Alerts from cPanel server monitoring

Looks like you have made some changes in exim configuration and the service at the moment is down. Read the email that you are receiving carefully. These emails nothing but alert of service down. You will need to fix the exim service.

 

I would guess you are using exim on port 26 and it indicates in the alert you received that chkservd cannot connect to 127.0.0.1:26

As the notification states - the first and most important thing to ascertain is whether these are false positives, or if the services were actually down......in which case you may have much bigger problems

Assuming the alerts are as a result of false positives, follow the instruction for each alert, one by one, until you have resolved the issues.

As far as the other services are concerned, you may need to revise firewall access from 127.0.0.1 to the ports that they listen on. For full information on ports that should be configured please see How to Configure Your Firewall for cPanel Services - cPanel Knowledge Base - cPanel Documentation

Additional information on the TailWatch / chkservd services are available at TailWatch - cPanel Knowledge Base - cPanel Documentation

You may also want to check that access by localhost to any of the monitored services have not been blocked by Host Access Control entries.