[ale] Clarification
jj at spiderentertainment.com
jj at spiderentertainment.com
Wed Oct 20 13:18:43 EDT 1999
Also make sure that you have both MX for www.linux... and for linux...
Chris Fowler wrote:
> I have a site www.linuxiceberg.com that will accept mail to
>
> username at www.linuxiceberg.com but not username at linuxiceberg.com
>
> Below is email in queue:
> ----------------------------
> P210049
> I3/2/450162
> Mhost map: lookup (linuxiceberg.com): deferred
> Fb
> $_root at localhost
> Sroot
> RPFD:cfowler at linuxiceberg.com
> ---------------------------------
>
> There is an MX record below is DNS entry:
> ---------------------------------
> > linuxiceberg.com
> Server: ns.cereus.com
> Address: 209.44.64.2
>
> linuxiceberg.com
> origin = ns.cereus.com
> mail addr = root.ns.cereus.com
> serial = 1999102010
> refresh = 10800 (3H)
> retry = 3600 (1H)
> expire = 604800 (1W)
> minimum ttl = 86400 (1D)
> linuxiceberg.com nameserver = ns.cereus.com
> linuxiceberg.com preference = 30, mail exchanger = www.linuxiceberg.com
> linuxiceberg.com nameserver = ns.cereus.com
> ns.cereus.com internet address = 209.44.64.2
> www.linuxiceberg.com internet address = 209.186.14.121
> ------------------------------------------------------
> Below is /etc/sendmail.cf
> ------------------------------------------------------
> ######################################################################
> ######################################################################
> #####
> ##### SENDMAIL CONFIGURATION FILE
> #####
> ##### built by root at porky.redhat.com on Mon Sep 21 20:54:22 EDT
> 1998
> ##### in /usr/src/bs/BUILD/sendmail-8.8.7/cf/cf
> ##### using ../ as configuration include directory
> #####
> ######################################################################
> ######################################################################
>
> ##### @(#)cfhead.m4 8.9 (Berkeley) 1/18/97 #####
> ##### @(#)cf.m4 8.24 (Berkeley) 8/16/95 #####
>
> ##### @(#)redirect.m4 8.5 (Berkeley) 8/17/96 #####
>
> ##### @(#)always_add_domain.m4 8.1 (Berkeley) 6/7/93 #####
>
> ##### @(#)use_cw_file.m4 8.1 (Berkeley) 6/7/93 #####
>
> ##### @(#)local_procmail.m4 8.6 (Berkeley) 10/20/96 #####
>
> ##### @(#)check_mail.m4 3.3 (Claus Assmann) 1997-08-05 #####
>
> ##### @(#)use_ip.m4 1.0 (Claus Assmann) 1996-11-23 #####
>
> ##### @(#)use_names.m4 1.0 (Claus Assmann) 1996-11-23 #####
>
> ##### @(#)use_relayto.m4 1.0 (Claus Assmann) 1996-11-23 #####
>
> ##### @(#)check_rcpt4.m4 2.4 (Claus Assmann) 1997-08-28 #####
>
> ##### @(#)check_relay.m4 3.0 (Claus Assmann) 1997-06-01 #####
>
> ##### @(#)proto.m4 8.151 (Berkeley) 7/31/97 #####
>
> # level 7 config file format
> V7/Berkeley
>
> ##################
> # local info #
> ##################
>
> Cwlocalhost
> # file containing names of hosts for which we receive email
> Fw/etc/sendmail.cw
>
> # my official domain name
> # ... define this only if sendmail cannot automatically determine
> your domain
> #Dj$w.linuxiceberg.com
>
> CP.
>
> # "Smart" relay host (may be null)
> DS
>
> # place to which unknown users should be forwarded
> #Kuser user -m -a<>
> #DLname_of_luser_relay
>
> # operators that cannot be in local usernames (i.e., network
> indicators)
> CO @ % !
