MHonArc Users, Later versions of MHonArc have a default configuration to exclude application/ms-tnef data: A proprietary media-type used in Microsoft Outlook that has no decent use outside of the MS world. This media-type is used if you specify to use MS rich text format for composing mail (which has no relation to the text/richtext and text/enriched types). See the MIMEFILTERS resource on the default settings for MHonArc and how to change them.
However, for those that may want to deal with it, I found a no-cost program called Fentun at <http://www.fentun.com/>. It is not Open Source, but binaries are free for download for Win32 and Linux. The program has the ability to read an application/ms-tnef file and decode it. Note, I find it strange that Outlook cannot directly load a application/ms-tnef file from disk, so even if you have Outlook, you need something else to read the data if it is not part of an email message. I also found something called lstnef that is java source code for decoding application/ms-tnef. I could not find anything in Perl. The only reason I bother looking into this stuff is that the internal archives at run at work have to deal with messages from MS Outlook, and unfortunatly, some users specify MS RTF format for composing mail. --ewh
