does not exist
- R< > < > <$+> <@ $+> $#error $@ nouser $: "550 User unknown"',
- `dnl
- # return the original address
- R< > < > <$+> <@ $+> $@ $1')',
- `dnl')
- ifelse(substr(confDELIVERY_MODE,0,1), `d', `errprint(`WARNING: Antispam rules not available in deferred delivery mode.
- ')')
- ifdef(`_ACCESS_TABLE_', `dnl
- ######################################################################
- ### LookUpDomain -- search for domain in access database
- ###
- ### Parameters:
- ### <$1> -- key (domain name)
- ### <$2> -- default (what to return if not found in db)
- dnl must not be empty
- ### <$3> -- passthru (additional data passed unchanged through)
- ### <$4> -- mark (must be <(!|+) single-token>)
- ### ! does lookup only with tag
- ### + does lookup with and without tag
- dnl returns: <default> <passthru>
- dnl <result> <passthru>
- ######################################################################
- SLookUpDomain
- dnl remove IPv6 mark and dequote address
- dnl it is a bit ugly because it is checked on each "iteration"
- R<[IPv6 $-]> <$+> <$*> <$*> $: <[$(dequote $1 $)]> <$2> <$3> <$4>
- dnl workspace <key> <default> <passthru> <mark>
- dnl lookup with tag (in front, no delimiter here)
- R<$*> <$+> <$*> <$- $-> $: < $(access $5`'_TAG_DELIM_`'$1 $: ? $) > <$1> <$2> <$3> <$4 $5>
- dnl workspace <result-of-lookup|?> <key> <default> <passthru> <mark>
- ifdef(`_FFR_LOOKUPDOTDOMAIN', `dnl omit first component: lookup .rest
- R<?> <$+.$+> <$+> <$*> <$- $-> $: < $(access $5`'_TAG_DELIM_`'.$2 $: ? $) > <$1.$2> <$3> <$4> <$5 $6>', `dnl')
- dnl lookup without tag?
- R<?> <$+> <$+> <$*> <+ $*> $: < $(access $1 $: ? $) > <$1> <$2> <$3> <+ $4>
- ifdef(`_FFR_LOOKUPDOTDOMAIN', `dnl omit first component: lookup .rest
- R<?> <$+.$+> <$+> <$*> <+ $*> $: < $(access .$2 $: ? $) > <$1.$2> <$3> <$4> <+ $5>', `dnl')
- dnl lookup IP address (no check is done whether it is an IP number!)
- R<?> <[$+.$-]> <$+> <$*> <$*> $@ $>LookUpDomain <[$1]> <$3> <$4> <$5>
- dnl lookup IPv6 address
- R<?> <[$+:$-]> <$+> <$*> <$*> $: $>LookUpDomain <[$1]> <$3> <$4> <$5>
- dnl not found, but subdomain: try again
- R<?> <$+.$+> <$+> <$*> <$*> $@ $>LookUpDomain <$2> <$3> <$4> <$5>
- dnl not found, no subdomain: return default
- R<?> <$+> <$+> <$*> <$*> $@ <$2> <$3>
- dnl return result of lookup
- R<$*> <$+> <$+> <$*> <$*> $@ <$1> <$4>
- ######################################################################
- ### LookUpAddress -- search for host address in access database
- ###
- ### Parameters:
- ### <$1> -- key (dot quadded host address)
- ### <$2> -- default (what to return if not found in db)
- dnl must not be empty
- ### <$3> -- passthru (additional data passed through)
- ### <$4> -- tag (should end with _TAG_DELIM_)
- dnl returns: <default> <passthru>
- dnl <result> <passthru>
- dnl maybe the tag should not include _TAG_DELIM_ to be consistent
- dnl with LookUpDomain?
- ######################################################################
- SLookUpAddress
- R<$+> <$+> <$*> <$*> $: < $(access $4$1 $: ? $) > <$1> <$2> <$3> <$4>
- R<?> <$+> <$+> <$*> <$*> $: < $(access $1 $: ? $) > <$1> <$2> <$3> <$4>
- R<?> <$+:$-> <$+> <$*> <$*> $: $>LookUpAddress <$1> <$3> <$4> <$5>
- R<?> <$+.$-> <$+> <$*> <$*> $@ $>LookUpAddress <$1> <$3> <$4> <$5>
- R<?> <$+> <$+> <$*> <$*> $@ <$2> <$3>
- R<$*> <$+> <$+> <$*> <$*> $@ <$1> <$4>',
- `dnl')
- ######################################################################
- ### CanonAddr -- Convert an address into a standard form for
- ### relay checking. Route address syntax is
- ### crudely converted into a %-hack address.