>
> # 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)
> #Kmailertable dbm /etc/mailertable
>
> # Domain table (adding domains)
> #Kdomaintable dbm /etc/domaintable
>
> # Generics table (mapping outgoing addresses)
> #Kgenerics dbm /etc/genericstable
>
> # Virtual user table (maps incoming users)
> #Kvirtuser dbm /etc/virtusertable
>
> # who I send unqualified names to (null means deliver locally)
> DR
>
> # who gets all local email traffic ($R has precedence for unqualified
> names)
> DH
>
> # dequoting map
> Kdequote dequote
>
> # 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
> #CL root
> CE root
>
> # who I masquerade as (null for no masquerading) (see also $=M)
> DM
>
> # my name for error messages
> DnMAILER-DAEMON
>
> CPREDIRECT
>
> # file containing full e-mail addresses of spammers (for check_mail):
> # spammer at address.domain "Error-Code Error-Text"
> # or junk domains (for check_mail, check_relay):
> # junk.domain "Error-Code Error-Text"
> # or IP addresses (for check_relay):
> # D.X.Y.Z "Error-Code Error-Text"
> # C.X.Y "Error-Code Error-Text"
> # B.X "Error-Code Error-Text"
> # A "Error-Code Error-Text"
> Kjunk hash -a at JUNK /etc/mail/deny
>
> # file containing IP numbers of machines which can use our relay
> F{LocalIP} /etc/mail/ip_allow
>
> # file containing names of machines which can use our relay
> F{LocalNames} /etc/mail/name_allow
>
> # file containing names we relay to
> F{RelayTo} /etc/mail/relay_allow
>
> # Configuration version number
> DZ8.8.7
>
> ###############
> # Options #
> ###############
>
> # strip message body to 7 bits on input?
> O SevenBitInput=False
>
> # 8-bit data handling
> O EightBitMode=pass8
>
> # wait for alias file rebuild (default units: minutes)
> O AliasWait=10
>
> # location of alias file
> O AliasFile=/etc/aliases
>
> # minimum number of free blocks on filesystem
> O MinFreeBlocks=100
>
> # maximum message size
> #O MaxMessageSize=1000000
>
> # substitution for space (blank) characters
> O BlankSub=.
>
> # avoid connecting to "expensive" mailers on initial submission?
> O HoldExpensive=False
>
> # checkpoint queue runs after every N successful deliveries
> #O CheckpointInterval=10
>
> # default delivery mode
> O DeliveryMode=background
>
> # automatically rebuild the alias database?
> #O AutoRebuildAliases
>
> # error message header/file
> #O ErrorHeader=/etc/sendmail.oE
>
> # error mode
> #O ErrorMode=print
>
> # save Unix-style "From_" lines at top of header?
> #O SaveFromLine
>
> # temporary file mode
> O TempFileMode=0600
>
> # match recipients against GECOS field?
> #O MatchGECOS
>
> # maximum hop count
> #O MaxHopCount=17
>
> # location of help file
> O HelpFile=/usr/lib/sendmail.hf
>
> # ignore dots as terminators in incoming messages?
> #O IgnoreDots
>
> # name resolver options
> #O ResolverOptions=+AAONLY
>
> # deliver MIME-encapsulated error messages?
> O SendMimeErrors=True
>
> # Forward file search path
> O ForwardPath=$z/.forward.$w:$z/.forward
>
> # open connection cache size
> O ConnectionCacheSize=2
>
> # open connection cache timeout
> O ConnectionCacheTimeout=5m
>
> # persistent host status directory
> #O HostStatusDirectory=.hoststat
>
> # single thread deliveries (requires HostStatusDirectory)?
> #O SingleThreadDelivery
>
> # use Errors-To: header?
> O UseErrorsTo=False
>
> # log level
> O LogLevel=9
>
> # send to me too, even in an alias expansion?
