These are probably ?!*%$# tnef type files generated by MS apps and they *may* contain real attachments, (the winmail.dat is usually useless however). You can retrieve the information in these (assuming they are tnef files - check the content type headers of the message- There should be a header just before the enclosure).
1: Get a copy of fentun. http://www.fentun.com/
2: Place it in a directory. (I'll assume that it's in C:\Fentun,
making the program path C:\Fentun\fentun.exe)
3: Edit the file 'mime-map.pm' using any text editor, such as
notepad. This file is located in the same directory as the
Pegasus executable. (Normally C:\Pmail for a standalone
installation IIRC - my installation is non-standard so I can't
double check). This file normally only has 1 entry in it as
follows: Text/HTML = HTML-text
Add a line following the above line:
application/ms-tnef = TNEF
What this does is cause Pegasus to check the content type
headers of incoming messages/enclosures. If it finds one with
a content type of application/ms-tnef it will generate an
internal Pegasus 'attachment type information' label of TNEF.
You can use any label you want here - I chose TNEF because it
seems logical.
You can use this mechanism with any other content types that
Pegasus doesn't have built in support for.
4: In Pegasus go to Tools|Options:Viewers Click on the ADD button.
In the dialogue that comes up select the radio button next to
'"Attachment-type" information'. In the dropdown box for
'matches' *type in* TNEF. It will NOT appear in the dropdown
choices since you have manually created it.
5: For 'Command to execute' select the 'Run this program' radio-
button and point it to fentun.exe (ie. C:\Fentun\fentun.exe)
6: For extension to use for temporary file I use .tnf (don't
forget the leading .)
That's it. You'll now be able to view the contents of any tnef
attachments (or winmail.dat - which will come up empty 99.9, if not
100, percent of the time) that you get simply by hitting the 'view'
button (which will no longer be greyed out).
NOTE: Instead of steps 4,5, and 6 you can edit the viewer.pm file located in your home directory (viewers are defined per user, not globally) and add the following line to it (note - change the path as required)
2;TNEF;.tnf;C:\Fentun\FENTUN.EXE
These are probably ?!*%$# tnef type files generated by MS apps and they *may* contain real attachments, (the winmail.dat is usually useless however). You can retrieve the information in these (assuming they are tnef files - check the content type headers of the message- There should be a header just before the enclosure).
1:  Get a copy of fentun. http://www.fentun.com/
2:  Place it in a directory. (I'll assume that it's in C:\Fentun,
    making the program path C:\Fentun\fentun.exe)
3:  Edit the file 'mime-map.pm' using any text editor, such as
    notepad. This file is located in the same directory as the
    Pegasus executable. (Normally C:\Pmail for a standalone
    installation IIRC - my installation is non-standard so I can't
    double check). This file normally only has 1 entry in it as
    follows: Text/HTML = HTML-text
    Add a line following the above line:
    application/ms-tnef = TNEF
    What this does is cause Pegasus to check the content type
    headers of incoming messages/enclosures. If it finds one with
    a content type of application/ms-tnef it will generate an
    internal Pegasus 'attachment type information' label of TNEF.
    You can use any label you want here - I chose TNEF because it
    seems logical.  
    You can use this mechanism with any other content types that
    Pegasus doesn't have built in support for.  
4:  In Pegasus go to Tools|Options:Viewers Click on the ADD button.
    In the dialogue that comes up select the radio button next to
    '"Attachment-type" information'. In the dropdown box for
    'matches' *type in* TNEF. It will NOT appear in the dropdown
    choices since you have manually created it.
5:  For 'Command to execute' select the 'Run this program' radio-
    button and point it to fentun.exe (ie. C:\Fentun\fentun.exe)
6:  For extension to use for temporary file I use .tnf (don't
    forget the leading .)
That's it. You'll now be able to view the contents of any tnef
attachments (or winmail.dat - which will come up empty 99.9, if not
100, percent of the time) that you get simply by hitting the 'view'
button (which will no longer be greyed out).
NOTE: Instead of steps 4,5, and 6 you can edit the viewer.pm file located in your home directory (viewers are defined per user, not globally) and add the following line to it (note - change the path as required)  
2;TNEF;.tnf;C:\Fentun\FENTUN.EXE
