Hello,
I searched the archives but am having limited success finding an answer to my problem.
It seems that more and more spammers are using the secondary/backup/store-and-forward
mail server to deliver their spam. Filtering options seem limited in this
configuration, since there are no hosts on the machine which to configure for spam
filtering.
Furthermore, it seems that even though I do not have the secondary server IP
whitelisted on the primary, spam still gets through... much to the chagrin of our
BlackBerry users.
Does anyone have a pointer to a definitive FAQ on setting up robust spam filtering
when you have a secondary mail server that's being targeted by spammers?
Thanks!
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