Nagios Support Forum

You should be checking the mail log as well, try to cause an alert to be sent out, or send a custom notification from one of your objects that should be alerting via a contact, then show the output of the following: tail -25 /var/log/maillog Nothing in log, just old yesterday entrys, when i send em...

Hello, I just setup nagios core 4.0.2 (CentOs 6.5) + check_mk, and I don't receive any email messages about alerts. In nagios.log I found following entry EXTERNAL COMMAND: SEND_CUSTOM_HOST_NOTIFICATION;DC-NAGIOS2;0;Nagios Admin;125689 [o1392202959] HOST NOTIFICATION: PavlovP;DC-NAGIOS2;CUSTOM (UP);c...