Q: My actions do not work.
A: Make sure the user you want to send notifications to has read permission to at least one of the hosts that participated in generating the event. Since version 1.6.3, Zabbix does not perform actions for users who do not have sufficient permissions.
Q: My e-mail notifications are not sent, and I can see error messages like
[127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
in e-mail server log files.A: These messages are most likely caused by Zabbix monitoring the SMTP service, not by notification attempts. Check the permissions as mentioned above and check the action log in Administration | Audit to find out why notifications are failing.
Q: I misconfigured an action by enabling escalations or recovery message without adding a condition for trigger to be in a problem state (explained in Chapter 6, Acting upon monitored conditions), and now I am receiving notifications constantly, even after adding the correct condition. Can I solve that?
A: There is one harsh method to stop these escalations, which would never stop on their own - you can delete all the currently active escalations. Beware, this will also remove correct escalations. In the correct database, execute:
mysql> delete * from escalations;
Since Zabbix version 1.8.2, unwanted escalations can be resolved by adding the proper action condition and making the affected triggers change their state.