Exchange Server and winmail.dat

Wayback-machine - or having trouble with winmail.dat like 10 years ago.

We have an plain old exchange 2010 server, powerring customers small business office email. Now we tried to install Youtrack as trouble ticket system and used the imap email connector. What happens? Each attachment was shown as winmail.dat

The workaround for winmail.dat described on several blogs and the MS knowledge base is to disable the TNEFEnabled option for sending emails to remote domains. Bute, this does not match our problem: IMAP Connector has an own Rich text setting! Set this to HTML and plain text, everything works like a charm:


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