> #O MeToo
>
> # verify RHS in newaliases?
> O CheckAliases=False
>
> # default messages to old style headers if no special punctuation?
> O OldStyleHeaders=True
>
> # SMTP daemon options
> #O DaemonPortOptions=Port=esmtp
>
> # privacy flags
> O PrivacyOptions=authwarnings
>
> # who (if anyone) should get extra copies of error messages
> #O PostMasterCopy=Postmaster
>
> # slope of queue-only function
> #O QueueFactor=600000
>
> # queue directory
> O QueueDirectory=/var/spool/mqueue
>
> # timeouts (many of these)
> #O Timeout.initial=5m
> #O Timeout.connect=5m
> #O Timeout.iconnect=5m
> #O Timeout.helo=5m
> #O Timeout.mail=10m
> #O Timeout.rcpt=1h
> #O Timeout.datainit=5m
> #O Timeout.datablock=1h
> #O Timeout.datafinal=1h
> #O Timeout.rset=5m
> #O Timeout.quit=2m
> #O Timeout.misc=2m
> #O Timeout.command=1h
> #O Timeout.ident=30s
> #O Timeout.fileopen=60s
> O Timeout.queuereturn=5d
> #O Timeout.queuereturn.normal=5d
> #O Timeout.queuereturn.urgent=2d
> #O Timeout.queuereturn.non-urgent=7d
> O Timeout.queuewarn=4h
> #O Timeout.queuewarn.normal=4h
> #O Timeout.queuewarn.urgent=1h
> #O Timeout.queuewarn.non-urgent=12h
> #O Timeout.hoststatus=30m
>
> # should we not prune routes in route-addr syntax addresses?
> #O DontPruneRoutes
>
> # queue up everything before forking?
> O SuperSafe=True
>
> # status file
> O StatusFile=/var/log/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
> #O TimeZoneSpec=
>
> # default UID (can be username or userid:groupid)
> O DefaultUser=8:12
>
> # list of locations of user database file (null means no lookup)
> #O UserDatabaseSpec=/etc/userdb
>
> # fallback MX host
> #O FallbackMXhost=fall.back.host.net
>
> # if we are the best MX host for a site, try it directly instead
> of config err
> #O TryNullMXList
>
> # load average at which we just queue messages
> #O QueueLA=8
>
> # load average at which we refuse connections
> #O RefuseLA=12
>
> # maximum number of children we allow at one time
> #O MaxDaemonChildren=12
>
> # maximum number of new connections per second
> #O ConnectionRateThrottle=3
>
> # work recipient factor
> #O RecipientFactor=30000
>
> # deliver each queued job in a separate process?
> #O ForkEachJob
>
> # work class factor
> #O ClassFactor=1800
>
> # work time factor
> #O RetryFactor=90000
>
> # shall we sort the queue by hostname first?
> #O QueueSortOrder=priority
>
> # minimum time in queue before retry
> #O MinQueueAge=30m
>
> # default character set
> #O DefaultCharSet=iso-8859-1
>
> # service switch file (ignored on Solaris, Ultrix, OSF/1, others)
> #O ServiceSwitchFile=/etc/service.switch
>
> # hosts file (normally /etc/hosts)
> #O HostsFile=/etc/hosts
>
> # dialup line delay on connection failure
> #O DialDelay=10s
>
> # action to take if there are no recipients in the message
> #O NoRecipientAction=add-to-undisclosed
>
> # chrooted environment for writing to files
> #O SafeFileEnvironment=/arch
>
> # are colons OK in addresses?
> #O ColonOkInAddr
>
> # how many jobs can you process in the queue?
> #O MaxQueueRunSize=10000
>
> # shall I avoid expanding CNAMEs (violates protocols)?
> #O DontExpandCnames
>
> # SMTP initial login message (old $e macro)
> O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
>
> # UNIX initial From header format (old $l macro)
> O UnixFromLine=From $g $d
>
> # delimiter (operator) characters (old $o macro)
> O OperatorChars=.:%@!^/[]+
>
> # shall I avoid calling initgroups(3) because of high NIS costs?
