From: Wietse Venema (wietseporcupine.org)
Date: Tue Aug 05 2008 - 07:56:45 CDT

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Rudy Gevaert:
> Hi,
>
> Previously we were running postfix 2.1.5 (Debian Sarge) and now have
> upgraded to 2.3.8 (Etch).
>
> We have several lmtp transports in master.cf:
>
> mail1 unix - - n - - lmtp
> mail2 unix - - n - - lmtp
> mail3 unix - - n - - lmtp
>
> We used an ldap directory to route to the correct backend:
> umTransport: mail1:mail1.ugent.be
>
> In postfix 2.1.5 the destination port of our lmtp connections was *by
> default* 2003.

No, the built-in default LMTP TCP port was 24. However the precedence
has changed. With 2.1.5, Postfix would use lmtp_tcp_port only if
/etc/services had no entry for LMTP.

> Because we had the following entry in /etc/services:
> lmtp 2003/tcp
>
> When I did the upgrade to 2.3.8 I noticed that was not the case anymore.
> It connected to an other port (I can't remember what anymore).

The built-in default LMTP TCP port is still 24. However the precedence
has changed. The lmtp_tcp_port parameter now overrides /etc/services.
If you want to use /etc/services, you now need to specify:

    lmtp_tcp_port = lmtp

> I tried changing lmtp_tcp_port to 2003 but that didn't help.

You mis-typed something.

I think the best way out is to drop support for lmtp_tcp_port,
for consistency with SMTP.

        Wietse

> In the end
> I changed the result attribute of my ldap lookup to add the port number
> to the transport:
> result_format = %s:2003
>
> I was wondering why this was changed, or did I miss something?
>
> Thanks in advance,
> --
> -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
> Rudy Gevaert Rudy.GevaertUGent.be tel:+32 9 264 4734
> Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office
> Groep Systemen Systems group
> Universiteit Gent Ghent University
> Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be
> -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
>
>

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