zabbix did not send email alert

[FilipHajek]

Hello,
I have started testing zabbix for implementation and my email sending from zabbix is not working.
I have everything configured and the email still doesn't arrive.
The user to whom the email is sent exists and has a completed email.
trigger set and working
the email is sent 7x24
email service configured to smtp over port 25

is there a log somewhere in the OS that shows zabbix attempting to send an email?
I'm using appliance 6.4.6

for now I use smtp.volny.cz (free webmail with smtp access) because I don't have access to the company smtp
I also tried google mail and nothing come.

so I would like to see some log if zabbix is even trying to send email.
there is some log in zabbix where should be visible attempt of sending email?

Thank you. Filip

[mackane]

Hello,
you need to make sure that port 25 is open,
This is not the case by default on the zabbix appliance.
Below are the ports that are open by default:
Firewall configuration
The appliance uses iptables firewall with predefined rules:

Opened SSH port (22 TCP);
Opened Zabbix agent (10050 TCP) and Zabbix trapper (10051 TCP) ports;
Opened HTTP (80 TCP) and HTTPS (443 TCP) ports;
Opened SNMP trap port (162 UDP);
Opened outgoing connections to NTP port (53 UDP);
ICMP packets limited to 5 packets per second;
All other incoming connections are dropped.

[FilipHajek]

Hello,
thank you for information,
i was test is by telnet smtp.volny.cz 25 and its connected and works well,
i know that incoming (to zabbix) port 25 is closed , but i am outgoing from zabbix to smtp.volny.cz and gvia telnet works well,
this is reason why i am looking for log file on zabbix machine where will be visible some traffic or attempt to send email.
if there is no log file i wil use tcpdump to see packets.

maybe some debug log mode on zabbix server will help, it is possible to turn it on?

Thank you Filip

[vijayk]

You can enable it from server config file.

[FilipHajek]

even if i change to level 4 there is no mention about email send....

[vijayk]

even if i change to level 4 there is no mention about email send....

You can check the trigger email status at Monitoring-->Problems. It will show you if mail is sent or not.

[FilipHajek]

no, i dont have any icon here or any information in report/actions

[FilipHajek]

here is problem visible at dashboard

[mackane]

Sorry for my late replies,
thanks @vijayk
as well as this control,
the zabbix user that you use to send mail must have read rights on the host groups

[FilipHajek]

i have selected administrator rights for the user, but i will chek it, thank you Filip

[FilipHajek]

this is definition of item


this is definition of trigger


user definition and his email addresses






definition of email

[FilipHajek]

definition of alert action (item ping 8.8.8.8 created on zabbix host)




detail of action/operation


maybe there is some error in action, because trigger looks ok and problem is visible on dashboard,
but i did not see the error in my settings

thank you Filip

[vijayk]

Your condition is wrong. You have to select trigger instead of Host in Action.

[cyber]

Your condition is wrong. You have to select trigger instead of Host in Action.

No you don't... Why do you think there is an option to choose host, if it is wrong?

https://www.zabbix.com/documentation/current/en/manual/config/notifications/action/conditions

[vijayk]

No you don't... Why do you think there is an option to choose host, if it is wrong?
https://www.zabbix.com/documentation...ion/conditions

May be you are right. But he need only one trigger alert.

[cyber]

May be you are right. But he need only one trigger alert.

he may need an email for one trigger, but how to define an action here is irrelevant, is it based on trigger or based on host. Result is the same - email gets sent.
But I am pretty sure it is a testing scenario here, and OP will change things around when something real needs to be done.

I still have a feeling, there is something with user permissions here... Something too obvious, that I cannot put a finger on it..