Skip to main content

Posts

Showing posts from April, 2009

Decoding winmail.dat attachment

From time to time, I receive email with attachment "winmail.dat". This is because the sender is using Microsoft Outlook. It encodes attachment into a proprietary format ( TNEF ) making other e-mail clients fail to display the content correctly. Interestingly, this includes Microsoft Outlook Express. A quick Google research solves the issue. Thunderbird - use an add-on called Lookout . It decodes winmail.dat automatically in the background and put the attachment in the attachment pane. Mac OS X - use TNEF2.0 which is a free decoder written by Josh Jacob. Windows - use freeware Winmail Opener .