I would like to define two relay hosts for one domain in our transport map, the primary and backup MTX so postfix will try the backup if the primary does not respond. Is this possible and what would be my syntax?
domain.com smtp:[pri-mx.domain.com] smtp:[bak-mx.domain.com] or domain.com smtp:[pri-mx.domain.com] [bak-mx.domain.com] or wrong all together...\ Thank you.
