Why does my Thunderbird receives winmail.dat instead of the actual attachments?

The answer is, it’s not Thunderbird’s fault but rather it’s Outlook who generated winmail.dat.

Winmail.dat contains formatting information that only Outlook can decipher. And if the sender uses this mail client then his recipient is using something else, there’s a chance that winmail.dat will be the only attachment that the recipient will see.

Fear not!

For Thunderbird, there is an add-on for allowing it to decode metadata. This add-on is called, LookOut.

Yay! After installing LookOut on Thunderbird, you should be able to open/save the used to be missing attachments.

Tags: ThunderBird

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