https://bugs.exim.org/show_bug.cgi?id=1788
--- Comment #13 from Alex Presland <[email protected]> --- Good news! I have managed to recreate the problem, while I have a tcpdump running. I did this by sending multiple emails to the [email protected] address, until it I got a message back saying: 2016-02-29 21:24:09 1aaVIT-0006zh-Bo == [email protected] R=dnslookup T=remote_smtp defer (0): SMTP error from remote mail server after initial connection: host mx.avasin.plus.net [212.159.9.200]: 421 avasin10.plus.net Plusnet Cloudmark Gateway Too many connections from same IP I then sent in a pre-prepared email to a normal mailman mailing list that included: - Two email addresses under in the userdomain.idps.co.uk domain - One email address under the userdomain.plus.com domain - One email address under the waitrose.com domain (all of these domains end up at PlusNet's MXs with IP addresses 212.159.9.200 and 212.159.8.200) The email to [email protected] and [email protected] were presented to the server by mailman in one email [1aaVJn-0007Aa-9q]; and the email to the [email protected] and [email protected] were presented to the server by mailman in a second email [1aaVJn-0007Aa-0b]. Mailman presented a third email for two other user domains [1aaVJm-0007Aa-K3]. I'll attach the logs for all relevant messages. One relevant line which wasn't picked up by the grep on the messageIDs was: 2016-02-29 21:30:33 Start queue run: pid=28458 The tcpdump that was running in the background was called with the command: tcpdump -n "(host 212.159.8.200 or host 212.159.9.200)" -C 100 -W 10 -w /tmp/eximbug1788.cap & My script that analysed the exim logs found a "missing delivery" at 21:31:27 and ran a "killall tcpdump" to stop the capture. The two emails that went missing were for [email protected] and [email protected]. These were originally submitted by mailman to [email protected] and [email protected]. The alias file for domain1.org.uk directed them to user accounts localuser1 and localuser2. The .forward in each of these accounts caused the message to be delivered locally (R=local_user T=maildir_home) and then used the eximfilter "deliver" directive to deliver a copy to [email protected]. -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