> #O DontInitGroups
>
> # are group-writable :include: and .forward files (un)trustworthy?
> #O UnsafeGroupWrites
>
> # where do errors that occur when sending errors get sent?
> #O DoubleBounceAddress
>
> # what user id do we assume for the majority of the processing?
> #O RunAsUser=sendmail
>
> ###########################
> # Message precedences #
> ###########################
>
> Pfirst-class=0
> Pspecial-delivery=100
> Plist=-30
> Pbulk=-60
> Pjunk=-100
>
> #####################
> # Trusted users #
> #####################
>
> # this is equivalent to setting class "t"
> #Ft/etc/sendmail.ct
> Troot
> Tdaemon
> Tuucp
>
> #########################
> # Format of headers #
> #########################
>
> H?P?Return-Path: <$g>
> HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
> $.by $j ($v/$Z)$?r with $r$. id $i$?u
> for $u; $|;
> $.$b
> H?D?Resent-Date: $a
> H?D?Date: $a
> H?F?Resent-From: $?x$x <$g>$|$g$.
> H?F?From: $?x$x <$g>$|$g$.
> 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@$j>
> #
>
> ######################################################################
> ######################################################################
> #####
> ##### REWRITING RULES
> #####
> ######################################################################
> ######################################################################
>
> ############################################
> ### Ruleset 3 -- Name Canonicalization ###
> ############################################
> S3
>
> # handle null input (translate to <@> special case)
> R$@ $@ <@>
>
> # strip group: syntax (not inside angle brackets!) and trailing
> semicolon
> R$* $: $1 <@> mark addresses
> R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr>
> 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 [ $3 ] <@> remark if leading colon
> R$* : $* <@> $: $2 strip colon if marked
> R$* <@> $: $1 unmark
> R$* ; $1 strip trailing semi
> R$* < $* ; > $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 <>
>
> # make sure <@a, at b, at c:user at 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 <route-addr>
>
> # 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 > $4 nix colons in addrs
>
> # convert old-style addresses to a domain-based address
> R$- ! $+ $@ $>96 $2 < @ $1 .UUCP > resolve uucp names
> R$+ . $- ! $+ $@ $>96 $3 < @ $1 . $2 > domain uucps
> R$+ ! $+ $@ $>96 $2 < @ $1 .UUCP > uucp subdomains
>
> # if we have % signs, take the rightmost one
> R$* % $* $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 . > $2 local domain
> R$* < @ 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 > $3 canon IP addr
>
> # look up domains in the domain table
> #R$* < @ $+ > $* $: $1 < @ $(domaintable $2 $) > $3
>
> # if really UUCP, handle it immediately
>
> # try UUCP traffic as a local address
> R$* < @ $+ . UUCP > $* $: $1 < @ $[ $2 $] . UUCP . > $3
> R$* < @ $+ . . UUCP . > $* $@ $1 < @ $2 . > $3
>
> # pass to name server to make hostname canonical
> R$* < @ $* $~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 . > $3
> R$* < @ $* $=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 <route-addr> canonical
> R@ $* $@ @ $1 ... and exit
>
> # UUCP must always be presented in old form
> R$+ @ $- . UUCP $2!$1 u at h.UUCP => h!u
>
> # delete duplicate local names
> R$+ % $=w @ $=w $1 @ $2 u%host at host => u at host
>
> ##############################################################
> ### Ruleset 97 -- recanonicalize and call ruleset zero ###
> ### (used for recursive calls) ###
> ##############################################################
>
> S97
> R$* $: $>3 $1
> R$* $@ $>0 $1
>
> ######################################
> ### Ruleset 0 -- Parse Address ###
> ######################################
>
> S0
>
> R$* $: $>Parse0 $1 initial parsing
> R$* $: $>98 $1 handle local hacks
> R$* $: $>Parse1 $1 final parsing
>
> SParse0
> 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 $: "invalid host name"
> R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "invalid host name"
>
> # handle numeric address spec
> R$* < @ [ $+ ] > $* $: $>98 $1 < @ [ $2 ] > $3 numeric internet
> spec
> R$* < @ [ $+ ] > $* $#esmtp $@ [$2] $: $1 < @ [$2] > $3 still
> numeric: send
>
> # now delete the local info -- note $=O to find characters that
> cause forwarding
> R$* < @ > $* $@ $>Parse0 $>3 $1 user@ => user
> R< @ $=w . > : $* $@ $>Parse0 $>3 $2 @here:... -> ...
