[GRLUG] Sendmail as secondary (backup) MX

[Luke Stroven]

On Tue, 2006-10-31 at 16:54 -0500, Benjamin Eavey wrote:
> This would work if I were in control of the other mail servers, but
> I'm 
> not.  I'm just acting as a backup in case the other servers are down,
> to 
> make sure mail will be queued up.  The other mail servers have their
> own 
> admins who don't communicate with me when they add and remove users.
>  


Well if you don't have control over the other servers, you could try
something like milter-ahead. For each email it checks the destination to
see if it would accept the email before accepting the mail itself.

http://www.milter.info/sendmail/milter-ahead/

-luke 
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