High Postfix memory & cpu utilization

is there anything out of the ordinary in the syslog/mail.log/journal ?
 
In a plain old postfix environment, disk space would cause that for me, not sure if you are low on space.
Either data or logging drives ( assuming they're different )
And now that I remember, also security on the folders being postfix.
 
Last edited:
Mail.log doesn't say much:
Code: 
Sep 24 06:00:05 stl-mx postfix/postscreen[24415]: CONNECT from [198.2.175.30]:15918 to [206.196.118.234]:25
Sep 24 06:00:05 stl-mx postfix/postscreen[24415]: WHITELISTED [198.2.175.30]:15918
Sep 24 06:00:06 stl-mx postfix/smtpd[27755]: connect from mail30.suw151.rsgsv.net[198.2.175.30]
Sep 24 06:00:06 stl-mx postfix/smtpd[27755]: Anonymous TLS connection established from mail30.suw151.rsgsv.net[198.2.175.30]: TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)
Sep 24 06:00:06 stl-mx pmgpolicy[28061]: reloading configuration Proxmox_ruledb
Sep 24 06:00:06 stl-mx pmgpolicy[28061]: SPF says pass
Sep 24 06:00:07 stl-mx postfix/smtpd[27755]: 4B0D622765: client=mail30.suw151.rsgsv.net[198.2.175.30]
Sep 24 06:00:07 stl-mx postfix/cleanup[28070]: 4B0D622765: info: header Subject: =?utf-8?Q?Weekly=20Column=3A=20Your=20Best=20Argument=20with=20God?= from mail30.suw151.rsgsv.net[198.2.175.30]; from=<bounce-mc.us14_64478113.1383526-e7f63
96387@mail30.suw151.rsgsv.net> to=<jchilders@web.com> proto=ESMTP helo=<mail30.suw151.rsgsv.net>
Sep 24 06:00:07 stl-mx postfix/cleanup[28070]: 4B0D622765: info: header From: =?utf-8?Q?Bill=20Hull=20||=20The=20Bonhoeffer=20Project?= <bill@thebonhoefferproject.com> from mail30.suw151.rsgsv.net[198.2.175.30]; from=<bounce-mc.us14_6447
8113.1383526-e7f6396387@mail30.suw151.rsgsv.net> to=<jchilders@web.com> proto=ESMTP helo=<mail30.suw151.rsgsv.net>
Sep 24 06:00:07 stl-mx postfix/cleanup[28070]: 4B0D622765: info: header To: <jchilders@web.com> from mail30.suw151.rsgsv.net[198.2.175.30]; from=<bounce-mc.us14_64478113.1383526-e7f6396387@mail30.suw151.rsgsv.net> to=<jchilders@scbcw
eb.com> proto=ESMTP helo=<mail30.suw151.rsgsv.net>
Sep 24 06:00:07 stl-mx postfix/cleanup[28070]: 4B0D622765: message-id=<8283cfac295e60453fc111c70.e7f6396387.20200924105922.8700a30cd4.35d51cdc@mail30.suw151.rsgsv.net>

I get an email that says a bit more:
Code: 
KatyComputer SMTP server: errors from mail30.suw151.rsgsv.net[198.2.175.30]
Contact photo
From MAILER-DAEMON@stl-mx.fastnet1.com on 2020-09-24 06:00
Details
Transcript of session follows.

 Out: 220 stl-mx.fastnet1.com ESMTP Authorized Use Only! Violators will be
     persecuted
 In:  EHLO mail30.suw151.rsgsv.net
 Out: 250-stl-mx.fastnet1.com
 Out: 250-PIPELINING
 Out: 250-SIZE 25728640
 Out: 250-VRFY
 Out: 250-ETRN
 Out: 250-STARTTLS
 Out: 250-ENHANCEDSTATUSCODES
 Out: 250-8BITMIME
 Out: 250-SMTPUTF8
 Out: 250 CHUNKING
 In:  STARTTLS
 Out: 220 2.0.0 Ready to start TLS
 In:  EHLO mail30.suw151.rsgsv.net
 Out: 250-stl-mx.fastnet1.com
 Out: 250-PIPELINING
 Out: 250-SIZE 25728640
 Out: 250-VRFY
 Out: 250-ETRN
 Out: 250-ENHANCEDSTATUSCODES
 Out: 250-8BITMIME
 Out: 250-SMTPUTF8
 Out: 250 CHUNKING
 In:  MAIL
     FROM:<bounce-mc.us14_64478113.1383526-e7f6396387@mail30.suw151.rsgsv.net>
     SIZE=76526
 Out: 250 2.1.0 Ok
 In:  RCPT TO:<jchilders@web.com>
 Out: 250 2.1.5 Ok
 In:  DATA
 Out: 354 End data with <CR><LF>.<CR><LF>
 Out: 451 4.3.0 Error: queue file write error
 In:  QUIT
 Out: 221 2.0.0 Bye

I don't think it's a disk space issue:
Code: 
Filesystem                    Size  Used Avail Use% Mounted on
rpool/data/subvol-100-disk-0   30G  4.8G   26G  16% /
none                          492K  4.0K  488K   1% /dev
udev                           16G     0   16G   0% /dev/tty
tmpfs                          16G  8.0K   16G   1% /dev/shm
tmpfs                          16G  185M   16G   2% /run
tmpfs                         5.0M     0  5.0M   0% /run/lock
tmpfs                          16G     0   16G   0% /sys/fs/cgroup
 
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