Postfix/bounce error

Feb 21, 2022
We are getting these errors lately
Any ideas?

Aug 18 08:18:18 pmg3 postfix/bounce[304344]: warning: [built-in]: zero result in delay template conversion of parameter "maximal_queue_lifetime_days"
I guess you have some modification to the postfix configuration (probably to settings for the queue lifetime) - in that case it might be that the setting is too low...
please provide:
* any modifications to the configuration you did (probably through a template in /etc/pmg/templates)
* pmgversion -v
Have not modified any templates

The only changes we have made is to

add a queue monitor ( code found here on forum)
add subject to syslog
turn on rsyslog to combine all 3 of our nodes logs so that tracking center shows all 3 nodes.

root@pmg1:/etc/pmg/templates# pmgversion -v
proxmox-mailgateway: 7.3-2 (API: 7.3-8/d5acb693, running kernel: 5.15.108-1-pve)
pmg-api: 7.3-8
pmg-gui: 3.3-2
pve-kernel-5.15: 7.4-4
pve-kernel-5.13: 7.1-9
pve-kernel-5.15.108-1-pve: 5.15.108-2
pve-kernel-5.15.107-2-pve: 5.15.107-2
pve-kernel-5.15.104-1-pve: 5.15.104-2
pve-kernel-5.15.102-1-pve: 5.15.102-1
pve-kernel-5.15.85-1-pve: 5.15.85-1
pve-kernel-5.15.83-1-pve: 5.15.83-1
pve-kernel-5.13.19-6-pve: 5.13.19-15
pve-kernel-5.13.19-2-pve: 5.13.19-4
pve-kernel-5.13.19-1-pve: 5.13.19-3
clamav-daemon: 0.103.8+dfsg-0+deb11u1
ifupdown2: 3.1.0-1+pmx4
libarchive-perl: 3.4.0-1
libjs-extjs: 7.0.0-1
libjs-framework7: 4.4.7-1
libproxmox-acme-perl: 1.4.4
libproxmox-acme-plugins: 1.4.4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.4-2
libpve-http-server-perl: 4.2-3
libxdgmime-perl: 1.0-1
lvm2: 2.03.11-2.1
pmg-docs: 7.3-3
pmg-i18n: 2.12-1
pmg-log-tracker: 2.3.2-1
postgresql-13: 13.11-0+deb11u1
proxmox-mini-journalreader: 1.3-1
proxmox-offline-mirror-helper: 0.5.2
proxmox-spamassassin: 4.0.0-2
proxmox-widget-toolkit: 3.7.3
pve-firmware: 3.6-5
pve-xtermjs: 4.16.0-2
zfsutils-linux: 2.1.11-pve1
Last edited:
please show your:

the line:
maximal_queue_lifetime = 8h
in causes the warning - and this is not in the shipped template - so I'd assume you have added to a template override - see the reference documentation:

additionally it seems as if your template does not include the latest changes shipped by us (you can compare your template to /var/lib/pmg/templates/

I hope this helps!


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