On my edge servers configured as filters (reinjecting by smtp, as opposed to milters) emtying the queues stopped. This affects mainly admin notifications. Filtering functions flawlessly. I had this problem some years ago but can't remember the solution.
The pmx_log entries look like this:
1 2016-01-26T14:52:34 [10837,queue-runner] 2FCCFA0034: q=56A770C1_17411_1307_1 from=XXXXXXXX@XXXXXXXXXX.ac.at to=postmaster@XXXXXXXXXX.ac.at client=XXX.XXX.XXX.XXX msgid=F9D9F56E-C93C-4390-8C3F-C11FFB6ECF37@XXXXXXXXXX.ac.at gid=1141-1 status=connect to localhost: Operation timed out
pmx-queue list gives
#1132 <postmaster@XXXXXXXXXX.ac.at> (28 bytes) 2016-01-26 15:52:01
3 minutes ago: 101: connect to localhost: Operation timed out
The relevant entries in pmx.conf are
mail_sender = smtp:localhost:10026
admin = PureMessage Admin <postmaster@XXXXXXXXXX.ac.at>
I tried the solution suggested in https://community.sophos.com/products/web-appliance/f/5/p/1761/3580#3580
in pmx-qdigest.conf
centralized = true
but without any success.
Suggestions are much appreciated.
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