Originally Posted by LVsFINEST
More than likely, nothing changed. Daemons can die for any number of reasons, and that appears to be the case here. You could check /var/log/mail.log for clues, maybe it'll tell you what happened.
Yea did that and saw this clue:
May 6 07:43:04 nagiossrv sendmail: o46Eh4bx020128: firstname.lastname@example.org, ctladdr=nagios (1001/1002), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30319, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]
Not so sure why this is the case "Connection refused.."
I've checked levels on to 235 and restarted still giving me:
service sendmail restart
* Restarting Mail Transport Agent (MTA) sendmail 554 5.0.0 No local mailer defined
554 5.0.0 QueueDirectory (Q) option must be set [ OK ]