- ###
- ### Parameters:
- ### $1 -- full recipient address
- ###
- ### Returns:
- ### parsed address, not in source route form
- dnl user%host%host<@domain>
- dnl host!user<@domain>
- ######################################################################
- SCanonAddr
- R$* $: $>Parse0 $>canonify $1 make domain canonical
- ifdef(`_USE_DEPRECATED_ROUTE_ADDR_',`dnl
- R< @ $+ > : $* @ $* < @ $1 > : $2 % $3 change @ to % in src route
- R$* < @ $+ > : $* : $* $3 $1 < @ $2 > : $4 change to % hack.
- R$* < @ $+ > : $* $3 $1 < @ $2 >
- dnl')
- ######################################################################
- ### ParseRecipient -- Strip off hosts in $=R as well as possibly
- ### $* $=m or the access database.
- ### Check user portion for host separators.
- ###
- ### Parameters:
- ### $1 -- full recipient address
- ###
- ### Returns:
- ### parsed, non-local-relaying address
- ######################################################################
- SParseRecipient
- dnl mark and canonify address
- R$* $: <?> $>CanonAddr $1
- R<?> $* < @ $* . > <?> $1 < @ $2 > strip trailing dots
- R<?> $- < @ $* > $: <?> $(dequote $1 $) < @ $2 > dequote local part
- # if no $=O character, no host in the user portion, we are done
- R<?> $* $=O $* < @ $* > $: <NO> $1 $2 $3 < @ $4>
- R<?> $* $@ $1
- ifdef(`_RELAY_ENTIRE_DOMAIN_', `dnl
- # if we relay, check username portion for user%host so host can be checked also
- R<NO> $* < @ $* $=m > $: <RELAY> $1 < @ $2 $3 >', `dnl')
- ifdef(`_RELAY_MX_SERVED_', `dnl
- R<NO> $* < @ $+ > $: <MX> < : $(mxserved $2 $) : > < $1 < @$2 > >
- R<MX> < : $* <TEMP> : > $* $#error $@ 4.7.1 $: "450 Can not check MX records for recipient host " $1
- R<MX> < $* : $=w. : $* > < $+ > $: <RELAY> $4
- R<MX> < : $* : > < $+ > $: <NO> $2', `dnl')
- ifdef(`_RELAY_HOSTS_ONLY_',
- `R<NO> $* < @ $=R > $: <RELAY> $1 < @ $2 >
- ifdef(`_ACCESS_TABLE_', `dnl
- R<NO> $* < @ $+ > $: <$(access To:$2 $: NO $)> $1 < @ $2 >
- R<NO> $* < @ $+ > $: <$(access $2 $: NO $)> $1 < @ $2 >',`dnl')',
- `R<NO> $* < @ $* $=R > $: <RELAY> $1 < @ $2 $3 >
- ifdef(`_ACCESS_TABLE_', `dnl
- R<NO> $* < @ $+ > $: $>LookUpDomain <$2> <NO> <$1 < @ $2 >> <+To>
- R<$+> <$+> $: <$1> $2',`dnl')')
- R<RELAY> $* < @ $* > $@ $>ParseRecipient $1
- R<$-> $* $@ $2
- ######################################################################
- ### check_relay -- check hostname/address on SMTP startup
- ######################################################################
- SLocal_check_relay
- Scheck`'_U_`'relay
- R$* $: $1 $| $>"Local_check_relay" $1
- R$* $| $* $| $#$* $#$3
- R$* $| $* $| $* $@ $>"Basic_check_relay" $1 $| $2
- SBasic_check_relay
- # check for deferred delivery mode
- R$* $: < ${deliveryMode} > $1
- R< d > $* $@ deferred
- R< $* > $* $: $2
- ifdef(`_ACCESS_TABLE_', `dnl
- R$+ $| $+ $: $>LookUpDomain < $1 > <?> < $2 > <+Connect>
- R<?> <$+> $: $>LookUpAddress < $1 > <?> < $1 > <Connect:> no: another lookup
- R<?> < $+ > $: $1 found nothing
- R<$={Accept}> < $* > $@ $1
- R<REJECT> $* $#error ifdef(`confREJECT_MSG', `$: "confREJECT_MSG"', `$@ 5.7.1 $: "550 Access denied"')
- R<DISCARD> $* $#discard $: discard
- dnl error tag
- R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4
- R<ERROR:$+> $* $#error $: $1
- dnl generic error from access map
- R<$+> $* $#error $: $1', `dnl')
- ifdef(`_RBL_',`dnl
- # DNS based IP address spam list
- R$* $: $&{client_addr}
- R::ffff:$-.$-.$-.$- $: <?> $(host $4.$3.$2.$1._RBL_. $: OK $)
- R$-.$-.$-.$- $: <?> $(host $4.$3.$2.$1._RBL_. $: OK $)
- R<?>OK $: OKSOFAR
