Transport Neutral Encapsulation Format
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== Software ==  | == Software ==  | ||
* [http://www.fentun.com/ Fentun]: Freeware Windows program to decode this attachment  | * [http://www.fentun.com/ Fentun]: Freeware Windows program to decode this attachment  | ||
| − | * [https://addons.mozilla.org/en-US/thunderbird/addon/lookout/ Lookout]: Thunderbird addon to read TNEF  | + | * [http://sourceforge.net/projects/tnef/ TNEF]: An open source TNEF decoder utility  | 
| + | * [https://addons.mozilla.org/en-US/thunderbird/addon/lookout/ Lookout]: Thunderbird addon to read TNEF (based on the above TNEF decoder utility)  | ||
== Links and references ==  | == Links and references ==  | ||
* [[Wikipedia:Transport Neutral Encapsulation Format|Transport Neutral Encapsulation Format (Wikipedia)]]  | * [[Wikipedia:Transport Neutral Encapsulation Format|Transport Neutral Encapsulation Format (Wikipedia)]]  | ||
* [http://www.modemhelp.net/newsletter/email/winmaildat.shtml How to turn off winmail.dat attachments]  | * [http://www.modemhelp.net/newsletter/email/winmaildat.shtml How to turn off winmail.dat attachments]  | ||
Revision as of 04:13, 2 March 2013
Transport Neutral Encapsulation Format (TNEF) is a proprietary format used by Microsoft mail software to encode attachments and rich text, instead of more standards-compliant methods such as MIME.
It is usually implemented as an attachment called winmail.dat or win.dat, which Microsoft programs know what to do with, but is a useless and confusing attachment to everybody else (unless they use one of several programs and plugins that have been devised to help non-MS-ers cope with it).
Software
- Fentun: Freeware Windows program to decode this attachment
 - TNEF: An open source TNEF decoder utility
 - Lookout: Thunderbird addon to read TNEF (based on the above TNEF decoder utility)