RE: Forward all mails to other server, how?

Hello.

From: Jimmy Spam [mailto:[email protected]] 

>From my clients, all connections arrive to MS:192.168.1.2:25 or 587 port
directly. MS >should forward all mails to GW: 192.168.1.1:25. GW filter and
redirect to MS: >192.168.1.2:X and finally, MS delivery the mail to internal
or external user.

>The problem is: How can I forward incoming MS mail to GW?

As mentioned smtp-routes may help you.
But maybe another approach is acceptable for you.

In our installation we do a spam and an optional virus scan ( user based
option )
on every incoming mail. For that we use the QUMAILQUEUE feature and simscan
which than makes a stream connection to our spamassassin farm.

This gives us the possibility to have a general spam score and an additional
score for SMTP-authed connection. But in the end every mail gets a
spamassassin
header and a score.

Additional, based on user decision saved in the ldap mail gets scanned for 
viruses at smtp-time or afterwards if it is not spam by directing it to
different virus scanner hosts. This is done by maildrop and a normal smtp
transfer. Virus scanner hosts have just one mailroute to our primary mail
system.

SMTP-time scanning uses stream connects through a patched simscan and
clamd-stream-client as we do not want clamd to run on our mailserver,
so we use an extra clamd farm. 

For the smtp-authed score we have changed simscans --enable-spam-auth-user
option not to let mails through unscanned but to add a additional score
to the base score which is transported by an env-var and set through
qmail-smtpd env.

Well, that all is a bit more complex but provides us a very flexible grade
on individual settings.

Greets
Phil.