- R<?>$+ $#error $@ 5.7.1 $: "550 Mail from " $&{client_addr} " refused by blackhole site _RBL_"',
- `dnl')
- undivert(8)
- ######################################################################
- ### check_mail -- check SMTP ``MAIL FROM:'' command argument
- ######################################################################
- SLocal_check_mail
- Scheck`'_U_`'mail
- R$* $: $1 $| $>"Local_check_mail" $1
- R$* $| $#$* $#$2
- R$* $| $* $@ $>"Basic_check_mail" $1
- SBasic_check_mail
- # check for deferred delivery mode
- R$* $: < ${deliveryMode} > $1
- R< d > $* $@ deferred
- R< $* > $* $: $2
- dnl workspace: address as given by MAIL FROM:
- R<> $@ <OK> we MUST accept <> (RFC 1123)
- ifdef(`_ACCEPT_UNQUALIFIED_SENDERS_',`dnl',`dnl
- dnl do some additional checks
- dnl no user@host
- dnl no user@localhost (if nonlocal sender)
- dnl this is a pretty simple canonification, it will not catch every case
- dnl just make sure the address has <> around it (which is required by
- dnl the RFC anyway, maybe we should complain if they are missing...)
- dnl dirty trick: if it is user@host, just add a dot: user@host. this will
- dnl not be modified by host lookups.
- R$+ $: <?> $1
- R<?><$+> $: <@> <$1>
- R<?>$+ $: <@> <$1>
- dnl workspace: <@> <address>
- dnl prepend daemon_flags
- R$* $: $&{daemon_flags} $| $1
- dnl workspace: ${daemon_flags} $| <@> <address>
- dnl do not allow these at all or only from local systems?
- R$* f $* $| <@> < $* @ $- > $: < ? $&{client_name} > < $3 @ $4 >
- dnl accept unqualified sender: change mark to avoid test
- R$* u $* $| <@> < $* > $: <?> < $3 >
- dnl workspace: ${daemon_flags} $| <@> <address>
- dnl or: <? ${client_name} > <address>
- dnl or: <?> <address>
- dnl remove daemon_flags
- R$* $| $* $: $2
- # handle case of @localhost on address
- R<@> < $* @ localhost > $: < ? $&{client_name} > < $1 @ localhost >
- R<@> < $* @ [127.0.0.1] >
- $: < ? $&{client_name} > < $1 @ [127.0.0.1] >
- R<@> < $* @ localhost.$m >
- $: < ? $&{client_name} > < $1 @ localhost.$m >
- ifdef(`_NO_UUCP_', `dnl',
- `R<@> < $* @ localhost.UUCP >
- $: < ? $&{client_name} > < $1 @ localhost.UUCP >')
- dnl workspace: < ? $&{client_name} > <user@localhost|host>
- dnl or: <@> <address>
- dnl or: <?> <address> (thanks to u in ${daemon_flags})
- R<@> $* $: $1 no localhost as domain
- dnl workspace: < ? $&{client_name} > <user@localhost|host>
- dnl or: <address>
- dnl or: <?> <address> (thanks to u in ${daemon_flags})
- R<? $=w> $* $: $2 local client: ok
- R<? $+> <$+> $#error $@ 5.5.4 $: "553 Real domain name required"
- dnl remove <?> (happens only if ${client_name} == "" or u in ${daemon_flags})
- R<?> $* $: $1')
- dnl workspace: address (or <address>)
- R$* $: <?> $>CanonAddr $1 canonify sender address and mark it
- dnl workspace: <?> CanonicalAddress (i.e. address in canonical form localpart<@host>)
- dnl there is nothing behind the <@host> so no trailing $* needed
- R<?> $* < @ $+ . > <?> $1 < @ $2 > strip trailing dots
- # handle non-DNS hostnames (*.bitnet, *.decnet, *.uucp, etc)
- R<?> $* < @ $* $=P > $: <OK> $1 < @ $2 $3 >
- dnl workspace <mark> CanonicalAddress where mark is ? or OK
- ifdef(`_ACCEPT_UNRESOLVABLE_DOMAINS_',
- `R<?> $* < @ $+ > $: <OK> $1 < @ $2 > ... unresolvable OK',
- `R<?> $* < @ $+ > $: <? $(resolve $2 $: $2 <PERM> $) > $1 < @ $2 >
- R<? $* <$->> $* < @ $+ >
- $: <$2> $3 < @ $4 >')
- dnl workspace <mark> CanonicalAddress where mark is ?, OK, PERM, TEMP
- dnl mark is ? iff the address is user (wo @domain)
- ifdef(`_ACCESS_TABLE_', `dnl
- # check sender address: user@address, user@, @address
- dnl should we remove +ext from user?
