[Unit] Description=Dovecot IMAP/POP3 Proxy After=local-fs.target network.target mysqld.service dbmail-imapd.service dbmail-pop3d.service Before=postfix.service [Service] Type=simple ExecStart=/usr/sbin/dovecot -F NonBlocking=yes Restart=always RestartSec=2 [Install] WantedBy=multi-user.target