Another approach is to try using callouts. I have my "spam" gateway verify both the recipient (callforward) and the sender (callback). Exim 4 impements caching of checked addresses to reduce load, and random address checks to ensure that a sending MTA doesn't give you bogus answers.
It has the advantage of working with any MTA that can be configured to verify the recipient durring the SMTP connection. I eliminate about 50% of my spam with these checks alone, and I perform them before I ever invoke SA. mail-56 wrote: > > Use LDAP or the like for a centralized user database if your MTA supports > mail routing via this. > > - Nicolai > > -- View this message in context: http://www.nabble.com/Email-Probs-tf2704101.html#a7547275 Sent from the SpamAssassin - Users mailing list archive at Nabble.com.
