I have a cluster set-up using pacemaker/corosync and have some fail over IPs set-up. I have designated postfix to use ome of those failover IPs using:-
smtp_bind_address = aa.bb.cc.dd
However, when I send a test mail to my google a/c I'm receiving the mail from actual server ip address instead of the ip address above.
Does anyone know what could be causing this please?