On Thu, Aug 21, 2014 at 12:37:33PM CEST, Joe Acquisto-j4 <j...@j4computers.com> said: > New to list, been using postfix for a little while. > > I would like to point a postfix install to two outbound relay's (all outbound > mail to go thru them) so that, should one be unavailable, it will attempt to > send via the other. Not "round robin" but "fail over". > > This is probably simple, but have not found a clear description of how to. > Is it as simple as adding a second IP, comma separated? >
Use a local DNS with 2 MX entries myrelay.office MX 10 IP1 myrelay.office MX 20 IP2 then use relayhost=myrelay.office (without the square brackets to have a MX resolution)
