Solved

E-mails changed to << File: winmail.dat >>

Posted on 2004-04-05
2
1,843 Views
Last Modified: 2010-03-05
Hi guys,

This is a Exchange and Windows 2000 environment.
One of my users repoted that when she sends email to some people, reciever cannot open it.
Email is recived in a file with .dat extension like << File: winmail.dat >> 
Actually original email does not have any attachments, only message text.

I would appreciate any respond to that issue.

Thanks,



0
Comment
Question by:cakirfatih
2 Comments
 
LVL 8

Accepted Solution

by:
seeimred earned 500 total points
ID: 10762100
If the recieving end isn't using Exchange or Outlook, then your user needs to send to those people in Plain Text format. The winmail.dat attachment is a result of MS Proprietary message encapsulation called Transport Neutral Encapsulation Format (affectionately known as TNEF). TNEF is enabled by default when the message is composed in RTF or HTML. It's basically a wrapper around the body & it's attachments. The winmail.dat appears at it's destination. Usually the destination server or client isn't a Microsoft product, it can't unwrap the TNEF wrapper properly so it tries it's best. It doesn't know if it is an essential part so it retains it as an attachment called winmail.dat. Sometimes the unwrapping is so bad that it takes the body with the winmail.dat and all the user has left is the header.

Here's some articles dealing with this subject:
OL2000: Transport Neutral Encapsulation Format (TNEF) Basics http://support.microsoft.com/default.aspx?scid=kb;en-us;224817
OL2000: (CW) Winmail.dat Attachments Included in Received Messages  http://support.microsoft.com/default.aspx?scid=kb;en-us;197064
0
 

Author Comment

by:cakirfatih
ID: 10766513
it worked perfect
thanks
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
How to resolve IMCEAEX NDRs in Exchange or Exchange Online related to invalid X500 addresses.
In this video we show how to create an Address List in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Organization >> Ad…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

792 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question