virtual domains question

[Andrzej Filip]

Didi Rieder wrote:
> I'd like to set up cyrus with some virtual domains using sendmail as MTA.
> 
> How do I configure sendmail such that messages to addresses like
> first.last at virt.domain.com
> will be delivered to the mailbox "username" in the virtual domain?
> 
> right now I use the cyrusv2.m4 from 
> <http://anfi.homeunix.net/sendmail/cyrusv2.html>
> 
> in the mailertable I have entries like this:
> virt.domain.com    cyrusv2d:/var/imap/socket/lmtp
> 
> but it seems that messages will not be delivered to the users mailbox.
> 
> [mail]# sendmail -C sendmail.cf -bv first.last at virt.domain.com
> first.last at virt.domain.com... deliverable: mailer cyrusv2d, host 
> /var/imap/socket/lmtp, user first.last at virt.domain.com
> 
> How can I resolve first.last to username? (aliases don't work: I have 
> identical first.last in multiple domains)

You can choose from two known options:

1) "Classic" recommendation:
Use virtusertable for non local email domains (sendmail-8.10+).

*.mc file:
LOCAL_CONFIG
F{VirtHost}/etc/mail/virtual-domains

/etc/mail/virtual-domains file:
virt.domain.com

virtusertable file (needs recompilation using makemap):
first.last at virt.domain.com  username at virt.domain.com

URL(s):
http://www.sendmail.org/m4/features.html#virtusertable
WARNING: Before using VIRTUSER_DOMAIN or VIRTUSER_DOMAIN_FILE read 
*CAREFULLY* about their side effects.

2) Another alternative:
Turn on aliases on cyrusv2d mailer (add F=A flag)

*.mc file:
dnl cyrusv2 release B - http://anfi.homeunix.net/sendmail/cyrusv2.html
MODIFY_MAILER_FLAGS(`CYRUSV2D',`+A')
MAILER(`cyrusv2')

aliases file:
first.last at virt.domain.com:  username at virt.domain.com

P.S.
You can make sendmail check cyrus mailbox presence when replying to 
"RCPT TO:" - http://anfi.homeunix.net/sendmail/rtcyrus2.html

-- 
Andrzej [en:Andrew] Adam Filip anfi at priv.onet.pl anfi at xl.wp.pl
http://anfi.homeunix.net/cyrus/ http://slashdot.org/~anfi
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