|Subject:||Port 25 check cause of "Unable to open a socket to Sendmail" error?|
|Date:||Thu, 11 Apr 2019 09:18:06 +0100|
Since configuring a check for Sendmail Iâve started seeing an error from our CodeIgniter PHP application for the first time:
Exit status code: 75
The check is:
check process sendmail with pidfile /var/spool/postfix/pid/master.pid
start program = "/bin/systemctl postfix start"
stop program = "/bin/systemctl postfix stop"
restart program = "/bin/systemctl postfix restart"
if failed port 25 protocol smtp then restart
if 3 restarts within 5 cycles then unmonitor
Iâm assuming then, that the port is unavailable to other services that need it if Monit is checking it?
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