mailman3-web-quarter_hourly.timer

[Unit]
Description=GNU Mailing List Manager 3 Web UI / run quarter hourly: mailman3-web-quarter_hourly.service

# run only if main service is running
PartOf=mailman3-web.service
After=mailman3-web.service

[Timer]
OnBootSec=5min
OnUnitActiveSec=15min
RandomizedDelaySec=30
#FixedRandomDelay=true
Persistent=true

[Install]
WantedBy=timers.target mailman3-web.service