Comment 1 for bug 205455

I have observed the same behavior on Thunderbird 2.0.0.12 for Windows when I top-post with my signature above the quoted message.

I'm not sure if this is a bug or not. If I add "-- "+(newline) to my signature block and then send the email to myself as the recipient I get the message back and Thunderbird treats everything below the "-- " as the signature - including the quoted message. Leaving out the "-- " when top posting a reply does not cause that issue.