Randy Gordey wrote:
If I have a MX record with a president of 20 pointing to a Qmail
toaster on my DMZ.
I also have a MX Record with a lower a priority of 10 where the host
resided inside my secure LAN.
Let’s call my DMZ Qmail server- Mail Server ‘A’ and my Secure LAN
Qmail server – Mail Server ‘B’
Server ‘B’ is secured by a firewall and is limited to accepting
inbound connections only from Server ‘A’
(Internet source SMTP Mail) => (Server ‘A’) => (Server ‘B’)
I can get this architecture functioning at a basic level. My only
hang-up is I would like Server ‘A’ to filter incoming email (i.e.
spamassassin & a valid recipient check) before forwarding the mail
onto Server ‘B’. I can get forwarding to work with no filtering done
and I can filter without forwarding the email to another server. But I
can’t seem to get them booth working at the same time. I either
deliver locally after filtering or I forward and entire domain’s email
blindly.
As far as I know, there's no easy way to do this without setting up a
cluster-type system where the MySQL database would be shared, as well as
a NFS share for the vpopmail directory.
Sorry. You may be able to set Server A up with something like procmail
and/or sendmail to process the messages before forwarding them on to
Server B. This is a similar setup to what another division of our
company does for their Exchange server utilizing LDAP for address
lookups, and spam filtering before being delivered to the Exchange machine.
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