![How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc. How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc.](https://houstonwebdesignandhosting.com/wp-content/uploads/2018/10/Screen0.jpg)
How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc.
![How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc. How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc.](https://z4slv4hiif-flywheel.netdna-ssl.com/wp-content/uploads/2018/10/Screen1.jpg)
How to Fix Recipients Receiving winmail.dat files from Outlook 365 - Houston Web Design and Hosting, Inc.
![Symptom You will get file winmail.dat when you recieve mail. Cause If Microsoft Outlook is badly configured it sends attachments as a file called "winmail. dat" or "ATT0001.dat". This is a binary file and unusable with any other mail program except MS Outlook ... Symptom You will get file winmail.dat when you recieve mail. Cause If Microsoft Outlook is badly configured it sends attachments as a file called "winmail. dat" or "ATT0001.dat". This is a binary file and unusable with any other mail program except MS Outlook ...](https://help.ntt.co.th/old_help_v1/faq/oe/winmail/picweb.png)
Symptom You will get file winmail.dat when you recieve mail. Cause If Microsoft Outlook is badly configured it sends attachments as a file called "winmail. dat" or "ATT0001.dat". This is a binary file and unusable with any other mail program except MS Outlook ...
![FIXED – Why is Outlook sending Winmail.dat to Mac Mail clients – the Autocomplete cache was the reason for me – What is your DX Story FIXED – Why is Outlook sending Winmail.dat to Mac Mail clients – the Autocomplete cache was the reason for me – What is your DX Story](https://1visionot.files.wordpress.com/2016/07/outlook-auto-cache2.png?w=640)