On Mon, Mar 13, 2000 at 04:08:41PM +0000, Edouard Soriano wrote:
>
> Linux 2.2.12 RedHat 6.1
Thanks for providing your linux and distribution version, but I believe
that your sendmail version would be more important in order to determine
what's wrong with it.
BTW, the sendmail FAQ (find it at www.sendmail.org) has a section with a
question similar to this one, but not quite the same:
Q3.10 -- How do I solve "collect: I/O error on connection" or "reply:
read error from host.name" errors?
Date: April 8, 1997
Updated: June 4, 1998
There is nothing wrong. This is just a diagnosis of a condition that
had not been diagnosed before. If you are getting a lot of these from
a single host, there is probably some incompatibility between 8.x and
that host. If you get a lot of them in general, you may have network
problems that are causing connections to get reset.
Note that this problem is sometimes caused by incompatible values of
the MTU (Maximum Transmission Unit) size on a SLIP or PPP connection.
Be sure that your MTU size is configured to be the same value as what
your ISP has configured for your connection. If you are still having
problems, then have your ISP configure your MTU size for 1500 (the
maximum value), and you configure your MTU size similarly.
Although it seems like a problem of this sort would affect all of
your connections, that is not the case. You may encounter this
problem with only a small number of sites with which you exchange
mail, and it may even affect only certain size messages.
Perhaps this is not very helpful, but to be able to find out what causes
your problem, the version of your sendmail is probably required. If you
don't know how to get it, then try telnet'ing to your SMTP port (25):
% telnet localhost 25
and grab the output. Of my machine it says:
% telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.hell.gr.
Escape character is '^]'.
220 hades.hell.gr ESMTP Sendmail 8.9.3/8.9.3; Tue, 14 Mar 2000 \
10:20:58 +0200 (EET)
so, my sendmail version is 8.9.3 -- try the same and see what it prints
back to you :)
--
Giorgos Keramidas, < keramida @ ceid . upatras . gr >
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