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New Member
Phil_G
Posts: 2
Registered: ‎03-11-2013
My Device: Blackberry Z10

Winmail.dat

Why are WORD, EXCEL and PowerPoint documents sent to me appearing as winmail.dat?

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Hall of Famer II
sdgardne
Posts: 48,563
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.2.2.1531), Playbook (2.1.0.1526)

Re: Winmail.dat

Hi and Welcome to the Community!

Usually, it depends on one of the many gateways that an email passes through on it's path between sender and recipient. If that gateway has an incompatibility issue with the specific attachment format, it may convert it to the .dat and render it useless. It can also vary by recipient capability...you may be able to, for example, receive the same item to Outlook and can use the attachment just fine. It is quite variable.

What I suggest is testing with various senders...and see if any commonality can be discovered. Then work with the sender to work with their admins to try and resolve the issue.

For me, I have an issue when some emails are sent to a particular address of mine...which has an auto-forward over to my primary GMail account. In that path, attachments are indeed rendered useless...but the exact same email delivered directly to Gmail (not via the forward) comes through just fine. So it's that forwarding host that is the problem, in my case.

Good luck!

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New Member
Phil_G
Posts: 2
Registered: ‎03-11-2013
My Device: Blackberry Z10

Re: Winmail.dat

Thanks- I'll follow this through to try and establish a patter - much appreciated
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