Does your Exim system have 'ident' enabled? If it does and the calling
party
has ident (TCP/113) firewalled off Exim will fire the ident request and
timeout
after around 30 seconds.
To avoid this delay, either:
a) disable ident in Exim alltogether by setting:
rfc1413_query_timeout = 0
b) have the hosts either run an ident server that is reachable, or remove
the
firewall from TCP/113 such that Exim calls out and gets back a connection
refused (ICMP port unreachable) so that the ident request is handled without
the delay
... just an idea...
Mike
----- Original Message -----
From: "Mike Cardwell" <exim-users@???>
To: <exim-users@???>
Sent: Friday, March 16, 2007 9:52 AM
Subject: Re: [exim] Errors with Exim. Any ideas?
>* on the Thu, Mar 15, 2007 at 05:08:32PM -0400, johnc8117 wrote:
>
>> We're having a problem with a few clients saying that people are
>> sending email to them but that the emails are not getting through. They
>> ran their domain name via a system that tests email servers and it came
>> back with the following issues for the server:
>>
>> "There was a problem while talking with the mail server. Got 'Socket
>> Timeout Exception: Read timed out'"
>>
>> The mailserver we're running is Exim. The domain name is
>> www.newwritingnorth.com and the site they used for testing is here:
>>
>> http://pingability.com/zoneinfo.jsp?...itingnorth.com
>>
>> we ARE getting emails in, but just not from some people, so its a
>> strange one
>>
>> Is there anything that anyone can suggest? Really appreciate it
>
> I just connected to your mail server and went through the first part of
> an SMTP transaction. It seems that the first time it receives a "RCPT TO:"
> there is a delay. The webpage you mentioned is testing your server to see
> if it's an open relay, and it times out due to the delay. I think you're
> allowed up to a 5 minute delay per "RCPT TO" in the RFCs however, but
> they're obviously not going to wait for 5 minutes to load the page!
>
> If the delay is an artificial one, you might want to try turning it off
> and seeing if the problems stop. If the delay is down to some sort of
> check that's taking a long time, try to speed it up.
>
> Mike
>
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