North American Network Operators Group

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RE: SMTP no-such-user issues

  • From: Frank Bulk - iNAME
  • Date: Tue Jun 17 08:46:05 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:[email protected]] 
Sent: Tuesday, June 17, 2008 7:44 AM
To: [email protected]
Cc: [email protected]
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