[Mailman-Users] delays in mailman sending out email

[Bruce Harrison]

I'm running Mailman 2.1.7

In the past month or two.  I'm seeing Mailman delaying sending out messages.  
In the logs I see where it's posted, then in /var/logs/maillog I see sending 
start immediately and then somewhere along the line a delay of an hour or two, 
then it finishes sending. Or it delays initially then starts sending.
This hasn't been happening in the past.  We in the process of moving a lot of 
our mail users to O365
Not sure what's going on or how best to troubleshoot.  Any ideas?

Bruce Harrison
Univ of Tennessee at Martin

Post Log
Mar 03 13:34:57 2017 (1223) post to information from 
mun...@utm.edu<mailto:mun...@utm.edu>, size=37061, 
message-id=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 success log


/var/logs/maillog
Mar  3 09:11:23 mailman sendmail[17197]: v23FBNsO017197: 
from=<mun...@utm.edu<mailto:mun...@utm.edu>>, size=35583, class=0, nrcpts=1, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, 
relay=mail-dm3nam03lp0023.outbound.protection.outlook.com [207.46.163.23]
Mar  3 13:34:56 mailman sendmail[22801]: v23JYu9r022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=150, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:34:56 mailman sendmail[22801]: v23JYu9s022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=500, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:34:57 mailman sendmail[22801]: v23JYu9t022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=500, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:34:57 mailman sendmail[22801]: v23JYu9u022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=500, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:34:57 mailman sendmail[22801]: v23JYu9v022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=8, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:34:57 mailman sendmail[22801]: v23JYu9w022801: 
from=<information-boun...@mailman.utm.edu<mailto:information-boun...@mailman.utm.edu>>,
 size=37061, class=-30, nrcpts=7, 
msgid=<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>,
 proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] (may be forged)
Mar  3 13:35:02 mailman sendmail[22811]: v23JYu9v022801: 
to=<trinitypr...@frontiernet.net<mailto:trinitypr...@frontiernet.net>>,<mcoch...@wljt.org<mailto:mcoch...@wljt.org>>,<khi...@utfcu.org<mailto:khi...@utfcu.org>>,<trinitypas...@frontiernet.net<mailto:trinitypas...@frontiernet.net>>,<mshum...@wljt.org<mailto:mshum...@wljt.org>>,<mnpe...@comcast.net<mailto:mnpe...@comcast.net>>,<mre...@wljt.org<mailto:mre...@wljt.org>>,<mfi...@charter.net<mailto:mfi...@charter.net>>,
 delay=00:00:05, xdelay=00:00:05, mailer=relay, pri=331061, 
relay=xmail.utm.edu. [10.51.0.154], dsn=2.0.0, stat=Sent 
(<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>
 [InternalId=7717462] Queued mail for delivery)
Mar  3 13:35:02 mailman sendmail[22805]: v23JYu9s022801: 
to=<thibb...@utm.edu<mailto:thibb...@utm.edu>>,<clove...@utm.edu<mailto:clove...@utm.edu>>,<dahen...@utm.edu<mailto:dahen...@utm.edu>>,<mbro...@utm.edu<mailto:mbro...@utm.edu>>,<afull...@utm.edu<mailto:afull...@utm.edu>>,<kroud...@utm.edu<mailto:kroud...@utm.edu>>,<bjohn...@utm.edu<mailto:bjohn...@utm.edu>>,<nda...@utm.edu<mailto:nda...@utm.edu>>,<jimer...@utm.edu<mailto:jimer...@utm.edu>>,<sburl...@utm.edu<mailto:sburl...@utm.edu>>,<thutc...@utm.edu<mailto:thutc...@utm.edu>>,<hche...@utm.edu<mailto:hche...@utm.edu>>,<nashb...@utm.edu<mailto:nashb...@utm.edu>>,<mpari...@utm.edu<mailto:mpari...@utm.edu>>,<jjohn...@utm.edu<mailto:jjohn...@utm.edu>>,<tgall...@utm.edu<mailto:tgall...@utm.edu>>,<sgold...@utm.edu<mailto:sgold...@utm.edu>>,<agard...@utm.edu<mailto:agard...@utm.edu>>,<ddietr...@utm.edu<mailto:ddietr...@utm.edu>>,<jfish...@utm.edu<mailto:jfish...@utm.edu>>,<ahuff...@utm.edu<mailto:ahuff...@utm.edu>>,<kwhee...@utm.edu<ma
 
