User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 Build ID: 20110928224508 Steps to reproduce: * Server foo.com forwards all mail for mail@foo.com to me@bar.com * Setup IMAP-Account for me@bar.com * Create two identities: + Main identity: mail@foo.com + second identity: me@bar.com * Receive mail for mail@foo.com delivered to me@bar.com from a mailing list. Header information: + Delivered to: me@bar.com + Received: for mail@foo.com + X-Original-To: list@server.com * Focus this mail * Press "Reply to List" or Ctrl+Shift+L Actual results: Compose window opens with second account identity (me@bar.com) preselected which the mail was delivered to. Since the address listed in the mailing list is the address in Received-header, my mail gets rejected by the mailing list when replying (if I don't notice the wrong identity before sending). This occurs both in Thunderbird 7.0 and today's Daily 10.0a1. Expected results: The correct identity (Received: for mail@foo.com) should be filled in as it does when using normal reply function.