As many know, Microsoft has blundered with their attachments. Some exchange servers send attachments in a proprietary TNEF format. Tried some tools, inluding a plug-in called LookOut for Thunderbird. No dice, remains undecipherable. Has anyone figured out a deciphering method that really works?
Supposedly this TNEF isn't even compatible with their own (!) Outlook Express. Sounds like a near perfect shot in the foot to me.