May 08, 2021 
Support Center » Knowledgebase » I'm receiving attachments named "winmail.dat," and I can't open them. How do I fix this?
 I'm receiving attachments named "winmail.dat," and I can't open them. How do I fix this?
Solution
The sender is using Outlook or Outlook Express. To fix the problem they should set their mail software use Plain Text instead of Rich Text and then resend the attachment. This problem is discussed in Microsoft Knowledge Base article 278061, found here: http://support.microsoft.com/default.aspx?scid=kb;en-us;278061


Article Details
Article ID: 347
Created On: Sep 27, 2004 03:52 PM

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