Microsloth winmail.dat (TNEF) file decoding?

Hi All,

I'm just wondering what luck or clues anyone might have for
decoding "windmail.dat" TNEF files from microsoft email
clients on AmigaOS.

A bit of background (if you need), these TNEF files (named
"winmail.dat" are proprietary attachments microsoft cooked
up to lock out foreign platforms...

http://en.wikipedia.org/w/index.php?s ... n=&title=Special%3ASearch

There are a couple ways for getting into these TNEF files
on AmigaOS that I've found: Unarc has a very out of date
MS-TNEF decoder and there's an old decoder on OS4Depot:

http://os4depot.net/index.php?functio ... =utility/archive/tnef.lha

Unfortunately, I'm finding the unarc plugin almost never
shows anything and the decoder util doesn't decode ICS
(calendar invites).

Anyone have any suggestions?

So far the only way I've found to get into the attachments
has been to forward messages into my gmail acct and (only)
open it in webmail.

Thanks,

PJS

@pjs

I compiled the latest version of the tnef in case it helps:
https://dl.dropboxusercontent.com/u/26599983/tnef-1.4.10.7z

Also compiled ytnef if it works better:
https://dl.dropboxusercontent.com/u/26599983/ytnef-2.6.7z

@salass00

Thank you very much for the ports!

I tried both. Both appeared to run fine (no visits from
the GR :) ), but had mixed luck getting past that.

It must just be my lack of experience with *nix command
syntax, I can only get tnef to print help and "save-body".
I wasn't able to get tnef to list file contents or show
header contents (?). Here's a excerpt of all the commands
I entered in the shell (in the dir with tnef & the file):

11.RAM Disk:tnef-test> ls
tnef winmail.dat
11.RAM Disk:tnef-test> tnef -t winmail.dat
11.RAM Disk:tnef-test> tnef --list winmail.dat
11.RAM Disk:tnef-test> tnef -t --list winmail.dat
11.RAM Disk:tnef-test> tnef --list-with-mime-types winmail.dat
11.RAM Disk:tnef-test> tnef -w winmail.dat
11.RAM Disk:tnef-test> tnef --interactive winmail.dat
11.RAM Disk:tnef-test> ls
tnef winmail.dat

As you see, every variation had no output.

As for ytnef, it also ran and its syntax wasn't all that
much better. Using the example command line they gave...

ytnef -F -f . winmail.dat

...it appears to be trying to use *nix path formatting so I
was never able to export the files. I did get a lot of
Assign requesters looking for "./FW:". ;)

On the other hand, the ytnefprint program did finally show
what has been missing from before... I think Outlook must
be hiding the "invite" contents in the header (?) of the
windmail.dat file, and ytnefprint prints out that info.
A small victory.

Thanks again!

PJS

@pjs

Quote:

The unix path semantic shouldn't be a problem since I use -lunix but the ':' character is. The filenames come from the input file so I've added code for converting any ':' characters in the filenames into '-' which should fix the problem:

https://dl.dropboxusercontent.com/u/26599983/ytnef-2.6.7z

I have at a few occasions used http://www.winmaildat.com/ to get something usable out of those pesky winmail.dat files some people send me.

Best regards,

Niels

@salass00

Thanks,

I tried the new version and didn't have much better luck
with it, but at least it stopped asking me for non-existent
paths.

Again I tried decoding the problematic winmail.dat files
and I got no output from the "ytnef" program.

OTOH the "ytenfprint" program continues to print out the
.ics file that seems to be embedded by M$ in the
winmail.dat file (only gmail's webmail engine seems to
decode it).

Thanks,

PJS

if anyone is interested in creating a datatype :

File format info :
[MS-OXTNEF]: Transport Neutral Encapsulation Format (TNEF) Data Algorithm

http://goo.gl/b7F7pQ

exchange protocols complete zip file
http://goo.gl/5UJuyJ