Thanks, unless I'm missing something important (I do from time -to-time), the "import" function for "Mail" is limited to "Communicator x, Outlook, and a few others, a method to import from Thunderbird (itself so to speak) isn't there. Now this hasn't been a problem in the past, as recent as December I put a new Dell PC into service for my wife, and copied her Thunderbird mail files (just a copy) into the Mail folder on the new PC, worked fine. Has worked for me in the past too, but not this time. I've put some considerable effort since posting this thread, and still haven't figured it out (there should not be a need to "import" or otherwise "map" protocols, the protocol/coding is the same one copy of Thunderbird to the next). This time I am working form a backup file, not he old application of TB, I may have done something wrong in the backup step. I also find it strange that the subject isn't addressed on the Mozilla/TB help forum. The subject is addressed, my difficulty isn't.

Have you made any progress?

When the target e-mail is opened in the upper right corner of the the viewing pane there are four radio buttons. One is Forward. Click on it. In the appearing e-mail all you have to do is address it. DA

Maybe, Open TB. In the Account Bar in the left pane right click on the target account, i.e. shaddy@yahoo.xxx. Select Settings. In the right pane of the appearing window is a signature text box. Google produced this expanded information using keywords "thunderbird signature" (sans quotes). Here is a link that might be useful: Mozilla This post was edited by damccoy on Fri, May 31, 13 at 19:33