From: Harakiri (harakiri_23yahoo.com)
Date: Thu Apr 24 2008 - 04:49:53 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Hello,

it seems it is not directly possible to define
fallback IPs for transport map. (only if no local user
can be found but not for internal relay/firewall
scenario)

I.e. postfix is the server which is defined in the MX
record - for internal delivery to different interal
domains a transport map is defined (incoming mail from
internet) - but what if mydomain.com:192.168.0.1:25 is
not available - i.e. the next hop either mailserver or
anti-spam server?

It would be great if you could just comma separate
multiple next hop addresses if the first fails, try
the second ie.

example.com:192.168.0.1:25,192.168.0.2:25 etc

or - postfix behaviour would be that if you define
multiple transport map files in the main.cf postfix
tries the first IP in the first file, if it fails the
second postfix transport map will be used and so on
for each domain.

Currently the only workaround i see is to install a
DNS server on the postfix machine and configure MX
records for internal domains - i.e. in the transport i
define relay:intranet.mail for each domain and in bind
config i define

mx1 IN A 192.168.0.1
mx2 IN A 192.168.0.2
intranet.mail. IN MX 10 mx1
intranet.mail. IN MX 20 mx2

Any other solution?

      ____________________________________________________________________________________
Be a better friend, newshound, and
know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]