Routing outgoing mail on a dual external interface system with sendmail
First off, I'm aware of the disadvantages of sendmail over qmail and the like, but I am required to use sendmail by my boss, so I can't switch over. (A shame really, sendmail is quickly becoming my nemisis)
Alright, my internet gateway/mail server is set up with one external interface and two external interfaces. Each of the external interfaces goes to a different DSL provider. Using zebra and advanced routing, the gateway load balances between the two connections and provides fail-over abilities.
My problem is that one of the connections has much more lag and connection problems than the other, and my boss really wants e-mail transfering quick out of the chute. I'd like to make sendmail only send outgoing mail through the quicker of the two interfaces (in other words, I want to force it to use eth0 over all other connections) Also, if possible, I'd like to let sendmail fail over to the second, slower connection if the first dies.
Thank you all you sendmail gurus out there
...moved to the Linux - Netwoking forum
Last edited by mcleodnine; 11-17-2003 at 08:30 PM.