Hi Jörg, The problem is that the email is in an Exchange proprietary format (RTF aka winmail.dat). If you extract winmail.dat (for example using the linux tnef tool) you would find that it contains the smime.p7m attachment. Normally Exchange should not sent such an email to a non-exchange email address. Exchange should have converted the email to a normal MIME email and not an RTF email. The short term fix is to tell the sender to make sure that either Outlook or the Exchange server does not sent RTF emails (containing the winmail.dat file).
The following two links provide some background info and possible solutions to the RTF problem: http://support.microsoft.com/kb/278061 http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/prevent-winmaildat-attachments-when-sending-smime/b750d490-f060-418f-a343-4880c5f8aad3?msgId=412a8c91-1600-4db9-a1f3-f0d2a378fc1f Note: emails containing winmail.dat can only be read with Outlook. The long term solution would be to add a converter to convert the winmail.dat to a normal MIME email but this is an easy task. On 02/27/2014 03:28 PM, Jörg Spatschil wrote: > Hi, > > I receive s/mime encrypted mails from partners with outlook /exchange. > Some are packaged correctly (RFC) as Content-type: > application/x-pkcs7-mime, but some arrive as Content-Type: > application/ms-tnef; name="winmail.dat" which cannot be decrypted but > contains a valid s/mime. Is there an easy way to decrypt tnefs in Djigzo > or do I have to try to repack the mail? > > Thanks a lot for a great software. > Jörg > > -- DJIGZO email encryption _______________________________________________ Users mailing list [email protected] https://lists.djigzo.com/lists/listinfo/users
