Bob Covell wrote: > ----Question---- > What would be the best way to verify that the target mail server is alive > and if not re-route it to a "backup" mail server? > ----Scenario----
DNS. Hold on before you object!!! > Also, we are NOT wanting to perform the backup via dns. We could have > another MX with a higher weight but our goal is to have a non-published > backup mail server. You publish one MX record for your domain: rolet.com MX 1 canitbox.rolet.com Your mailertable on the MIMEDefang box looks like this: rolet.com esmtp:[back-end.rolet.com] You then run a local nameserver on the MIMEDefang box that *only* the MIMEDefang box uses. You publish a private zone (visible only to the MIMEDefang box) that looks like this: back-end.rolet.com MX 1 preferred.back-end.rolet.com back-end.rolet.com MX 10 backup.back-end.rolet.com Presto! Works like magic. :-) (You don't need an actual private nameserver if you use bind 9. You can do the same thing with "views".) Regards, David. _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
