divert(-1) # # Copyright (c) 1983, 1995 Eric P. Allman # Copyright (c) 1988, 1993 # The Regents of the University of California. All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # 3. All advertising materials mentioning features or use of this software # must display the following acknowledgement: # This product includes software developed by the University of # California, Berkeley and its contributors. # 4. Neither the name of the University nor the names of its contributors # may be used to endorse or promote products derived from this software # without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # divert(0) VERSIONID(`@(#)proto.m4 8.139 (Berkeley) 12/31/96') MAILER(local)dnl # level 7 config file format V7/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.') errprint(` Use confDEF_USER_ID with a colon in the value instead.')') ifdef(`confREAD_TIMEOUT', `errprint(`*** confREAD_TIMEOUT is obsolete.') errprint(` Use individual confTO_ 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.') errprint(` Use confMAX_MESSAGE_SIZE for the second part of the value.')')') # clean option definitions below.... define(`_OPTION', `ifdef(`$2', `O $1=$2', `#O $1`'ifelse($3, `',, `=$3')')')dnl divert(0)dnl ################## # local info # ################## Cwlocalhost ifdef(`USE_CW_FILE', `# file containing names of hosts for which we receive email Fw`'confCW_FILE', `dnl') # my official domain name # ... `define' this only if sendmail cannot automatically determine your domain ifdef(`confDOMAIN_NAME', `Dj`'confDOMAIN_NAME', `#Dj$w.Foo.COM') ifdef(`_NULL_CLIENT_ONLY_', `divert(-1)')dnl 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) # place to which unknown users should be forwarded ifdef(`LUSER_RELAY', `', `#')dnl Kuser user -m -a<> ifdef(`LUSER_RELAY', `DL`'LUSER_RELAY', `#DLname_of_luser_relay') # 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[[ # Mailer table (overriding domains) ifdef(`MAILER_TABLE', `Kmailertable MAILER_TABLE', `#Kmailertable dbm /etc/mailertable') # Domain table (adding domains) ifdef(`DOMAIN_TABLE', `Kdomaintable DOMAIN_TABLE', `#Kdomaintable dbm /etc/domaintable') # Generics table (mapping outgoing addresses) ifdef(`GENERICS_TABLE', `Kgenerics GENERICS_TABLE', `#Kgenerics dbm /etc/genericstable') # Virtual user table (maps incoming users) ifdef(`VIRTUSER_TABLE', `Kvirtuser VIRTUSER_TABLE', `#Kvirtuser dbm /etc/virtusertable') # 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 ifdef(`_NULL_CLIENT_ONLY_', `#', `# class L: names that should be delivered locally, even if we have a relay # class M: domains that should be converted to $M #CL root ')CE root undivert(5)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 include(_CF_DIR_`m4/version.m4') ############### # Options # ############### # strip message body to 7 bits on input? _OPTION(SevenBitInput, `confSEVEN_BIT_INPUT') # 8-bit data handling _OPTION(EightBitMode, `confEIGHT_BIT_HANDLING', adaptive) ifdef(`_NULL_CLIENT_ONLY_', `dnl', ` # wait for alias file rebuild (default units: minutes) _OPTION(AliasWait, `confALIAS_WAIT', 5m) # location of alias file _OPTION(AliasFile, `ALIAS_FILE', /etc/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') # 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? _OPTION(AutoRebuildAliases, `confAUTO_REBUILD') # error message header/file _OPTION(ErrorHeader, `confERROR_MESSAGE', /etc/sendmail.oE) # error mode _OPTION(ErrorMode, `confERROR_MODE', print) # save Unix-style "From_" lines at top of header? _OPTION(SaveFromLine, `confSAVE_FROM_LINES') # temporary file mode _OPTION(TempFileMode, `confTEMP_FILE_MODE', 0600) # match recipients against GECOS field? _OPTION(MatchGECOS, `confMATCH_GECOS') # maximum hop count _OPTION(MaxHopCount, `confMAX_HOP', 17) # location of help file O HelpFile=ifdef(`HELP_FILE', HELP_FILE, /usr/lib/sendmail.hf) # ignore dots as