- dnl workspace: <mark> CanonicalAddress where mark is: ?, OK, PERM, TEMP
- R<$+> $+ < @ $* > $: @<$1> <$2 < @ $3 >> $| <F:$2@$3> <U:$2@> <H:$3>
- R<$+> $+ $: @<$1> <$2> $| <U:$2@>
- dnl workspace: @<mark> <CanonicalAddress> $| <@type:address> ....
- dnl $| is used as delimiter, otherwise false matches may occur: <user<@domain>>
- dnl will only return user<@domain when "reversing" the args
- R@ <$+> <$*> $| <$+> $: <@> <$1> <$2> $| $>SearchList <+From> $| <$3> <>
- dnl workspace: <@><mark> <CanonicalAddress> $| <result>
- R<@> <$+> <$*> $| <$*> $: <$3> <$1> <$2> reverse result
- dnl workspace: <result> <mark> <CanonicalAddress>
- # retransform for further use
- dnl required form:
- dnl <ResultOfLookup|mark> CanonicalAddress
- R<?> <$+> <$*> $: <$1> $2 no match
- R<$+> <$+> <$*> $: <$1> $3 relevant result, keep it', `dnl')
- dnl workspace <ResultOfLookup|mark> CanonicalAddress
- dnl mark is ? iff the address is user (wo @domain)
- ifdef(`_ACCEPT_UNQUALIFIED_SENDERS_',`dnl',`dnl
- # handle case of no @domain on address
- dnl prepend daemon_flags
- R<?> $* $: $&{daemon_flags} $| <?> $1
- dnl accept unqualified sender: change mark to avoid test
- R$* u $* $| <?> $* $: <OK> $3
- dnl remove daemon_flags
- R$* $| $* $: $2
- R<?> $* $: < ? $&{client_name} > $1
- R<?> $* $@ <OK> ...local unqualed ok
- R<? $+> $* $#error $@ 5.5.4 $: "553 Domain name required"
- ...remote is not')
- # check results
- R<?> $* $: @ $1 mark address: nothing known about it
- R<OK> $* $@ <OK>
- R<TEMP> $* $#error $@ 4.1.8 $: "451 Sender domain must resolve"
- R<PERM> $* $#error $@ 5.1.8 $: "501 Sender domain must exist"
- ifdef(`_ACCESS_TABLE_', `dnl
- R<$={Accept}> $* $@ $1
- R<DISCARD> $* $#discard $: discard
- R<REJECT> $* $#error ifdef(`confREJECT_MSG', `$: "confREJECT_MSG"', `$@ 5.7.1 $: "550 Access denied"')
- dnl error tag
- R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4
- R<ERROR:$+> $* $#error $: $1
- dnl generic error from access map
- R<$+> $* $#error $: $1 error from access db',
- `dnl')
- ######################################################################
- ### check_rcpt -- check SMTP ``RCPT TO:'' command argument
- ######################################################################
- SLocal_check_rcpt
- Scheck`'_U_`'rcpt
- R$* $: $1 $| $>"Local_check_rcpt" $1
- R$* $| $#$* $#$2
- R$* $| $* $@ $>"Basic_check_rcpt" $1
- SBasic_check_rcpt
- # check for deferred delivery mode
- R$* $: < ${deliveryMode} > $1
- R< d > $* $@ deferred
- R< $* > $* $: $2
- ifdef(`_REQUIRE_QUAL_RCPT_', `dnl
- # require qualified recipient?
- R$+ $: <?> $1
- R<?><$+> $: <@> <$1>
- R<?>$+ $: <@> <$1>
- dnl prepend daemon_flags
- R$* $: $&{daemon_flags} $| $1
- dnl workspace: ${daemon_flags} $| <@> <address>
- dnl do not allow these at all or only from local systems?
