I'm a sys admin and I set up an IMAP account to clean up the email on the server. What is a good IMAP Spam Filter that will work with Thunderbird/Outlook? Thanks.
Hi,
I don't know if its' too late, but you could try SpamDrain spam filtering service. It works for IMAP/POP3 accounts regardless of which e-mail client. So it also works with Thunderbird.