[root@kolab ~]# service amavisd status Redirecting to /bin/systemctl status amavisd.service amavisd.service - Amavisd-new is an interface between MTA and content checkers. Loaded: loaded (/usr/lib/systemd/system/amavisd.service; enabled) Active: failed (Result: start-limit) since Mon 2015-07-06 09:23:36 EDT; 45min ago Docs: http://www.ijs.si/software/amavisd/#doc Process: 465 ExecStart=/usr/sbin/amavisd -c /etc/amavisd/amavisd.conf (code=exited, status=227/NO_NEW_PRIVILEGES) Jul 02 05:46:43 kolab.qi.fr systemd[4235]: Failed at step NO_NEW_PRIVILEGES spawning /usr/sbin/amavisd: Invalid argument Jul 02 05:46:43 kolab.qi.fr systemd[1]: amavisd.service: control process exited, code=exited status=227 Jul 02 05:46:43 kolab.qi.fr systemd[1]: Failed to start Amavisd-new is an interface between MTA and content checkers.. Jul 02 05:46:43 kolab.qi.fr systemd[1]: Unit amavisd.service entered failed state. Jul 02 05:46:43 kolab.qi.fr systemd[1]: amavisd.service holdoff time over, scheduling restart. Jul 02 05:46:43 kolab.qi.fr systemd[1]: Stopping Amavisd-new is an interface between MTA and content checkers.... Jul 02 05:46:43 kolab.qi.fr systemd[1]: Starting Amavisd-new is an interface between MTA and content checkers.... Jul 02 05:46:43 kolab.qi.fr systemd[1]: amavisd.service start request repeated too quickly, refusing to start. Jul 02 05:46:43 kolab.qi.fr systemd[1]: Failed to start Amavisd-new is an interface between MTA and content checkers.. Jul 02 05:46:43 kolab.qi.fr systemd[1]: Unit amavisd.service entered failed state. [root@kolab ~]# [root@kolab ~]# postqueue -p -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient------- DD866188A082 365 Wed Jul 1 11:57:28 toto.martin@qi.fr (connect to 127.0.0.1[127.0.0.1]:10024: Connection refused) toto.martin@qi.fr -- 1 Kbytes in 1 Request. You have mail in /var/spool/mail/root [root@kolab ~]# /etc/init.d/clamd stop LOG Jul 1 13:28:03 kolab clamd[3741]: SelfCheck: Database status OK. Jul 1 13:34:48 kolab postfix/qmgr[11624]: DD866188A082: from=, size=365, nrcpt=1 (queue active) Jul 1 13:34:48 kolab postfix/smtp[20438]: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused Jul 1 13:34:48 kolab postfix/smtp[20438]: DD866188A082: to=, relay=none, delay=5840, delays=5840/0.01/0/0, dsn=4.4.1, status=deferred (co$ Jul 1 13:38:03 kolab clamd[3741]: SelfCheck: Database status OK.