[exim] Receiving mail from outblaze and others times out aft…

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Autor: Marc Haber
Datum:  
To: exim-users
Betreff: [exim] Receiving mail from outblaze and others times out after initial 220
Hi,

I am having a user complain that receiving messages from some servers,
including hotmail, outblaze and a few others, time out after his exim
has sent the initial 220 greetig, but before the remote side sends its
HELO. The full incoming message is archived as
http://lists.alioth.debian.org/pipermail/pkg-exim4-users/2005-March/000031.html,
but here is the relevant excerpt from a debugging output:

11175 host in helo_try_verify_hosts? no (option unset)
11175 host in helo_accept_junk_hosts? no (option unset)
11175 SMTP>> 220 mail.example.com ESMTP Exim 4.44 Wed, 30 Mar 2005 22:13:24 +1000
11175 Process 11175 is ready for new message
11175 smtp_setup_msg entered

At this point it waits for the remote host until eventually (after 5
minute default timeout)

11175 LOG: lost_incoming_connection MAIN
11175 SMTP command timeout on connection from fallback.us4.outblaze.com [205.158.62.120]

The host is behind a NAT router on a DSL line, so a MTU problem seems
to be the kneejerk response, but neither the initial 220 greeting nor
the HELO/EHLO from the remote site is likely to trip any MTU and PMTUD
issues.

Do you guys have an idea what could be the problem here?

Greetings
Marc

-- 
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