[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 munger at utm.edu<mailto:munger at utm.edu>, size=37061, message-id=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>>, success log


/var/logs/maillog
Mar  3 09:11:23 mailman sendmail[17197]: v23FBNsO017197: from=<munger at utm.edu<mailto:munger at utm.edu>>, size=35583, class=0, nrcpts=1, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=150, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=500, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=500, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=500, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=8, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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-bounces at mailman.utm.edu<mailto:information-bounces at mailman.utm.edu>>, size=37061, class=-30, nrcpts=7, msgid=<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at 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=<trinitypresb at frontiernet.net<mailto:trinitypresb at frontiernet.net>>,<mcochran at wljt.org<mailto:mcochran at wljt.org>>,<khicks at utfcu.org<mailto:khicks at utfcu.org>>,<trinitypastor at frontiernet.net<mailto:trinitypastor at frontiernet.net>>,<mshumake at wljt.org<mailto:mshumake at wljt.org>>,<mnperry at comcast.net<mailto:mnperry at comcast.net>>,<mreese at wljt.org<mailto:mreese at wljt.org>>,<mfield at charter.net<mailto:mfield at 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 (<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>> [InternalId=7717462] Queued mail for delivery)
Mar  3 13:35:02 mailman sendmail[22805]: v23JYu9s022801: to=<thibbard at utm.edu<mailto:thibbard at utm.edu>>,<clovette at utm.edu<mailto:clovette at utm.edu>>,<dahender at utm.edu<mailto:dahender at utm.edu>>,<mbrooks at utm.edu<mailto:mbrooks at utm.edu>>,<afulle14 at utm.edu<mailto:afulle14 at utm.edu>>,<kroudenb at utm.edu<mailto:kroudenb at utm.edu>>,<bjohnson at utm.edu<mailto:bjohnson at utm.edu>>,<ndavis at utm.edu<mailto:ndavis at utm.edu>>,<jimerson at utm.edu<mailto:jimerson at utm.edu>>,<sburliso at utm.edu<mailto:sburliso at utm.edu>>,<thutche2 at utm.edu<mailto:thutche2 at utm.edu>>,<hchen38 at utm.edu<mailto:hchen38 at utm.edu>>,<nashbaug at utm.edu<mailto:nashbaug at utm.edu>>,<mparish1 at utm.edu<mailto:mparish1 at utm.edu>>,<jjohn275 at utm.edu<mailto:jjohn275 at utm.edu>>,<tgallien at utm.edu<mailto:tgallien at utm.edu>>,<sgoldmon at utm.edu<mailto:sgoldmon at utm.edu>>,<agardner at utm.edu<mailto:agardner at utm.edu>>,<ddietrich at utm.edu<mailto:ddietrich at utm.edu>>,<jfishe37 at utm.edu<mailto:jfishe37 at utm.edu>>,<ahuffma2 at utm.edu<mailto:ahuffma2 at utm.edu>>,<kwheel19 at utm.edu<mailto:kwheel19 at utm.edu>>,<lmccurley at utm.edu<mailto:lmccurley at utm.edu>>,<kelmwhit at ut.utm.edu<mailto:kelmwhit at ut.utm.edu>>,<khammond at utm.edu<mailto:khammond at utm.edu>>,<jscott61 at utm.edu<mailto:jscott61 at utm.edu>>,<aricha54 at utm.edu<mailto:aricha54 at utm.edu>>,<rpruit10 at utm.edu<mailto:rpruit10 at utm.edu>>,<ewheeler at utm.edu<mailto:ewheeler at utm.edu>>,<lgibson at utm.edu<mailto:lgibson at utm.edu>>,<shalkias at utm.edu<mailto:shalkias at utm.edu>>,<akeller at utm.edu<mailto:akeller at utm.edu>>,<phewitt at utm.edu<mailto:phewitt at utm.edu>>,<dabel at utm.edu<mailto:dabel at utm.edu>>,<dryan11 at utm.edu<mailto:dryan11 at utm.edu>>,<jdavis at utm.edu<mailto:jdavis at 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 (<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>> [InternalId=7717459] Queued mail for delivery)
