I suspect that Exchange 2010 is configured to use the TNEF message format when sending to certain recipient domains. Where can I check (server-side) to confirm if this is the case? I'm familiar with the Outlook settings for TNEF and that doesn't appear to be using TNEF there.
because of a transition from MS Exchange to Courier IMAP, all our old mail messages have a winmail.dat attachment, which sometimes contains also the message's original attachments. I am looking for a tool which will scan a whole Maildir and convert the winmail.dat-s to "normal attachments" (or delete the ones that just contain the RTF version of the message). I realize there are some commandline tools for *nix, but I have not found an automated solution to process whole Maildirs. Suggestions?