- R$* r $* $| <@> < $* @ $- > $: < ? $&{client_name} > < $3 @ $4 >
- R<?> < $* > $: <$1>
- R<? $=w> < $* > $: <$1>
- R<? $+> <$+> $#error $@ 5.5.4 $: "553 Domain name required"
- dnl remove daemon_flags for other cases
- R$* $| <@> $* $: $2', `dnl')
- ifdef(`_LOOSE_RELAY_CHECK_',`dnl
- R$* $: $>CanonAddr $1
- R$* < @ $* . > $1 < @ $2 > strip trailing dots',
- `R$* $: $>ParseRecipient $1 strip relayable hosts')
- ifdef(`_BESTMX_IS_LOCAL_',`dnl
- ifelse(_BESTMX_IS_LOCAL_, `', `dnl
- # unlimited bestmx
- R$* < @ $* > $* $: $1 < @ $2 @@ $(bestmx $2 $) > $3',
- `dnl
- # limit bestmx to $=B
- R$* < @ $* $=B > $* $: $1 < @ $2 $3 @@ $(bestmx $2 $3 $) > $4')
- R$* $=O $* < @ $* @@ $=w . > $* $@ $>Basic_check_rcpt $1 $2 $3
- R$* < @ $* @@ $=w . > $* $: $1 < @ $3 > $4
- R$* < @ $* @@ $* > $* $: $1 < @ $2 > $4')
- ifdef(`_BLACKLIST_RCPT_',`dnl
- ifdef(`_ACCESS_TABLE_', `dnl
- # blacklist local users or any host from receiving mail
- R$* $: <?> $1
- dnl user is now tagged with @ to be consistent with check_mail
- dnl and to distinguish users from hosts (com would be host, com@ would be user)
- R<?> $+ < @ $=w > $: <> <$1 < @ $2 >> $| <F:$1@$2> <U:$1@>
- R<?> $+ < @ $* > $: <> <$1 < @ $2 >> $| <F:$1@$2> <H:$2>
- R<?> $+ $: <> <$1> $| <U:$1@>
- dnl $| is used as delimiter, otherwise false matches may occur: <user<@domain>>
- dnl will only return user<@domain when "reversing" the args
- R<> <$*> $| <$+> $: <@> <$1> $| $>SearchList <+To> $| <$2> <>
- R<@> <$*> $| <$*> $: <$2> <$1> reverse result
- R<?> <$*> $: @ $1 mark address as no match
- R<$={Accept}> <$*> $: @ $2 mark address as no match
- ifdef(`_DELAY_CHECKS_',`dnl
- dnl we have to filter these because otherwise they would be interpreted
- dnl as generic error message...
- dnl error messages should be "tagged" by prefixing them with error: !
- dnl that would make a lot of things easier.
- dnl maybe we should stop checks already here (if SPAM_xyx)?
- R<$={SpamTag}> <$*> $: @ $2 mark address as no match')
- R<REJECT> $* $#error $@ 5.2.1 $: "550 Mailbox disabled for this recipient"
- R<DISCARD> $* $#discard $: discard
- dnl error tag
- R<ERROR:$-.$-.$-:$+> $* $#error $@ $1.$2.$3 $: $4
- R<ERROR:$+> $* $#error $: $1
- dnl generic error from access map
- R<$+> $* $#error $: $1 error from access db
- R@ $* $1 remove mark', `dnl')', `dnl')
- ifdef(`_PROMISCUOUS_RELAY_', `divert(-1)')
- # authenticated by a trusted mechanism?
- R$* $: $1 $| $&{auth_type}
- dnl empty ${auth_type}?
- R$* $| $: $1
- dnl mechanism ${auth_type} accepted?
- R$* $| $={TrustAuthMech} $@ RELAYAUTH
- dnl undo addition of ${auth_type}
- R$* $| $* $: $1
- ifelse(defn(`_NO_UUCP_'), `r',
- `R$* ! $* < @ $* > $: <REMOTE> $2 < @ BANG_PATH >', `dnl')
- # anything terminating locally is ok
- ifdef(`_RELAY_ENTIRE_DOMAIN_', `dnl
- R$+ < @ $* $=m > $@ RELAYTO', `dnl')
- R$+ < @ $=w > $@ RELAYTO
- ifdef(`_RELAY_HOSTS_ONLY_',
- `R$+ < @ $=R > $@ RELAYTO
- ifdef(`_ACCESS_TABLE_', `dnl
- R$+ < @ $+ > $: <$(access To:$2 $: ? $)> <$1 < @ $2 >>
- R$+ < @ $+ > $: <$(access $2 $: ? $)> <$1 < @ $2 >>',`dnl')',
- `R$+ < @ $* $=R > $@ RELAYTO
- ifdef(`_ACCESS_TABLE_', `dnl
- R$+ < @ $+ > $: $>LookUpDomain <$2> <?> <$1 < @ $2 >> <+To>',`dnl')')
- ifdef(`_ACCESS_TABLE_', `dnl
- R<RELAY> $* $@ RELAYTO
- R<$*> <$*> $: $2',`dnl')
- ifdef(`_RELAY_MX_SERVED_', `dnl
- # allow relaying for hosts which we MX serve
- R$+ < @ $+ > $: < : $(mxserved $2 $) : > $1 < @ $2 >
- dnl this must not necessarily happen if the client is checked first...
