You may want to look into the configuration of the Exchange Servers:

How to configure Internet e-mail message formats at the user and the domain
levels in Exchange Server 2003
http://support.microsoft.com/default...b;en-us;821750

Fixing problems recipients have with your Outlook messages
http://office.microsoft.com/en-us/as...spx?mode=print

I will check my stuff at work. I think I have more there that may help.

Nikki Peterson

"
wrote in message
...
Hi, I was wondering if you ever found the problem. I have come across it
as
well. My situation:
Two exchange server 2003 boxes. Mailboxes in either server can send
attachments to the outside world just fine. Server1 users can send
attachments to Server2 mailboxes just fine, but users on Server2 cannot
send
attachments to users on Server1, they get winmail.dat files. Both servers
have Exchange 2003 with SP2 installed.

My research has turned up info that Exchange sends messages within a
Routing
Group via TNEF with is very similar to RTF, this seems to be the problem,
but
can't turn off this "feature."

Of course, this should NOT be a problem because all users are using
Outlook,
HOWEVER, they are getting winmail.dat files.

Thanks,
--
BillB


" wrote:

-kick-

Let me explain again:
These are Outlook 2000/2003 Exchange clients connecting to a local
Exchange 2003 Server, sending email to eachother in HTML format with
"Never use RTF" ticked in Exchange System Manager.

And they still get winmail.dat attachments!

I find it trully amazing after all these years of experience in IT I
finally have a "new" problem the community has no answer to :-)