[ez-toc]

Mac Users Getting WinMail.dat Files instead of a PDF? Here’s the Fix.

by | Jun 11, 2014 | Information Technology

apple.questionmarkA client using Office 365 recently contacted us with a problem that’s likely happened to you: you send a PDF attachment to a Mac user and they complain that the attachment is a WinMail.dat file they cannot view. Sound familiar? Here’s the fix:

  1. Make sure the person you’re emailing is an existing contact in Office 365.
  2. Use Powershell and run the following command:
  3. Set-MailContact youremailcontact@example.com -UseMapiRichTextFormat Never
  4. Send a test attachment to your contact.
  5. The solution worked perfectly for our client. We hope it helps you out, too.

About ERGOS

ERGOS Technology Partners company headquarters is in Houston, Texas. We are an international provider of managed IT services, specializing in end-to-end computer support and services for businesses and organizations of all sizes. Our highly trained professionals work tirelessly to ensure efficient operations, secure data resources, reliable systems, and exceptional customer service.