> R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
> R< @ $+ > $#error $@ 5.1.1 $: "user address required"
> R$* $=O $* < @ $=w . > $@ $>Parse0 $>3 $1 $2 $3 ... at here -> ...
>
> SParse1
> # handle virtual users
> #R$+ < @ $=w . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1
> < @ $2 . >
> #R<@> $+ + $* < @ $* . >
> $: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3
> . >
> #R<@> $+ + $* < @ $* . >
> $: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
> #R<@> $+ < @ $+ . > $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 <
> @ $2 . >
> #R<@> $+ $: $1
> #R< error : $- $+ > $* $#error $@ $( dequote $1 $) $: $2
> #R< $+ > $+ < @ $+ > $: $>97 $1
>
> # short circuit local delivery so forwarded email works
> #R$+ . USENET < @ $=w . > $#usenet $: $1 handle usenet specially
> R$=L < @ $=w . > $#local $: @ $1 special local names
> R$+ < @ $=w . > $#local $: $1 regular local name
>
> # not local -- try mailer table lookup
> #R$* <@ $+ > $* $: < $2 > $1 < @ $2 > $3 extract host name
> #R< $+ . > $* $: < $1 > $2 strip trailing dot
> #R< $+ > $* $: < $(mailertable $1 $) > $2 lookup
> #R< $~[ : $+ > $* $>95 < $1 : $2 > $3 check -- resolved?
> #R< $+ > $* $: $>90 <$1> $2 try domain
>
> # resolve remotely connected UUCP links (if any)
>
> # resolve fake top level domains by forwarding to other hosts
>
> # pass names that still have a host to a smarthost (if defined)
> R$* < @ $* > $* $: $>95 < $S > $1 < @ $2 > $3 glue on smarthost
> name
>
> # deal with other remote names
> R$* < @$* > $* $#esmtp $@ $2 $: $1 < @ $2 > $3 user at host.domain
>
> # if this is quoted, strip the quotes and try again
> R$+ $: $(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
>
> # send unrecognized local users to a relay host
> #R< > $+ $: < $L . > $( user $1 $) look up user
> #R< $* > $+ <> $* $: < > $2 $3 found; strip $L
> #R< $* . > $+ $: < $1 > $2 strip extra dot
>
> # see if we have a relay or a hub
> R< > $+ $: < $H > $1 try hub
> R< > $+ $: < $R > $1 try relay
> R< > $+ $: < > < $1 $(dequote "" $&h $) > nope, restore +detail
> R< > < $+ + $* > $* < > < $1 > + $2 $3 find the user part
> R< > < $+ > + $* $#local $@ $2 $: @ $1 strip the extra +
> R< > < $+ > $@ $1 no +detail
> R$+ $: $1 $(dequote "" $&h $) add +detail back in
> 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 < @ $1 >
>
> ###################################################################
> ### Ruleset 90 -- try domain part of mailertable entry ###
> ###################################################################
>
> S90
> #R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2
> $) > $4
> #R$* <$~[ : $+ > $* $>95 < $2 : $3 > $4 check -- resolved?
