I have one problem with Zimbra + heartbeat + drbd. Everything works fine, but sometimes outgoing mails goes to Spam folder on server of recipient.
Problem is in this mail header (ip address and domain name changed):
Received: from mail.domain.tld (zimbra1.domain.tld [192.168.1.2])
by mail.recipient.tld (Postfix) with ESMTP id C0AF18552E5
for <firstname.lastname@example.org>; Tue, 5 Oct 2010 11:00:41 +0200 (CEST)
Heartbeated ip adres is 192.168.1.3, but ip address 192.168.1.2 is native ip address on outgoing interface (and zimbra1.domain.tld is dns record for this native ip address).
This is a problem for some antispam solution
Is there a way, how to use heartbeated ip address for outgoing connection (one solution is nat, but ... )?