Happy New Year... Greetings,
I too have been having a simular problem. But this is on all outgoing email. It is now up to 5x's repeating the message.
(so to eliminate the problem, I no longer mark the box to put the message on outgoing messages.)
However, I liked advertising you guys but 5xs seems a little too much.
I have looked at the Avast.ini, but I can't see what would making this repeat 5x's.
I am only checking 2 pop3 accounts (local ISP & Gmail) and using the local ISP smtp account to send all outgoing messages.
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 Thunderbird/1.0
... And ZoneAlarm Free, but with Anti-virus check and safe email turned off.
This seemed to happen after the December upgrade.
Got any Ideas??? THKS Dennis