Help with winmail.dat file attachment from 2 senders...

Emails coming in with winmail.dat

I have put sooooo many hours into trying to figure out how I can use Microsoft Outlook on a MAC.. and not get this as an attachment. I have repeatedly asked the 2 senders that this happens with their sender preferences and they can't do it...What am i doing wrong?

I am using an Office 365 subscription version 15.31 (170216)

Is there anything I can do?? Please help
Michael KatzAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
Quote from an article I saw "The Winmail.dat file is used to preserve Rich Text formatting. Outlook uses it when sending a Rich Text-formatted message"  

I have not seen a winmail.dat file in a Windows world for years. Outlook (Windows) uses Word for its editor.

Try sending in straight text (not HTML) and see if the problem goes away.
Michael KatzAuthor Commented:
I haven't seen it in years either..I am not the sender.. I am the recipient..The 2 senders keep telling me they have done all they can and if they send me an email they need to change there preferences for me.. and then change them back for everyone else
KimputerIT ManagerCommented:
The settings has to be preferably done on the server level:

It becomes a problem though if it's not their own server, but from their ISP or mailhoster, who usually are not very responsive to adjust server level changes.
as far as i remember this happened with old servers configured to use the TNEF format which uses RTF for rich text rather than html embedded in mime. one of those numerous times when m$ tried to impose their own format on everyone else, and one of the few times they failed entirely... to the poitn they're not even compatible with themselves any more. i'm astonished there is a single server left using TNEF.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Clients

From novice to tech pro — start learning today.