![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 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](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 ...
![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)