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Mar  3 13:35:30 mailman sendmail[22805]: v23JYu9s022801: to=<jjones98 at utm.edu<mailto:jjones98 at utm.edu>>,<pwatkins at utm.edu<mailto:pwatkins at utm.edu>>,<dmccull1 at utm.edu<mailto:dmccull1 at utm.edu>>,<dwilliams-boyd at utm.edu<mailto:dwilliams-boyd at utm.edu>>,<jbyrd24 at utm.edu<mailto:jbyrd24 at utm.edu>>,<ajohn171 at utm.edu<mailto:ajohn171 at utm.edu>>,<jgoyret at utm.edu<mailto:jgoyret at utm.edu>>,<sholt at utm.edu<mailto:sholt at utm.edu>>,<mgibson at utm.edu<mailto:mgibson at utm.edu>>,<jhende33 at utm.edu<mailto:jhende33 at utm.edu>>,<bgiles at utm.edu<mailto:bgiles at utm.edu>>,<lwarren at utm.edu<mailto:lwarren at utm.edu>>,<mtraynom at utm.edu<mailto:mtraynom at utm.edu>>,<blee37 at utm.edu<mailto:blee37 at utm.edu>>,<jjohn324 at utm.edu<mailto:jjohn324 at utm.edu>>,<rjones at utm.edu<mailto:rjones at utm.edu>>,<sdyer at utm.edu<mailto:sdyer at utm.edu>>,<sperry19 at utm.edu<mailto:sperry19 at utm.edu>>,<djorda19 at utm.edu<mailto:djorda19 at utm.edu>>,<cposadny at utm.edu<mailto:cposadny at utm.edu>>,<tharri70 at utm.edu<mailto:tharri70 at utm.edu>>,<gfelts at utm.edu<mailto:gfelts at utm.edu>>,<cnichols at utm.edu<mailto:cnichols at utm.edu>>,<jlavalle at utm.edu<mailto:jlavalle at utm.edu>>,<jschomme at utm.edu<mailto:jschomme at utm.edu>>,<volds at utm.edu<mailto:volds at 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 (<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>> [InternalId=7717507] Queued mail for delivery)
Mar  3 14:41:17 mailman sendmail[24288]: v23JYu9w022801: to=<chaamerw2000 at yahoo.com<mailto:chaamerw2000 at yahoo.com>>,<jesse.kowalewski at sodexo.com<mailto:jesse.kowalewski at sodexo.com>>,<kevin_mclemore at hotmail.com<mailto:kevin_mclemore at hotmail.com>>,<msudzum at worldtrav.com<mailto:msudzum at worldtrav.com>>,<njanemiller25 at gmail.com<mailto:njanemiller25 at gmail.com>>,<sully12980 at aol.com<mailto:sully12980 at aol.com>>,<vlhiggs at gmail.com<mailto:vlhiggs at 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 (<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>> [InternalId=7719913] Queued mail for delivery)
Mar  3 14:42:43 mailman sendmail[24288]: v23JYu9r022801: to=<dsimmons at utm.edu<mailto:dsimmons at utm.edu>>,<emoser at utm.edu<mailto:emoser at utm.edu>>,<epritch2 at utm.edu<mailto:epritch2 at utm.edu>>,<ereed21 at utm.edu<mailto:ereed21 at utm.edu>>,<esimmons at utm.edu<mailto:esimmons at utm.edu>>,<espivey at utm.edu<mailto:espivey at utm.edu>>,<ewhite38 at utm.edu<mailto:ewhite38 at utm.edu>>,<ffackler at utm.edu<mailto:ffackler at utm.edu>>,<gbrown at utm.edu<mailto:gbrown at utm.edu>>,<geckert at utm.edu<mailto:geckert at utm.edu>>,<gibson at utm.edu<mailto:gibson at utm.edu>>,<hknox at utm.edu<mailto:hknox at utm.edu>>,<jash5 at utm.edu<mailto:jash5 at utm.edu>>,<jclark at utm.edu<mailto:jclark at utm.edu>>,<jdonal11 at utm.edu<mailto:jdonal11 at utm.edu>>,<jesbensh at utm.edu<mailto:jesbensh at utm.edu>>,<jforsyt5 at utm.edu<mailto:jforsyt5 at utm.edu>>,<jgreenwood at utm.edu<mailto:jgreenwood at utm.edu>>,<jhahn at utm.edu<mailto:jhahn at utm.edu>>,<jjone239 at utm.edu<mailto:jjone239 at utm.edu>>,<jlamb5 at utm.edu<mailto:jlamb5 at utm.edu>>,<jlongac1 at utm.edu<mailto:jlongac1 at utm.edu>>,<jmack at utm.edu<mailto:jmack at utm.edu>>,<jmathern at utm.edu<mailto:jmathern at utm.edu>>,<jonrmitc at ut.utm.edu<mailto:jonrmitc at ut.utm.edu>>,<jstreet7 at utm.edu<mailto:jstreet7 at utm.edu>>,<jyocum at utm.edu<mailto:jyocum at utm.edu>>,<kcurrie at utm.edu<mailto:kcurrie at utm.edu>>,<kelliot4 at utm.edu<mailto:kelliot4 at utm.edu>>,<kericson at utm.edu<mailto:kericson at utm.edu>>,<kevans31 at utm.edu<mailto:kevans31 at utm.edu>>,<khealy at utm.edu<mailto:khealy at utm.edu>>,<kprzybeck at utm.edu<mailto:kprzybeck at utm.edu>>,<krimfuhs at ut.utm.edu<mailto:krimfuhs at ut.utm.edu>>,<kwill126 at utm.edu<mailto:kwill126 at utm.edu>>,<ldavis at utm.edu<mailto:ldavis at utm.edu>>,<learls at utm.edu<mailto:learls at 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 (<320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu<mailto:320E686FEA4720449A309FC08FC6F49D01023D575A at EXCH2010MBOX2.utm.edu>> [InternalId=7719987] Queued mail for delivery)