I'm going to repeat two suggestions I made:
- Use aliases set to reject delivery to block specific usernames at your own domain which spammers are using repeatedly. If they only do it a couple of times in a month it's probably not worth the trouble to block them.
- Use the normal rules screen if at all possible (rather than custom sieve). The rules screen has many more features than in the past, and as I mentioned in my earlier post it's easy to use the "Any recipient's email" condition to catch a message no matter how it was sent (To/Cc/Bcc).
Also remember that the normal rules sieve processing order is as follows::
- Discard rules
- Spam filtering
- Forwarding rules
- Organize into folder rules
Bill