terminators in incoming messages? _OPTION(IgnoreDots, `confIGNORE_DOTS') # name resolver options _OPTION(ResolverOptions, `confBIND_OPTS', +AAONLY) # deliver MIME-encapsulated error messages? _OPTION(SendMimeErrors, `confMIME_FORMAT_ERRORS') # 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') # use Errors-To: header? _OPTION(UseErrorsTo, `confUSE_ERRORS_TO') # log level _OPTION(LogLevel, `confLOG_LEVEL', 10) # send to me too, even in an alias expansion? _OPTION(MeToo, `confME_TOO') # verify RHS in newaliases? _OPTION(CheckAliases, `confCHECK_ALIASES') # default messages to old style headers if no special punctuation? _OPTION(OldStyleHeaders, `confOLD_STYLE_HEADERS') # SMTP daemon options _OPTION(DaemonPortOptions, `confDAEMON_OPTIONS', Port=esmtp) # 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.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) # should we not prune routes in route-addr syntax addresses? _OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES') # queue up everything before forking? _OPTION(SuperSafe, `confSAFE_QUEUE') # status file O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', /etc/sendmail.st) # 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', nobody) # list of locations of user database file (null means no lookup) _OPTION(UserDatabaseSpec, `confUSERDB_SPEC', /etc/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') # 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') # 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', /etc/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') # 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') # SMTP initial login message (old $e macro) _OPTION(SmtpGreetingMessage, `confSMTP_LOGIN_MSG') # UNIX initial From header format (old $l macro) _OPTION(UnixFromLine, `confFROM_LINE') # delimiter (operator) characters (old $o macro) _OPTION(OperatorChars, `confOPERATORS') # shall I avoid calling initgroups(3) because of high NIS costs? _OPTION(DontInitGroups, `confDONT_INIT_GROUPS') # are group-writable `:include:' and .forward files (un)trustworthy? _OPTION(UnsafeGroupWrites, `confUNSAFE_GROUP_WRITES') # where do errors that occur when sending errors get sent? _OPTION(DoubleBounceAddress, `confDOUBLE_BOUNCE_ADDRESS') # what user id do we assume for the majority of the processing? _OPTION(RunAsUser, `confRUN_AS_USER', sendmail) ########################### # Message precedences # ########################### Pfirst-class=0 Pspecial-delivery=100 Plist=-30 Pbulk=-60 Pjunk=-100 ##################### # Trusted users # ##################### # this is equivalent to setting class "t" ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef(`confCT_FILE', confCT_FILE, `/etc/sendmail.ct') Troot Tdaemon ifdef(`_NO_UUCP_', `dnl', `Tuucp') ifdef(`confTRUSTED_USERS', `T`'confTRUSTED_USERS', `dnl') ######################### # Format of headers # ######################### ifdef(`confFROM_HEADER',, `define(`confFROM_HEADER', `$?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@$j> ifdef(`_NULL_CLIENT_ONLY_', `include(_CF_DIR_`'m4/nullrelay.m4)m4exit', `dnl') # ###################################################################### ###################################################################### ##### ##### REWRITING RULES ##### ###################################################################### ###################################################################### ############################################ ### Ruleset 3 -- Name Canonicalization ### ############################################ S3 # handle null input (translate to <@> special case) R$@ $@ <@> # strip group: syntax (not inside angle brackets!) and trailing semicolon R$* $: $1 <@> mark addresses R$* < $* > $* <@> $: $1 < $2 > $3 unmark R@ $* <@> $: @ $1 unmark @host:... R$* :: $* <@> $: $1 :: $2 unmark node::addr R:`include': $* <@> $: :`include': $1 