Smtp not working


I have the same issue here: I do not receive alerts through an SMTP server. The settings look good to me and I am sure my SMTP relay works because it is used daily by other of my servers. Do you need information to help solve the problem?

Thank you.
Best regards,


Yes. Without info its impossible to know what happens to your configuration.

Whats your Global Settings -> Alerting -> Email Options configuration? Put a screenshot obscuring sensitive data.

Have you configured a mail transport? If yes, put also a screenshot of it.

Also, what happens when you test the transport?


Thank you for the answer. Please find attached the screenshots:

I tested the transport with the following command:
# /opt/librenms/scripts/test-alert.php -r 1 -h xxxx

Nothing happened because I think it is okay.
If you want I can send you the result with debug option.


If you click the Test transport button, what do you get? Its the yellow check in the transports list.

I did not know there was a test button. Thanks.
I clicked on the button:

And I received an e-mail in my inbox. Great.

Also, I created an alert when one of my switches is down for 1 minute.
I would like to know if there is a way to fake that alert?
Because my switches are in production and I cannot turn one off for testing.


If you dont get the mail when the alert happens, its almost for sure a template issue.

Create a new alert that will fire. For example, macros.device_down = 0 AND devices.device_id = DEVICE_ID

The device_id is to dont get the alert with ALL your UP devices :wink:

Good idea!
I have tested your alert and it works.

Thanks for the tip and your help.