[exim-dev] [Bug 2806] Repeated deliveries to yahoo.co.jp

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Author: admin
Date:  
To: exim-dev
Subject: [exim-dev] [Bug 2806] Repeated deliveries to yahoo.co.jp
https://bugs.exim.org/show_bug.cgi?id=2806

--- Comment #10 from David Carter <dpc22@???> ---
Yes, hosts_avoid_pipelining has fixed the dropped connections, and email is now
delivered immediately:

2021-10-10 10:03:54 +0100 1mZUkM-00037M-se <= dpc22@??? U=dpc22
P=local S=562 for kohei_w@???
2021-10-10 10:04:00 +0100 1mZUkM-00037M-se => XXX@???
F=<dpc22@???> P=<dpc22@???> R=dnslookup T=smtp_dkim
S=1245 H=mx5.mail.yahoo.co.jp [124.83.142.247]:25 I=[131.111.8.150]:60946
C="250 ok dirdel" QT=5s DT=5s
2021-10-10 10:04:00 +0100 1mZUkM-00037M-se Completed

I will check in my user later, but I'm pretty sure that this was the problem.

Thank you.

Presumably provoked by some change in the pipelining in 4.95. Are we likely to
run into the same problem with other people, or was this yahoo.co.jp being
particularly broken?

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