User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727) Build Identifier: Mozilla Thunderbird 1.5.0.5 (20060719) Chinese Version It's not very common, but sometimes, when I want to send others a letter with an attachment, it may disappeared from the composite window, and been erased permanently for don't know why. Some letters are OK, but some letters U can try 100 times and 100 times with this mistake. Reproducible: Sometimes Steps to Reproduce: 1.I can give U a letter, which I saved as .eml 2.Open the saved mail I give U. 3.Forward it to other people. Actual Results: The composite window does not have any attachment. Expected Results: The attachment should still be in the email.

This email has a .pps file which is a game. Please try to forward the letter to others. Then see the composite window.

I could reproduce this bug if forwarding mails with files attached (wrongly) marked as spam by SpamAssassin... All other mails, not marked as spam, forward correctly with attachments attached. So I think this bug is linked to the SpamAssassin header in these mails - unfortunately I could not test this behavior with other spam-filtering software.

Can reproduce this with TB 2.0.0.12, and with Shredder Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1b3pre) Gecko/20081231 Shredder/3.0b2pre however it's a dupe. Thanks for the attachment... I will move it.