On Sep 7, 2005, at 8:01 AM, David wrote:
My question is: if mail.backup.dom receives e-mail intended test.com,
how
does it decide that the mail should go to mail.master.dom? ie. does
the DNS
data override all /control/locals entries (_and_
/control/virtualdomains)?
or, will it be the case that even if mail.backup.dom is _not_ primary
mx for
test.com (as in my little example above), will it still check
/control/rcpthosts and/or /control/virtualdomains and, if an entry is
found
in there for test.com, deliver it locally?
What I am trying to investigate is the possibility of true backup
mailserver
takover; ie. something better than silently queing my mail on a backup
mx
when the primary is offline. But if the DNS data overrides
/control/rcpthosts and /control/virtualdomains, then my quest is
pointless... I'll never be able to make a simple configuration change
on the
fly and have my backup mx become my primary mx without modifying my DNS
(which I want to avoid at all costs, as it takes so long for the
changes to
take effect as to be pointless).
If the domain is only in rcpthosts, then your backup will queue it and
continue trying to deliver to the primary server.
If you have it in virtualdomains, then qmail should deliver it locally
to that machine. Of course, you need to figure out how to keep mail
and configuration information synchronized between the servers if you
go that route.
-Tom
