Mail attachments
Why do pdf's come as Win Mail attachments on my iPhone
Why do pdf's come as Win Mail attachments on my iPhone
Hey GeoffDun,
These attachments are not PDFs, but are generated by Microsoft Outlook or Microsoft Exchange, and contain formatting information for the e-mail itself. Further information can be found in the link below.
If you get an email message with a winmail.dat attachment on your Mac
https://support.apple.com/en-us/HT201773
Cheers,
Allen
Mail attachments