User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040707 Firefox/0.9.2 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040707 Firefox/0.9.2 All mails are moved in junk mail folder. Exemple : The account information mail from bugzilla , was moved in Junk folder Reproducible: Always Steps to Reproduce: 1. 2. 3. I check "Adaptive Filter" I have this error on a new Thunderbird installation.
You have to train the junk mail classifier before obtaining the desired results. You should always check the Junk folder and mark the legitimate messages as not junk, and mark the messages the reach your inbox but are junk appropriately. After a while you will have to change the marking only for a few messages. Remember that this tool cannot be perfect.
*** This bug has been marked as a duplicate of 250470 ***