Thursday, June 28, 2012, 15:17
Solution ID: 00000130
You are receiving errors from your mail client saying "can not read winmail.dat" or some similar error. You are *not* using a Microsoft e-mail client.
winmail.dat is a proprietary Microsoft method of encrypting mail. This file is generally only understood by Microsoft programs. Non-Microsoft mail clients often can not read the winmail.dat attachment. This is a very common problem.
This situation occurs when an Outlook mail client is configured to send mail using the rich text format rather than HTML. The sending mail client (Outlook) needs to be configured to use HTML markup.
NOTE: This is a change that needs to be made on the sender, so it will likely be a person outside of the local organization.
In general you can disable this behavior in Outlook as follows:
Tags: winmail.dat, microsoft, outlook, exchange, errors, can not read
Link to this article: kb/winmail_dat_errors
Updated: Thursday, June 28, 2012, 15:17
-- David Rutherford
Last modified: 2012-08-27, 16:52
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