This project is read-only.

WinMail.dat attachments

Mar 15, 2012 at 8:23 PM

How to get email from whis attachment?

Mar 16, 2012 at 3:49 AM
Edited Mar 16, 2012 at 8:28 AM

What is the WinMail.dat attachments?
Please tell me more detail about WinMail.dat

Mar 16, 2012 at 1:42 PM

Outlook can use a special method, technically referred to as Transport Neutral Encapsulation Format (TNEF), to package information for sending messages. The use of TNEF is affected by settings in Outlook that are referred to as Rich Text Format (RTF). TNEF and RTF are not identical, but they are very similar.

A TNEF-encoded message contains a plain text version of the message and a binary attachment that “packages” various other parts of the original message. In most cases, the binary attachment is named Winmail.dat, and it includes the following information (if included in the message):

  • The formatted text version of the message (ie, font and colors).
  • OLE objects (such as embedded pictures and embedded Office documents).
  • Special Outlook features (i.e., custom forms, voting buttons, and meeting requests).
  • Regular file attachments that were attached to the original message.

Format description