Weird SMTP timeouts

[blu at vl.com (Tom Metro)]

John Abreau wrote:
> How can I watch what sendmail is doing when I process the queue? I'd
> like to watch the complete protocol as it happens so I can be certain
> what it's doing...

You mean you want to see the full contents of what is being sent through 
the socket? Dig deeper into the tcpdump man page. I believe there is an 
option to dump the packet contents. Or use a GUI sniffer as others 
suggested.


> When I ran the sendmail queue, the four messages each showed just a
> single match, sending to helmsbriscoe and never receiving a response...

This may be misleading due to ESMTP pipelining. Multiple commands may be 
bundled into one packet. Though I'd still expect there to be a few 
packets sent back and forth for the initial handshake used to determine 
if the server supports ESMTP pipelining.

  -Tom

-- 
Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/