- R< : $* <TEMP> : > $* $#error $@ 4.7.1 $: "450 Can not check MX records for recipient host " $1
- R<$* : $=w . : $*> $* $@ RELAYTO
- R< : $* : > $* $: $2',
- `dnl')
- # check for local user (i.e. unqualified address)
- R$* $: <?> $1
- R<?> $* < @ $+ > $: <REMOTE> $1 < @ $2 >
- # local user is ok
- dnl is it really? the standard requires user@domain, not just user
- dnl but we should accept it anyway (maybe making it an option:
- dnl RequireFQDN ?)
- dnl postmaster must be accepted without domain (DRUMS)
- ifdef(`_REQUIRE_QUAL_RCPT_', `dnl
- R<?> postmaster $@ TOPOSTMASTER
- # require qualified recipient?
- dnl prepend daemon_flags
- R<?> $+ $: $&{daemon_flags} $| <?> $1
- dnl workspace: ${daemon_flags} $| <?> localpart
- dnl do not allow these at all or only from local systems?
- dnl r flag? add client_name
- R$* r $* $| <?> $+ $: < ? $&{client_name} > <?> $3
- dnl no r flag: relay to local user (only local part)
- # no qualified recipient required
- R$* $| <?> $+ $@ RELAYTOLOCAL
- dnl client_name is empty
- R<?> <?> $+ $@ RELAYTOLOCAL
- dnl client_name is local
- R<? $=w> <?> $+ $@ RELAYTOLOCAL
- dnl client_name is not local
- R<? $+> $+ $#error $@ 5.5.4 $: "553 Domain name required"', `dnl
- dnl no qualified recipient required
- R<?> $+ $@ RELAYTOLOCAL')
- dnl it is a remote user: remove mark and then check client
- R<$+> $* $: $2
- dnl currently the recipient address is not used below
- # anything originating locally is ok
- # check IP address
- R$* $: $&{client_addr}
- R$@ $@ RELAYFROM originated locally
- R0 $@ RELAYFROM originated locally
- R$=R $* $@ RELAYFROM relayable IP address
- ifdef(`_ACCESS_TABLE_', `dnl
- R$* $: $>LookUpAddress <$1> <?> <$1> <Connect:>
- R<RELAY> $* $@ RELAYFROM relayable IP address
- R<$*> <$*> $: $2', `dnl')
- R$* $: [ $1 ] put brackets around it...
- R$=w $@ RELAYFROM ... and see if it is local
- ifdef(`_RELAY_DB_FROM_', `define(`_RELAY_MAIL_FROM_', `1')')dnl
- ifdef(`_RELAY_LOCAL_FROM_', `define(`_RELAY_MAIL_FROM_', `1')')dnl
- ifdef(`_RELAY_MAIL_FROM_', `dnl
- # check whether FROM is allowed to use system as relay
- R$* $: $1 $| <?> $>CanonAddr $&f
- ifdef(`_RELAY_LOCAL_FROM_', `dnl
- # check whether local FROM is ok
- R$* $| <?> $+ < @ $=w . > $@ RELAYFROMMAIL FROM local', `dnl')
- ifdef(`_RELAY_DB_FROM_', `dnl
- R$* $| <?> $+ < @ $+ . > $1 $| <?> $2 < @ $3 > remove trailing dot
- R$* $| <?> $+ < @ $+ > $: $1 $| $2 < @ $3 > $| $>SearchList <! From> $| <F:$2@$3> ifdef(`_RELAY_DB_FROM_DOMAIN_', `<H:$3>') <>
- R$* $| $* <RELAY> $@ RELAYFROMMAIL RELAY FROM sender ok', `dnl
- ifdef(`_RELAY_DB_FROM_DOMAIN_', `errprint(`*** ERROR: _RELAY_DB_FROM_DOMAIN_ requires _RELAY_DB_FROM_
- ')',
- `dnl')
- dnl')
- R$* $| $* $: $1 restore recipient
- dnl we do not need that right now, but maybe if we add more rules...
- ', `dnl')
- # check client name: first: did it resolve?
