When utilizing Go Daddy Hosted Exchange through a reseller account, some recipients (mostly Yahoo/AOL) get attachments and only attachments as Winmail.dat.
Things to note:
This only occurs when sending attachments
The actual attachments never go through
Go Daddy is 100% hands off on the issue
Mail is being sent with HTML formatting (not plain text or RTF)
Many guides I've attempted to look up have said to either send all mail out as HTML or plain text. HTML is what the mail is already being sent out as, and I am testing sending mail as plain text.
Any help is much appreciated on this issue, as this is effecting productivity.