> == r...@xyz.com R=xxx (-36): host lookup for <imap_server> did not > complete (DNS timeout?) > > There is no problem with DNS resolution of the relevant domains on those > MX servers whatsover, judging by using dig and host command in shell.
A dig or host command once is not a proof. #!/bin/sh while true do /usr/bin/time -a -o /tmp/timelog dig +short <imap_server> mx >/dev/null sleep 0.2 done > On IMAP servers receiving emails from the above MX servers, the new and > very frequent error is now this (even when the mid corresponds to just > one recipient): > > <mid> no immediate delivery: more than 10 messages received in one > connection You need this setting: > smtp_accept_max_per_connection = 100 for the receiving Exim (you call that "IMAP servers"). And restart Exim. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