unmark :`include':... R$* [ $* : $* ] <@> $: $1 [ $2 : $3 ] unmark IPv6 addrs R$* : $* [ $* ] $: $1 : $2 [ $3 ] <@> remark if leading colon R$* : $* <@> $: $2 strip colon if marked R$* <@> $: $1 unmark R$* ; $: $1 strip trailing semi # null input now results from list:; syntax R$@ $@ :; <@> # strip angle brackets -- note RFC733 heuristic to get innermost item R$* $: < $1 > housekeeping <> R$+ < $* > < $2 > strip excess on left R< $* > $+ < $1 > strip excess on right R<> $@ < @ > MAIL FROM:<> case R< $+ > $: $1 remove housekeeping <> # 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@ $+ : $+ $@ $>96 < @$1 > : $2 handle # find focus for list syntax R $+ : $* ; @ $+ $@ $>96 $1 : $2 ; < @ $3 > list syntax R $+ : $* ; $@ $1 : $2; list syntax # find focus for @ syntax addresses R$+ @ $+ $: $1 < @ $2 > focus on domain R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right R$+ < @ $+ > $@ $>96 $1 < @ $2 > already canonical # do some sanity checking R$* < @ $* : $* > $* $1 < @ $2 $3 > $4 nix colons in addrs ifdef(`_NO_UUCP_', `dnl', `# convert old-style addresses to a domain-based address R$- ! $+ $@ $>96 $2 < @ $1 .UUCP > resolve uucp names R$+ . $- ! $+ $@ $>96 $3 < @ $1 . $2 > domain uucps R$+ ! $+ $@ $>96 $2 < @ $1 .UUCP > uucp subdomains ') ifdef(`_USE_DECNET_SYNTAX_', `# convert node::user addresses into a domain-based address R$- :: $+ $@ $>96 $2 < @ $1 .DECNET > resolve DECnet names R$- . $- :: $+ $@ $>96 $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 @ $3 Undo all but the last. R$* @ $* $@ $>96 $1 < @ $2 > Insert < > and finish # else we must be a local name R$* $@ $>96 $1 ################################################ ### Ruleset 96 -- bottom half of ruleset 3 ### ################################################ S96 # handle special cases for local names R$* < @ 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 . > $2 .UUCP domain') R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [a.b.c.d] R$* < @@ $=w > $* $: $1 < @ $j . > $3 self-literal R$* < @@ $+ > $* $@ $1 < @ $2 > $3 canon IP addr # look up domains in the domain table ifdef(`DOMAIN_TABLE', `', `#')dnl R$* < @ $+ > $* $: $1 < @ $(domaintable $2 $) > $3 undivert(2)dnl ifdef(`_NO_UUCP_', `dnl', `ifdef(`UUCP_RELAY', `# pass UUCP addresses straight through R$* < @ $+ . 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 . > $3', `dnl') # try UUCP traffic as a local address R$* < @ $+ . UUCP > $* $: $1 < @ $[ $2 $] . UUCP . > $3 R$* < @ $+ . . UUCP . > $* $@ $1 < @ $2 . > $3') ') # pass to name server to make hostname canonical ifdef(`_NO_CANONIFY_', `#')dnl R$* < @ $* $~P > $* $: $1 < @ $[ $2 $3 $] > $4 # local host aliases and pseudo-domains are always canonical R$* < @ $=w > $* $: $1 < @ $2 . > $3 R$* < @ $j > $* $: $1 < @ $j . > $2 R$* < @ $* $=M > $* $: $1 < @ $2 $3 . > $4 R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4 R$* < @ $* . . > $* $1 < @ $2 . > $3 ################################################## ### Ruleset 4 -- Final Output Post-rewriting ### ################################################## S4 R$* <@> $@ handle <> and list:; # strip trailing dot off possibly canonical name R$* < @ $+ . > $* $1 < @ $2 > $3 # eliminate internal code -- should never get this far! R$* < @ *LOCAL* > $* $1 < @ $j > $2 # externalize local domain info R$* < $+ > $* $1 $2 $3 defocus R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3 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 @ $2 u%host@host => u@host ############################################################## ### Ruleset 97 -- recanonicalize and call ruleset zero ### ### (used for recursive calls) ### ############################################################## S`'97 R$* $: $>3 $1 R$* $@ $>0 $1 ###################################### ### Ruleset 0 -- Parse Address ### ###################################### S0 R<@> $#_LOCAL_ $: <@> special