When you email a form such as a paystub or invoice, the recipient of the file receives a file attachment called Winmail.dat instead of the .pdf file that was sent.

This is a known issue for Microsoft Outlook If the recipient's email client cannot receive messages in rich text format (.rtf).

How to fix it

If only one or some customers experience this issue, it can be due to a problem on the receiving end. Certain security and mail filters may detect these emails as mass emailing and must be adjusted accoringly.

Other Articles To Try