ilto:kwhee...@utm.edu>>,<lmccur...@utm.edu<mailto:lmccur...@utm.edu>>,<kelmw...@ut.utm.edu<mailto:kelmw...@ut.utm.edu>>,<khamm...@utm.edu<mailto:khamm...@utm.edu>>,<jscot...@utm.edu<mailto:jscot...@utm.edu>>,<arich...@utm.edu<mailto:arich...@utm.edu>>,<rprui...@utm.edu<mailto:rprui...@utm.edu>>,<ewhee...@utm.edu<mailto:ewhee...@utm.edu>>,<lgib...@utm.edu<mailto:lgib...@utm.edu>>,<shalk...@utm.edu<mailto:shalk...@utm.edu>>,<akel...@utm.edu<mailto:akel...@utm.edu>>,<phew...@utm.edu<mailto:phew...@utm.edu>>,<da...@utm.edu<mailto:da...@utm.edu>>,<drya...@utm.edu<mailto:drya...@utm.edu>>,<jda...@utm.edu<mailto:jda...@utm.edu>>,
 [more], delay=00:00:06, xdelay=00:00:06, mailer=relay, pri=15091061, 
relay=xmail.utm.edu. [10.51.0.154], dsn=2.0.0, stat=Sent 
(<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>
 [InternalId=7717459] Queued mail for delivery)
.
.
.
Mar  3 13:35:30 mailman sendmail[22805]: v23JYu9s022801: 
to=<jjone...@utm.edu<mailto:jjone...@utm.edu>>,<pwatk...@utm.edu<mailto:pwatk...@utm.edu>>,<dmccu...@utm.edu<mailto:dmccu...@utm.edu>>,<dwilliams-b...@utm.edu<mailto:dwilliams-b...@utm.edu>>,<jbyr...@utm.edu<mailto:jbyr...@utm.edu>>,<ajohn...@utm.edu<mailto:ajohn...@utm.edu>>,<jgoy...@utm.edu<mailto:jgoy...@utm.edu>>,<sh...@utm.edu<mailto:sh...@utm.edu>>,<mgib...@utm.edu<mailto:mgib...@utm.edu>>,<jhend...@utm.edu<mailto:jhend...@utm.edu>>,<bgi...@utm.edu<mailto:bgi...@utm.edu>>,<lwar...@utm.edu<mailto:lwar...@utm.edu>>,<mtray...@utm.edu<mailto:mtray...@utm.edu>>,<ble...@utm.edu<mailto:ble...@utm.edu>>,<jjohn...@utm.edu<mailto:jjohn...@utm.edu>>,<rjo...@utm.edu<mailto:rjo...@utm.edu>>,<sd...@utm.edu<mailto:sd...@utm.edu>>,<sperr...@utm.edu<mailto:sperr...@utm.edu>>,<djord...@utm.edu<mailto:djord...@utm.edu>>,<cposa...@utm.edu<mailto:cposa...@utm.edu>>,<tharr...@utm.edu<mailto:tharr...@utm.edu>>,<gfe...@utm.edu<mailto:gfelts@utm.
 
