Jesus,
The sequence above, is that from the remote
SMTP server or from yours to them?
This may not be direct help, but reading through
RFC793 will help you understand this sequence
of packets.
Usually a RST is sent when there is a problem.
If you can sniff the connection, check to see if
the sequence number is correct or if the ack is
for something else.
I'm sure others(e.g. more experienced) can help
here if I've missed/misstated anything.
Robert
- -
Robert P. MacDonald, Network Engineer
e-Business Infrastructure
G o r d o n F o o d S e r v i c e
Voice: +1.616.261.7987 email: [EMAIL PROTECTED]
>>> "Jesus Calvo Hernandez" <[EMAIL PROTECTED]> 7/3/00 7:24:39 AM >>>
>Hi
>
>From some time ago I keep seeing this message on the log of my firewall gateway; our
>line to the internet is
>E1 and its occupation is no longer than 40 % average on both directions, so no
>bandwidth problem seem
>to be the culprit. This message appears when trying to connect to our mail-relay
>servers from other mail
>servers on the internet mainly.
>
>Anyone has experienced this before?
>
>Regards
>
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