case error msgs R$* : $* ; <@> $#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses" R<@ $+> $#error $@ 5.1.1 $: "user address required" R$* $: <> $1 R<> $* < @ [ $+ ] > $* $1 < @ [ $2 ] > $3 R<> $* <$* : $* > $* $#error $@ 5.1.1 $: "colon illegal in host name part" R<> $* $1 R$* < @ . $* > $* $#error $@ 5.1.2 $: "invalid host name" ifdef(`_MAILER_smtp_', `# handle numeric address spec R$* < @ [ $+ ] > $* $: $>98 $1 < @ [ $2 ] > $3 numeric internet spec R$* < @ [ $+ ] > $* $#_SMTP_ $@ [$2] $: $1 < @ [$2] > $3 still numeric: send', `dnl') # now delete the local info -- note $=O to find characters that cause forwarding R$* < @ > $* $@ $>97 $1 user@ => user R< @ $=w . > : $* $@ $>97 $2 @here:... -> ... R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here R< @ $+ > $#error $@ 5.1.1 $: "user address required" R$* $=O $* < @ $=w . > $@ $>97 $1 $2 $3 ...@here -> ... # handle local hacks R$* $: $>98 $1 # handle virtual users define(`X', ifdef(`VIRTUSER_TABLE', `', `#'))dnl X`'R$+ < @ $=w . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . > X`'R< @ > $+ < @ $+ . > $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . > X`'R< @ > $+ $: $1 X`'R< error : $- $+ > $* $#error $@ $( dequote $1 $) $: $2 X`'R< $+ > $+ < @ $+ > $: $>97 $1 undefine(`X')dnl # short circuit local delivery so forwarded email works ifdef(`_MAILER_usenet_', `', `#')dnl R$+ . USENET < @ $=w . > $#usenet $: $1 handle usenet specially ifdef(`_STICKY_LOCAL_DOMAIN_', `R$+ < @ $=w . > $: < $H > $1 < @ $2 . > first try hub R< $+ > $+ < $+ > $>95 < $1 > $2 < $3 > yep .... R< > $+ + $* < $+ > $#_LOCAL_ $: $1 + $2 plussed name? R< > $+ < $+ > $#_LOCAL_ $: @ $1 nope, local address', `R$=L < @ $=w . > $#_LOCAL_ $: @ $1 special local names R$+ < @ $=w . > $#_LOCAL_ $: $1 regular local name') define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl # not local -- try mailer table lookup X`'R$* <@ $+ > $* $: < $2 > $1 < @ $2 > $3 extract host name X`'R< $+ . > $* $: < $1 > $2 strip trailing dot X`'R< $+ > $* $: < $(mailertable $1 $) > $2 lookup X`'R< $~[ : $+ > $* $>95 < $1 : $2 > $3 check -- resolved? X`'R< $+ > $* $: $>90 <$1> $2 try domain undefine(`X')dnl undivert(4)dnl ifdef(`_NO_UUCP_', `dnl', `# resolve remotely connected UUCP links (if any) ifdef(`_CLASS_V_', `R$* < @ $=V . UUCP . > $* $: $>95 < $V > $1 <@$2.UUCP.> $3', `dnl') ifdef(`_CLASS_W_', `R$* < @ $=W . UUCP . > $* $: $>95 < $W > $1 <@$2.UUCP.> $3', `dnl') ifdef(`_CLASS_X_', `R$* < @ $=X . UUCP . > $* $: $>95 < $X > $1 <@$2.UUCP.> $3', `dnl')') # resolve fake top level domains by forwarding to other hosts ifdef(`BITNET_RELAY', `R$*<@$+.BITNET.>$* $: $>95 < $B > $1 <@$2.BITNET.> $3 user@host.BITNET', `dnl') ifdef(`DECNET_RELAY', `R$*<@$+.DECNET.>$* $: $>95 < $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 $: $1 user@host.FAX', `ifdef(`FAX_RELAY', `R$*<@$+.FAX.>$* $: $>95 < $F > $1 <@$2.FAX.> $3 user@host.FAX', `dnl')') ifdef(`UUCP_RELAY', `# forward non-local UUCP traffic to our UUCP relay R$*<@$*.UUCP.>$* $: $>95 < $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 $: $1', `dnl') ifdef(`_LOCAL_RULES_', `# figure out what should stay in our local mail system undivert(1)', `dnl') # pass names that still have a host to a smarthost (if defined) R$* < @ $* > $* $: $>95 < $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 $: Unrecognized host name $2') # if this is quoted, strip the quotes and try again R$+ $: $(dequote $1 $) strip quotes R$+ $=O $+ $@ $>97 $1 $2 $3 try again # handle locally delivered names R$=L $#_LOCAL_ $: @ $1 special local names R$+ $#_LOCAL_ $: $1 regular local names ########################################################################### ### Ruleset 5 -- special rewriting after aliases have been expanded ### ########################################################################### S5 # deal with plussed users so aliases work nicely