Fallback MX

["Rodolfo J. Paiz" <rpaiz indahaus com>]

Hi, all:

I have two servers: mail1 and mail2. I want mail2 to function only as a 
backup when mail1 is down, receiving and spooling mail then sending it 
automatically to mail1 when it comes back up. What I have found is:

1. Create MX 10 for mail1 and MX 20 for mail2 (all domains); this way mail 
will find its way to mail2 if mail1 is down.

2. Now, what to do on mail2? Do I add the domains to "relay-domains" only, 
or also to "local-host-names"? Any other sendmail config I need to do?

Thanks in advance, everyone...


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Rodolfo J. Paiz
rpaiz indahaus com