re: DECODING EMAILS BETWEEN MS EXCHANGE AND A CLIENT

From: Dan Berberich (dan.berberich@gmail.com)
Date: Thu Jul 21 2005 - 08:51:15 EDT


Steve - funny, I'm currently working on the same problem. So far all
I've got is doing a session capture and packed decode with ethereal. I
have also exhaustively searched for a X.400 tool, but have so far
found none. In my free time I might be planning to write a parser to
extract just the packet payload, but I'm a little out of free time at
the moment.

-dan

 
Steve said:
We currently have a task that requires us to perform a capture of emails
between an MS Exchange server and a MS Office Outlook (x400) client. I
recognise a dirth of SMTP and POP sniffing programs out there but nothing
seems to be able to decode the DCE RPC encoding/encryption of the exchange
client communications.

Is there anyone out there with knowledge of a product that will allow these
emails to to captured and monitored. Oh before anyone suggests any exchange
resident software, that option is out, we need to be external of the server
and not a member of the domain - just sniffing the stuff as it goes by.

Alternatively, does anyone know of a tool that will allow me to crack the
RPC encryption/encoding to see the email in clear before I replay it to a
server for keyword monitoring purposes?

Oh the architecture is a 200 server with exch 2003 and a XP client with
Office 2002 (incase that matters/helps)

All tips gratefully received.

Steve A

steve<at>logicallysecure.org



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