edu>>,<cnich...@utm.edu<mailto:cnich...@utm.edu>>,<jlava...@utm.edu<mailto:jlava...@utm.edu>>,<jscho...@utm.edu<mailto:jscho...@utm.edu>>,<vo...@utm.edu<mailto:vo...@utm.edu>>,
 delay=00:00:34, xdelay=00:00:06, mailer=relay, pri=15091061, 
relay=xmail.utm.edu. [10.51.0.154], dsn=2.0.0, stat=Sent 
(<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>
 [InternalId=7717507] Queued mail for delivery)
Mar  3 14:41:17 mailman sendmail[24288]: v23JYu9w022801: 
to=<chaamerw2...@yahoo.com<mailto:chaamerw2...@yahoo.com>>,<jesse.kowalew...@sodexo.com<mailto:jesse.kowalew...@sodexo.com>>,<kevin_mclem...@hotmail.com<mailto:kevin_mclem...@hotmail.com>>,<msud...@worldtrav.com<mailto:msud...@worldtrav.com>>,<njanemille...@gmail.com<mailto:njanemille...@gmail.com>>,<sully12...@aol.com<mailto:sully12...@aol.com>>,<vlhi...@gmail.com<mailto:vlhi...@gmail.com>>,
 delay=01:06:20, xdelay=00:00:02, mailer=relay, pri=481061, 
relay=xmail.utm.edu. [10.51.0.154], dsn=2.0.0, stat=Sent 
(<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>
 [InternalId=7719913] Queued mail for delivery)
Mar  3 14:42:43 mailman sendmail[24288]: v23JYu9r022801: 
to=<dsimm...@utm.edu<mailto:dsimm...@utm.edu>>,<emo...@utm.edu<mailto:emo...@utm.edu>>,<eprit...@utm.edu<mailto:eprit...@utm.edu>>,<eree...@utm.edu<mailto:eree...@utm.edu>>,<esimm...@utm.edu<mailto:esimm...@utm.edu>>,<espi...@utm.edu<mailto:espi...@utm.edu>>,<ewhit...@utm.edu<mailto:ewhit...@utm.edu>>,<ffack...@utm.edu<mailto:ffack...@utm.edu>>,<gbr...@utm.edu<mailto:gbr...@utm.edu>>,<geck...@utm.edu<mailto:geck...@utm.edu>>,<gib...@utm.edu<mailto:gib...@utm.edu>>,<hk...@utm.edu<mailto:hk...@utm.edu>>,<ja...@utm.edu<mailto:ja...@utm.edu>>,<jcl...@utm.edu<mailto:jcl...@utm.edu>>,<jdona...@utm.edu<mailto:jdona...@utm.edu>>,<jesbe...@utm.edu<mailto:jesbe...@utm.edu>>,<jfors...@utm.edu<mailto:jfors...@utm.edu>>,<jgreenw...@utm.edu<mailto:jgreenw...@utm.edu>>,<jh...@utm.edu<mailto:jh...@utm.edu>>,<jjone...@utm.edu<mailto:jjone...@utm.edu>>,<jla...@utm.edu<mailto:jla...@utm.edu>>,<jlong...@utm.edu<mailto:jlong...@utm.edu>>,<jmack@utm
 
.edu<mailto:jm...@utm.edu>>,<jmath...@utm.edu<mailto:jmath...@utm.edu>>,<jonrm...@ut.utm.edu<mailto:jonrm...@ut.utm.edu>>,<jstre...@utm.edu<mailto:jstre...@utm.edu>>,<jyo...@utm.edu<mailto:jyo...@utm.edu>>,<kcur...@utm.edu<mailto:kcur...@utm.edu>>,<kelli...@utm.edu<mailto:kelli...@utm.edu>>,<keric...@utm.edu<mailto:keric...@utm.edu>>,<kevan...@utm.edu<mailto:kevan...@utm.edu>>,<khe...@utm.edu<mailto:khe...@utm.edu>>,<kprzyb...@utm.edu<mailto:kprzyb...@utm.edu>>,<krimf...@ut.utm.edu<mailto:krimf...@ut.utm.edu>>,<kwill...@utm.edu<mailto:kwill...@utm.edu>>,<lda...@utm.edu<mailto:lda...@utm.edu>>,<lea...@utm.edu<mailto:lea...@utm.edu>>,
 [more], delay=01:07:47, xdelay=00:00:05, mailer=relay, pri=4771061, 
relay=xmail.utm.edu. [10.51.0.154], dsn=2.0.0, stat=Sent 
(<320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu<mailto:320e686fea4720449a309fc08fc6f49d01023d5...@exch2010mbox2.utm.edu>>
 [InternalId=7719987] Queued mail for delivery)

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