From Bugzilla Helper: 
User-Agent: Mozilla/5.0 (compatible; Konqueror/3.0.0; Linux) 
 
Description of problem: 
/etc/mail/mailertable entries are recognised for local email. However, when email is 
received from a remote host the 'check_rcpt' rule-set is triggered. This rule-set does 
not check against any mailertable entries and therefore does not regard the domains 
listed in mailertable as local. A relaying denied error is then produced. 
 
Version-Release number of selected component (if applicable): 
8.11.6-3 
 
How reproducible: 
Always 
 
Steps to Reproduce: 
1. Configure a mailertable entry (virtual.com procmail:/etc/procmail.rc) that passes 
mail for virtual.com to procmail (in mail filter mode) for delivery. 
 
2. Verify that sendmail resolves this correctly as follows: 
 sendmail -bt 
 > 3,0 someone 
 
3. From the local machine send mail to someone and confirm via the maillog 
that the procmail recipe specified in mailertable was correctly selected as the 
delivery agent. It is not necessary to see the mail all the way through to delivery, 
however, with a correctly configured procmail.rc the username can be picked up as an 
argument to the procmail recipe and mail can manipulated before delivery to a 'virtual' 
user. 
 
4. From a remote machine send mail to the machine configured above (using mail -v).  
  
 
Actual Results:  It can be seen that the RCPT message results in a rejection. Examining 
the sendmail logs indicates the rejection originates from the check_rcpt rule-set. 
 
Expected Results:  The check_rcpt rule-set should have recognised the virtual.com 
domain as being local because there is a mailertable entry for it present. 
 
Additional info: 
 
Within the Basic_check_rcpt rule-set... 
 
# authenticated by a trusted mechanism? 
R$*                     $: $1 $| $&{auth_type} 
R$* $|                  $: $1 
R$* $| $={TrustAuthMech}        $# RELAYAUTH 
R$* $| $*               $: $1 
# anything terminating locally is ok 
R$+ < @ $=w >           $@ RELAYTO 
R$+ < @ $* $=R >        $@ RELAYTO 
R$+ < @ $+ >            $: $>LookUpDomain <$2> <?> <$1 < @ $2 >> <+To> 
R<RELAY> $*             $@ RELAYTO 
R<$*> <$*>              $: $2 
 
The following additional lines resolve the problem... 
 
R$+ < @ $* >            $: <>$( mailertable $1 $) < @ $2 > $| 
R<>$*                   $@ RELAYTO