"Invalid TNEF message" exception - "Data doesn't contain compound file identifier."

Question

I am getting this exception when trying to load a message using Rebex Secure Mail 2012 R1.

ex {"Invalid TNEF message."} System.Exception InnerException {"Data doesn't contain compound file identifier."} System.Exception

Comments

ex {"Invalid TNEF message."} System.Exception InnerException {"Data doesn't contain compound file identifier."} System.Exception

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This is not the same exception. It looks like we were not able to find headers in OLE attachment. Could you please zip the message and send it to support@rebex.net so that we could look at it?

Answer 1

Thank you for sending the mail to us. We investigated into it and the 'Invalid TNEF message' exception is caused by the fact that the TNEF ('winmail.dat') contains another embedded TNEF message which contains another one. We never encountered this before and this is not a supported feature yet.

We will try to solve this problem in one of the future releases (not the next one, which is already quite near).

Update: Support for TNEF-within-TNEF messages was added in Rebex Secure Mail 2012 R3!