File vbsfilter.service of Package vbsfilter

[Unit]
Description=VBS filter milter
After=network-online.target

[Service]
#Type=simple
Type=forking
UMask=007
User=root
Group=mail
ExecStartPre=/etc/mail/system/vbs.pre
ExecStart=/usr/sbin/vbsfilter -p unix:/var/run/milter1.sock

Restart=on-failure

# Time to wait before forcefully stopped.
TimeoutStopSec=300

[Install]
WantedBy=multi-user.target