> #R$* < . $+ > $* $@ $>90 $1 . <$2> $3 no -- strip & try again
> #R$* < $* > $* $: < $(mailertable . $@ $1$2 $) > $3 try "."
> #R< $~[ : $+ > $* $>95 < $1 : $2 > $3 "." found?
> #R< $* > $* $@ $2 no mailertable match
>
> ###################################################################
> ### 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 at host syntax -- ignore host part
> R< $+ @ $+ > $* < @ $* > $: < $1 > $3 < @ $4 >
>
> # handle local:user syntax
> R< $+ > $* <@ $* > $* $#local $@ $2@$3 $: $1
> R< $+ > $* $#local $@ $2 $: $1
>
> ###################################################################
> ### Ruleset 93 -- convert header names to masqueraded form ###
> ###################################################################
>
> S93
>
> # handle generics database
> #R$+ < @ $=G . > $: < $1@$2 > $1 < @ $2 . > @ mark
> #R$+ < @ *LOCAL* > $: < $1@$j > $1 < @ *LOCAL* > @ mark
> #R< $+ > $+ < $* > @ $: < $(generics $1 $: $) > $2 < $3 >
> #R< > $+ < @ $+ > $: < $(generics $1 $: $) > $1 < @ $2 >
> #R< $* @ $* > $* < $* > $@ $>3 $1 @ $2 found qualified
> #R< $+ > $* < $* > $: $>3 $1 @ *LOCAL* found unqualified
> #R< > $* $: $1 not found
>
> # special case the users that should be exposed
> R$=E < @ *LOCAL* > $@ $1 < @ $j . > leave exposed
> R$=E < @ $=M . > $@ $1 < @ $2 . >
> R$=E < @ $=w . > $@ $1 < @ $2 . >
>
> # handle domain-specific masquerading
> R$* < @ $=M . > $* $: $1 < @ $2 . @ $M > $3 convert masqueraded
> doms
> R$* < @ $=w . > $* $: $1 < @ $2 . @ $M > $3
> R$* < @ *LOCAL* > $* $: $1 < @ $j . @ $M > $2
> R$* < @ $+ @ > $* $: $1 < @ $2 > $3 $M is null
> R$* < @ $+ @ $+ > $* $: $1 < @ $3 . > $4 $M is not null
>
> ###################################################################
> ### Ruleset 94 -- convert envelope names to masqueraded form ###
> ###################################################################
>
> S94
> #R$+ $@ $>93 $1
> R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2
>
> ###################################################################
> ### Ruleset 98 -- local part of ruleset zero (can be null) ###
> ###################################################################
>
> S98
>
> # addresses sent to foo at host.REDIRECT will give a 551 error code
> R$* < @ $+ .REDIRECT. > $: $1 < @ $2 . REDIRECT . > < ${opMode}
> >
> R$* < @ $+ .REDIRECT. > <i> $: $1 < @ $2 . REDIRECT. >
> R$* < @ $+ .REDIRECT. > < $- > $# error $@ 5.1.1 $: "551 User
> has moved; please try " <$1@$2>
>
> # check for junk domain/spammers
> Sjunk
> # lookup domain in database
> R$*<@$+> $:$1<@$(junk $2$)>
> # exists? return
> R$*<@$*@JUNK> $@$1<@$2 at JUNK>
> # lookup address in database
> R$*<@$+> $:$1<@$(junk $1@$2 $:$2$)>
> # exists? return
> R$*<@$*@JUNK> $@$1<@$2 at JUNK>
> # remove one subdomain, try again
> R$*<@$-.$-.$+> $: $>junk $1<@$3.$4>
>
> Scheck_mail
> # don't check these
> R<$*@$=w> $@ ok shortcut
> # idea from Steven Schultz
> R<> $: <$n @ $(dequote "" $&{client_name} $) >
>
> # remove at least the dot...
