RE: SMTP no-such-user issues

17 Jun 2008

      Once you've performed a full capture on port 25, Wireshark does a nice job
of providing an option to extract the relevant conversation by
right-clicking on just one packet in that conversation and choosing
something called "Follow the TCP stream", I believe. 

Frank

-----Original Message-----
From: Steve Bertrand [mailto:steve@ibctech.ca] 
Sent: Tuesday, June 17, 2008 7:44 AM
To: frnkblk@iname.com
Cc: nanog@nanog.org
Subject: Re: SMTP no-such-user issues

Frank Bulk - iNAME wrote:
...
Please share a packet capture of a working and not working SMTP exchange.
In order to provide the highest amount of clarity, could you recommend a
specific set of tcpdump command line args that I should use?

Steve