- R$* $: < $&{client_resolve} >
- R<TEMP> $#error $@ 4.7.1 $: "450 Relaying temporarily denied. Cannot resolve PTR record for " $&{client_addr}
- R<FORGED> $#error $@ 5.7.1 $: "550 Relaying denied. IP name possibly forged " $&{client_name}
- R<FAIL> $#error $@ 5.7.1 $: "550 Relaying denied. IP name lookup failed " $&{client_name}
- dnl ${client_resolve} should be OK, so go ahead
- R$* $: <?> $&{client_name}
- dnl should not be necessary since it has been done for client_addr already
- R<?> $@ RELAYFROM
- ifdef(`_RELAY_ENTIRE_DOMAIN_', `dnl
- R<?> $* $=m $@ RELAYFROM', `dnl')
- R<?> $=w $@ RELAYFROM
- ifdef(`_RELAY_HOSTS_ONLY_',
- `R<?> $=R $@ RELAYFROM
- ifdef(`_ACCESS_TABLE_', `dnl
- R<?> $* $: <$(access Connect:$1 $: ? $)> <$1>
- R<?> <$*> $: <$(access $1 $: ? $)> <$1>',`dnl')',
- `R<?> $* $=R $@ RELAYFROM
- ifdef(`_ACCESS_TABLE_', `dnl
- R<?> $* $: $>LookUpDomain <$1> <?> <$1> <+Connect>',`dnl')')
- ifdef(`_ACCESS_TABLE_', `dnl
- R<RELAY> $* $@ RELAYFROM
- R<$*> <$*> $: $2',`dnl')
- # anything else is bogus
- R$* $#error $@ 5.7.1 $: "550 Relaying denied"
- divert(0)
- ifdef(`_DELAY_CHECKS_',`dnl
- # turn a canonical address in the form user<@domain>
- # qualify unqual. addresses with $j
- dnl it might have been only user (without <@domain>)
- SFullAddr
- R$* <@ $+ . > $1 <@ $2 >
- R$* <@ $* > $@ $1 <@ $2 >
- R$+ $@ $1 <@ $j >
- # call all necessary rulesets
- Scheck_rcpt
- dnl this test should be in the Basic_check_rcpt ruleset
- dnl which is the correct DSN code?
- # R$@ $#error $@ 5.1.3 $: "553 Recipient address required"
- R$+ $: $1 $| $>checkrcpt $1
- dnl now we can simply stop checks by returning "$# xyz" instead of just "ok"
- R$+ $| $#$* $#$2
- R$+ $| $* $: <?> $>FullAddr $>CanonAddr $1
- ifdef(`_SPAM_FH_',
- `dnl lookup user@ and user@address
- dnl one of the next two rules is supposed to match
- dnl this code has been copied from BLACKLIST... etc
- dnl and simplified by omitting some < >.
- R<?> $+ < @ $=w > $: <> $1 < @ $2 > $| <F: $1@$2 > <U: $1@>
- R<?> $+ < @ $* > $: <> $1 < @ $2 > $| <F: $1@$2 >
- dnl R<?> $@ something_is_very_wrong_here
- # lookup the addresses only with To tag
- R<> $* $| <$+> $: <@> $1 $| $>SearchList <!To> $| <$2> <>
- R<@> $* $| $* $: $2 $1 reverse result
- dnl', `dnl')
- ifdef(`_SPAM_FRIEND_',
- `# is the recipient a spam friend?
- ifdef(`_SPAM_HATER_',
- `errprint(`*** ERROR: define either SpamHater or SpamFriend
- ')', `dnl')
- R<SPAMFRIEND> $+ $@ SPAMFRIEND
- R<$*> $+ $: $2',
- `dnl')
- ifdef(`_SPAM_HATER_',
- `# is the recipient no spam hater?
- R<SPAMHATER> $+ $: $1 spam hater: continue checks
- R<$*> $+ $@ NOSPAMHATER everyone else: stop
- dnl',`dnl')
- dnl run further checks: check_mail
- dnl should we "clean up" $&f?
- R$* $: $1 $| $>checkmail <$&f>
- R$* $| $#$* $#$2
- dnl run further checks: check_relay
- R$* $: $1 $| $>checkrelay $&{client_name} $| $&{client_addr}
- R$* $| $#$* $#$2
- R$* $| $* $: $1
- ', `dnl')
- ifdef(`_ACCESS_TABLE_', `dnl
- ######################################################################
- ### SearchList: search a list of items in the access map
- ### Parameters:
- ### <exact tag> $| <mark:address> <mark:address> ... <>
- dnl maybe we should have a @ (again) in front of the mark to
- dnl avoid errorneous matches (with error messages?)