> R<$*@$*.> <$1@$2>
> R$* $: $>3 $1 canonify
> R$- $@ ok
> # no host without a . in the FQHN ?
> R$*<@$->$* $#error $@ 5.1.8 $: 551 invalid host name $2, check
> your configuration.
> # lookup IP address (reverse mapping available?)
> #R$*<@[$-.$-.$-.$-]>$* $: $1 < @ $[ [ $2.$3.$4.$5 ] $] > $6
> # copy the result of the lookup
> R$* $:$1 $| $1
> # now remove the dot
> R$* $| $*<@$*.>$* $: $1 $| $2<@$3>$4
> # and check the database
> R$* $| $*<@$*>$* $: $1 $| $>junk $2<@$3>
> # match: return given error code (rhs of map)
> R$* $| $*<@$*@JUNK>$* $#error $@ 5.7.1 $: $3
> # restore original value (after canonicalization by ruleset 3)
> R$* $| $* $: $1
> # this is dangerous! no real name
> # (see RFC 1123,sections 5.2.2 and 5.2.18)
> #R$*<@$*$~P>$* $#error $@ 4.1.8 $: 451 unresolvable host name
> $2$3, check your setup.
>
> Scheck_rcpt
> # first: get client address
> R$+ $: $(dequote "" $&{client_addr} $) $| $1
> R0 $| $* $@ ok client_addr is 0 for sendmail -bs
> R$={LocalIP}$* $| $* $@ ok from here
> # next: get client name
> R$* $| $+ $: $(dequote "" $&{client_name} $) $| $2
> R $| $* $@ ok no client name: directly invoked
> #R$- $| $* $@ ok for those without full DNS...
> R$*$=w $| $* $@ ok from here
> R$*$={LocalNames} $| $* $@ ok from allowed system
> # now check other side
> R$* $| $* $: $>3 $2
> # remove local part
> R$*<@$+.>$* $: $>remove_local $1<@$2.>$3
> # still something left?
> R$*<@$+>$* $#error $@ 5.7.1 $: 551 we do not relay
>
> Sremove_local
> # remove RelayTo part (maybe repeatedly)
> R$*<@$*$={RelayTo}.>$* $>3 $1 $4
> R$*<@$=w.>$* $: $>remove_local $>3 $1 $3
>
> SjunkIP
> # lookup IP in database
> # full IP address
> R$-.$-.$-.$- $: $(junk $1.$2.$3.$4 $)
> # class C net
> R$-.$-.$-.$- $: $(junk $1.$2.$3 $: $1.$2.$3.$4 $)
> # class B net
> R$-.$-.$-.$- $: $(junk $1.$2 $: $1.$2.$3.$4 $)
> # class A net
> R$-.$-.$-.$- $: $(junk $1 $: $1.$2.$3.$4 $)
>
> Scheck_relay
> # check IP
> R$+ $| $+ $: $1 $| $>junkIP $2
> R$+ $| $*@JUNK $#error $@ 5.7.1 $: $2
> # check hostname
> R$+ $| $+ $: $>junk <@$1>
> R$*<@$*@JUNK>$* $#error $@ 5.7.1 $: $2
> #
>
> ######################################################################
> ######################################################################
> #####
> ##### MAILER DEFINITIONS
>
> #####
> ######################################################################
> ######################################################################
>
> ######################*****##############
> ### PROCMAIL Mailer specification ###
> ##################*****##################
>
> ##### @(#)procmail.m4 8.6 (Berkeley) 4/30/97 #####
>
> Mprocmail, P=/usr/bin/procmail, F=DFMSPhnu9, S=11/31, R=21/31,
> T=DNS/RFC822/X-Unix,
> A=procmail -Y -m $h $f $u
>
> #####################################
> ### SMTP Mailer specification ###
