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lowExchangeotherlearn_sharepoint · Aug 28, 2026
Emails sent to myself via outlook show up as just "winmail.dat" - Microsoft Q&A
Users are experiencing an issue where emails sent to themselves via Outlook appear as 'winmail.dat' when sent to Gmail, which may be related to file attachment handling or formatting settings.
“This issue only happens when I send files from my Outlook to my Gmail, both of which are using the same adress. Everything seems to work just fine when it's received from or sent to a different address. I have already tried changing the message formatting in Outlook from HTML to rich text and then back again, but it …”
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end_user
Environment
cloud
Classification confidence: 80%
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