Hi, Is there any kind of plugin or patch for spamassassin that will allow me to selectively turn on GREYLISTing for certain user accounts?
When I say greylist I mean: All e-mail coming into them is bounced with a temporary error the first time, and then accepted the second time. If accepted (ie sent a second time) it is then put in a database of valid e-mail accounts for the next 60 days (or until another e-mail is received). This has the potential to greatly reduce spam since spammers don't usually try to send mail again, however I don't want to roll this out on a server wide setup, but rather would like to do it on a per-user basis. Any thoughts? ~ Matt