> #####################################
>
> ##### @(#)smtp.m4 8.33 (Berkeley) 7/9/96 #####
>
> Msmtp, P=[IPC], F=mDFMuX, S=11/31, R=21, E=\r\n, L=990,
> T=DNS/RFC822/SMTP,
> A=IPC $h
> Mesmtp, P=[IPC], F=mDFMuXa, S=11/31, R=21, E=\r\n, L=990,
> T=DNS/RFC822/SMTP,
> A=IPC $h
> Msmtp8, P=[IPC], F=mDFMuX8, S=11/31, R=21, E=\r\n, L=990,
> T=DNS/RFC822/SMTP,
> A=IPC $h
> Mrelay, P=[IPC], F=mDFMuXa8, S=11/31, R=61, E=\r\n, L=2040,
> T=DNS/RFC822/SMTP,
> A=IPC $h
>
> #
> # envelope sender rewriting
> #
> S11
> R$+ $: $>51 $1 sender/recipient common
> R$* :; <@> $@ list:; special case
> R$* $: $>61 $1 qualify unqual'ed names
> R$+ $: $>94 $1 do masquerading
>
> #
> # envelope recipient rewriting --
> # also header recipient if not masquerading recipients
> #
> S21
> R$+ $: $>51 $1 sender/recipient common
> R$+ $: $>61 $1 qualify unqual'ed names
>
> #
> # header sender and masquerading header recipient rewriting
> #
> S31
> R$+ $: $>51 $1 sender/recipient common
> R:; <@> $@ list:; special case
>
> # do special header rewriting
> R$* <@> $* $@ $1 <@> $2 pass null host through
> R< @ $* > $* $@ < @ $1 > $2 pass route-addr through
> R$* $: $>61 $1 qualify unqual'ed names
> R$+ $: $>93 $1 do masquerading
>
> #
> # convert pseudo-domain addresses to real domain addresses
> #
> S51
>
> # pass <route-addr>s through
> R< @ $+ > $* $@ < @ $1 > $2 resolve <route-addr>
>
> # output fake domains as user%fake at relay
>
> # do UUCP heuristics; note that these are shared with UUCP mailers
> R$+ < @ $+ .UUCP. > $: < $2 ! > $1 convert to UUCP form
> R$+ < @ $* > $* $@ $1 < @ $2 > $3 not UUCP form
>
> # leave these in .UUCP form to avoid further tampering
> R< $&h ! > $- ! $+ $@ $2 < @ $1 .UUCP. >
> R< $&h ! > $-.$+ ! $+ $@ $3 < @ $1.$2 >
> R< $&h ! > $+ $@ $1 < @ $&h .UUCP. >
> R< $+ ! > $+ $: $1 ! $2 < @ $Y > use UUCP_RELAY
> R$+ < @ $+ : $+ > $@ $1 < @ $3 > strip mailer: part
> R$+ < @ > $: $1 < @ *LOCAL* > if no UUCP_RELAY
>
> #
> # common sender and masquerading recipient rewriting
> #
> S61
>
> R$* < @ $* > $* $@ $1 < @ $2 > $3 already fully qualified
> R$+ $@ $1 < @ *LOCAL* > add local qualification
>
> #
> # relay mailer header masquerading recipient rewriting
> #
> S71
>
> R$+ $: $>61 $1
> R$+ $: $>93 $1
>
> ##################################################
> ### Local and Program Mailer specification ###
> ##################################################
>
> ##### @(#)local.m4 8.23 (Berkeley) 5/31/96 #####
>
> Mlocal, P=/usr/bin/procmail, F=lsDFMAw5:/|@qSPfhn9, S=10/30,
> R=20/40,
> T=DNS/RFC822/X-Unix,
> A=procmail -Y -a $h -d $u
> Mprog, P=/bin/sh, F=lsDFMoqeu9, S=10/30, R=20/40, D=$z:/,
> T=X-Unix,
> A=sh -c $u
>
> #
> # Envelope sender rewriting
> #
> S10
> R<@> $n errors to mail
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