Winmail.dat is killing me, how do i get rid of it from receivers end?

Hello ymeblue,

Thank you for using Apple Support Communities!

We understand from your post that you are receiving winmail.dat file attachments. This article has information on what to do if your email contains a winmail.dat attachment which you may find useful:

If your email contains a winmail.dat attachment - Apple Support

Best Regards.

Yvette,

If you’re a Mac user who frequently encounters many emails sent from Windows users with ‘winmail.dat’ attachment files, another approach is to use a free tool called “TNEF’s Enough” (Sound it out, teneffs enuff – creative!). This is probably the best approach if you see and encounter many winmail.dat files on the Mac (whether in Mail or otherwise) and want to always get to the bottom of them quickly.

https://apps.apple.com/us/app/tnefs-enough/id986621173?ls=1&mt=12

To answer your direct question:

The sender is sending the messages using a Microsoft-proprietary format.

This is a sender configuration setting, and not a receiver bug.

Somebody’s mail server or somebody’s local client settings are incorrect.

Your friend is in the sending system settings correctly, or is using a Microsoft mail client.