The server's IP address is 203.18.189.160.
Why the connection is dying is what I am after. Can't see a valid
reason for this to be happening.
On Mon, 19 Feb 2001, Alex Pennace wrote:
> On Tue, Feb 20, 2001 at 11:01:51AM +1100, Ryan Byrne wrote:
> > My qmail gateway is having problems sending mail to one site.
> > It comes up with the message:
> >
> > @400000003a91aab624c4605c delivery 21318: deferral:
>Connected_to_203.18.189.160_but_connection_died._Possible_duplicate!_(#4.4.2)/
>
> "Connected to x.y.z.a but connection died." means a connection was
> established but it died at some point. The "possible duplicate"
> qualifier means that the connection died after qmail-remote sent the
> \r\n.\r\n terminating sequence but before it got an acknowledgement
> from the other end.
>
> > If this error occurs it normally only happens to a site
> > once or twice and then the message gets through. With this
> > site every delivery gets this error and then the message
> > eventually fails. Apparently there is no problem with the
> > other site receiving mail from any other source. I guessed
> > that maybe the message confirmation was invalid, or not
> > arriving, so firstly I delivered the message by telnet to
> > port 25 and the confirmation comes back with:
> >
> > 250 OK
> [...]
> > I ran an strace and got the following
> >
> > 31499 982557084.820533 read(3, "354 Send data. End with CRLF.CR"..., 128) = 36
> > 31499 982557084.820601 read(0, "Received: (qmail 14284 invoked b"..., 1024) = 568
> > 31499 982557084.820749 read(0, "", 1024) = 0
> > 31499 982557084.820791 select(4, NULL, [3], NULL, {1200, 0}) = 1 (out [3], left
>{1200, 0})
> > 31499 982557084.820927 write(3, "Received: (qmail 14284 invoked b"..., 581) = 581
> > 31499 982557084.821009 select(4, [3], NULL, NULL, {1200, 0} <unfinished ...>
> > 31499 982557389.880638 <... select resumed> ) = 1 (in [3], left {894, 970000})
> > 31499 982557389.880738 read(3, <unfinished ...>
> > 31499 982557389.880795 <... read resumed> "", 128) = 0
> > 31499 982557389.880881 write(1, "r\0ZConnected to 203.18.189.160 b"..., 82
><unfinished ...>
> > 31499 982557389.880961 <... write resumed> ) = 82
> > 31499 982557389.881160 _exit(0) = ?
> >
> > which seems to me as though something unusual is happening
> > between sending the message and trying to receive the
> > confirmation.
>
> As the log message indicates.
>
> > I have taken a look through the source code however I am a
> > bit out of touch with my C coding, so was unable to pick up
> > anything obvious. I have gotten hold of an IDE and will try
> > my luck with that.
> >
> > I am running qmail v1.03 on a redhat 6.2 box (kernel 2.2.16).
> > The remote server appears to be a Microsoft Exchange Server v5.5.
> >
> > I would have written the problem off as a problem with the
> > remote server if the telnet hadn't worked.
>
> What is the server's address?
>
--
Ryan Byrne
Server Analyst
Technical Services
John Fairfax Holdings
(02) 9282 3634
[EMAIL PROTECTED]
