On 2010-06-10 5:51 PM, Jerrale Gayle wrote: > smtpd_reject_unlisted_recipient = no > > Would this be better put by itself or under > smtpd_recipient_restrictions = reject_unlisted_recipient=no? > > I want to accept all mail to non-existent users, then bounce, so > that people can't probe for valid users to know wherer to start a > brute force.
Horrible idea. If you do this, and your server ever gets hit with a dictionary attack, you *will* be blacklisted, period. As others have said - google 'backscatter' for reasons why. Don't be stupid. The fact that you would even consider doing this says to me that you really need to go back to square one and read and study basic email administration before even attempting to admin your own mail server. -- Best regards, Charles
