Thanks Dan & Eric!
Went ahead and did it on the backups as well & added the ips to the
whilelist at the primary servers. Looks great so far!
Cheers!
Scott
Eric Shubert wrote:
Spamdyke needs to be on the perimeter (connected to the remote/sending
server) in order to be effective. This is because most of what it does
hinges on the remote/sending server's IP address, which is different
for messages coming from the backup MX.
Some spammers target MX hosts with lower/lowest priority, as they
sometimes don't have as strong of spam filtering in place.
So yes, you should by all means have spamdyke installed on backup MX
servers.
The only reason I can think of to not have spamdyke installed would be
for efficiency if it's not really needed. Even then though, I think
that spamdyke's efficient enough that the difference between having it
and not would be negligible.
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