- dnl if we can make sure that tag is always a single token
- dnl then we can omit the delimiter $|, otherwise we need it
- dnl to avoid errorneous matchs (first rule: H: if there
- dnl is that mark somewhere in the list, it will be taken).
- dnl moreover, we can do some tricks to enforce lookup with
- dnl the tag only, e.g.:
- ### where "exact" is either "+" or "!":
- ### <+ TAG> lookup with and w/o tag
- ### <! TAG> lookup with tag
- dnl Warning: + and ! should be in OperatorChars (otherwise there must be
- dnl a blank between them and the tag.
- ### possible values for "mark" are:
- ### H: recursive host lookup (LookUpDomain)
- dnl A: recursive address lookup (LookUpAddress) [not yet required]
- ### E: exact lookup, no modifications
- ### F: full lookup, try user+ext@domain and user@domain
- ### U: user lookup, try user+ext and user (input must have trailing @)
- ### return: <RHS of lookup> or <?> (not found)
- ######################################################################
- SSearchList
- # if it is H: do lookup?
- R<$+> $| <H:$+> <$*> $: <$1> $| <@> $>LookUpDomain <$2> <?> <$3> <$1>
- R<$+> $| <@> <$+> <$*> $: <$1> $| <$2> <$3>
- dnl A: NOT YET REQUIRED
- dnl R<$+> $| <A:$+> <$*> $: <$1> $| <@> $>LookUpAddress <$2> <?> <$3> <$1>
- dnl R<$+> $| <@> <$+> <$*> $: <$1> $| <$2> <$3>
- dnl lookup of the item with tag
- dnl this applies to F: U: E:
- R<$- $-> $| <$-:$+> <$*> $: <$1 $2> $| <$(access $2`'_TAG_DELIM_`'$4 $: $3:$4 $)> <$5>
- dnl no match, try without tag
- R<+ $-> $| <$-:$+> <$*> $: <+ $1> $| <$(access $3 $: $2:$3 $)> <$4>
- dnl do we really have to distinguish these cases?
- dnl probably yes, there might be a + in the domain part (is that allowed?)
- R<$- $-> $| <F:$* + $*@$+> <$*> $: <$1 $2> $| <$(access $2`'_TAG_DELIM_`'$3@$5 $: F:$3 + $4@$5$)> <$6>
- R<+ $-> $| <F:$* + $*@$+> <$*> $: <+ $1> $| <$(access $2@$4 $: F:$2 + $3@$4$)> <$5>
- dnl user lookups are always with trailing @
- dnl do not remove the @ from the lookup:
- dnl it is part of the +detail@ which is omitted for the lookup
- R<$- $-> $| <U:$* + $*> <$*> $: <$1 $2> $| <$(access $2`'_TAG_DELIM_`'$3@ $: U:$3 + $4$)> <$5>
- R<+ $-> $| <U:$* + $*> <$*> $: <+ $1> $| <$(access $2@ $: U:$2 + $3$)> <$4>
- dnl special case for ERROR because this matches the input mark:address
- R<$+> $| <ERROR:$+> <> $@ <ERROR:$2>
- dnl no match, try rest of list
- R<$+> $| <$-:$+> <$+> $@ $>SearchList <$1> $| <$4>
- dnl no match, list empty: return failure
- R<$+> $| <$-:$+> <> $@ <?>
- dnl got result, return it
- R<$+> $| <$+> <$*> $@ <$2>
- dnl return result from recursive invocation
- R<$+> $| <$+> $@ <$2>', `dnl')
- # is user trusted to authenticate as someone else?
- dnl AUTH= parameter from MAIL command
- Strust_auth
- R$* $: $&{auth_type} $| $1
- # required by RFC 2554 section 4.
- R$@ $| $* $#error $@ 5.7.1 $: "550 not authenticated"
- dnl seems to be useful...
- R$* $| $&{auth_authen} $@ identical
- dnl call user supplied code
- R$* $| $* $: $1 $| $>"Local_trust_auth" $1
- R$* $| $#$* $#$2
- dnl default: error
- R$* $#error $@ 5.7.1 $: "550 " $&{auth_authen} " not allowed to act as " $&{auth_author}
- dnl empty ruleset definition so it can be called
- SLocal_trust_auth
- undivert(9)dnl LOCAL_RULESETS
- #
- ######################################################################
- ######################################################################
- #####
- `##### MAILER DEFINITIONS'
- #####
- ######################################################################
- ######################################################################
- undivert(7)dnl MAILER_DEFINITIONS