User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 A new feature to send a message to the sender of the currently selected messages, faking a mailer-daemon delivery status message. This is a convinient way to try to let the sender know that the mailbox is not avialable (although it is). Thoughts: The feature would reside in the menu "Message" as "Reject". Upon activating, it will start up the composer with: 1. a pre-made delivary-status message (multipart/report with text/plain, message/delivery-status and text/rfc822-headers parts) 2. the the To: field filled out with the return path The content of the message would be any like the popular sendmail default message, like "The original message was received at <date of the received message> from mail.xyz.com ---- The following addresses permanent fatal errors ---- myaccount@mydomain.com ---- Transcript of session follows ---- myaccount: Mailbox does not exist 550 <myaccount@mydomain.com>... User unknown" This part should be from a template, a default one like this shipped with mozilla; but exchangeable by the user (just like signatures). The other parts should be reassembled to make the remote end think this user is what the messages says: unknown. Reproducible: Always Steps to Reproduce:

*** This bug has been marked as a duplicate of 12916 ***

*** This bug has been marked as a duplicate of 109330 ***

*** This bug has been marked as a duplicate of 109930 ***