[Unit]
Description=Postfix greylisting policy server
Documentation=man:postgrey(8)
Before=postfix.service
Before=exim4.service

[Service]
Type=simple
Environment=POSTGREY_TEXT="Greylisted, see https://postgrey.schweikert.ch/help/%H.html"
EnvironmentFile=-/etc/default/postgrey
ExecStart=/usr/sbin/postgrey \
 $POSTGREY_OPTS \
 --greylist-text="${POSTGREY_TEXT}"
Restart=always
RestartSec=1
TimeoutSec=5

[Install]
WantedBy=multi-user.target