Bowie Bailey wrote: > Joseph L. Casale wrote: >> >> 2. I use backup mx's, my current solution probably could work in this >> scenario but >> the support mechanism behind it is *very* weak and I can't get a perfect >> setup >> working. Spam hits the primary for a domain, gets blocked and then tries my >> secondary >> which sometimes accepts it, after which the primary always accepts from the >> secondary. >> > > If you have a secondary mx, it MUST have the same (if not more > aggressive) spam prevention as your primary for this exact reason. You > also need to make sure that the secondary can reject mail for > non-existent users so you don't send backscatter when the primary > rejects the mail. >
Personally I'd just drop the secondary mx completely and let the sending smtp server queue the mail whenever you're offline. Makes life a lot simpler. _______________________________________________ CentOS mailing list [email protected] http://lists.centos.org/mailman/listinfo/centos
