How to integrate Thunderbird with SpamAssassin running on the server?
You should be able to configure Thunderbird's Junk button behavior to fit your needs. Two steps are required:
- Go to
Tools | Options | Security | Junk(or on OSX,Preferences | Security) and tickWhen I mark messages as junk:andMove them to the account's "Junk" folder - Go to
Tools | Account Settings..., locate your mail account and proceed toJunk Settingsfor that account. ChoseMove new messages to Other:and select the desired IMAP folder.
Reference: https://support.mozillamessaging.com/en-US/kb/thunderbird-and-junk-spam-messages