R$+ + * $#_LOCAL_ $@ $&h $: $1 R$+ + $* $#_LOCAL_ $@ $2 $: $1 + * # prepend an empty "forward host" on the front R$+ $: <> $1 define(`X', ifdef(`LUSER_RELAY', `', `#'))dnl # send unrecognized local users to a relay host X`'R< > $+ + $* $: < $L . > $( user $1 $) + $2 X`'R< > $+ $: < $L . > $( user $1 $) look up user X`'R< $* > $+ <> $* $: < > $2 $3 found; strip $L X`'R< $* . > $+ $: < $1 > $2 strip extra dot undefine(`X')dnl # handle plussed local names R< > $+ + $* $#_LOCAL_ $@ $2 $: $1 # see if we have a relay or a hub R< > $+ $: < $H > $1 try hub R< > $+ $: < $R > $1 try relay R< > $+ $@ $1 nope, give up R< local : $* > $* $: $>95 < local : $1 > $2 no host extension R< error : $* > $* $: $>95 < error : $1 > $2 no host extension R< $- : $+ > $+ $: $>95 < $1 : $2 > $3 < @ $2 > R< $+ > $+ $@ $>95 < $1 > $2 < @ $1 > ################################################################### ### Ruleset 90 -- try domain part of mailertable entry ### ################################################################### define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl S90 X`'R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4 X`'R$* <$~[ : $+ > $* $>95 < $2 : $3 > $4 check -- resolved? X`'R$* < . $+ > $* $@ $>90 $1 . <$2> $3 no -- strip & try again X`'R$* < $* > $* $: < $(mailertable . $@ $1$2 $) > $3 try "." X`'R< $~[ : $+ > $* $>95 < $1 : $2 > $3 "." found? X`'R< $* > $* $@ $2 no mailertable match undefine(`X')dnl ################################################################### ### Ruleset 95 -- canonify mailer:[user@]host syntax to triple ### ################################################################### S95 R< > $* $@ $1 strip off null relay 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< $+ > $* $#_RELAY_ $@ $1 $: $2 use unqualified mailer ################################################################### ### Ruleset CanonLocal -- canonify local: syntax ### ################################################################### SCanonLocal # 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 # handle local:user syntax R< $+ > $* <@ $* > $* $#local $@ $2@$3 $: $1 R< $+ > $* $#local $@ $2 $: $1 ################################################################### ### Ruleset 93 -- convert header names to masqueraded form ### ################################################################### S93 # handle generics database define(`X', ifdef(`GENERICS_TABLE', `', `#'))dnl X`'R$+ < @ $=G . > $: < $1@$2 > $1 < @ $2 . > @ mark X`'R$+ < @ *LOCAL* > $: < $1@$j > $1 < @ *LOCAL* > @ mark X`'R< $+ > $+ < $* > @ $: < $(generics $1 $: $) > $2 < $3 > X`'R< > $+ < @ $+ > $: < $(generics $1 $: $) > $1 < @ $2 > X`'R< $* @ $* > $* < $* > $@ $>3 $1 @ $2 found qualified X`'R< $+ > $* < $* > $: $>3 $1 @ *LOCAL* found unqualified X`'R< > $* $: $1 not found undefine(`X')dnl # special case the users that should be exposed R$=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 $M is not null ################################################################### ### Ruleset 94 -- convert envelope names to masqueraded form ### ################################################################### S94 ifdef(`_MASQUERADE_ENVELOPE_', `', `#')dnl R$+ $@ $>93 $1 ifdef(`_MASQUERADE_ENVELOPE_', `#', `')dnl R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2 ################################################################### ### Ruleset 98 -- local part of ruleset zero (can be null) ### ################################################################### S98 undivert(3)dnl undivert(9)dnl # ###################################################################### ###################################################################### ##### `##### MAILER DEFINITIONS' ##### ###################################################################### ###################################################################### undivert(7)dnl