Mail delivery not working, although Transports are triggered

Tarnsports are triggered but emails not sent :frowning:

You’ve selected a Role of Admin, choose None if you want it going to that specific email address.

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thanks for your hint, but i selected already “none” before and i can see in the event log "Issued critical alert for rule ‘XYZ’ to transport ‘mail’ that emails should have been triggered. If i send a test mail via cli from the server as user librenms mail delivery works without problem…

… and how can i enable the new alerting system?

answer: the old alerting system was enabled through the line
$config[‘alerts’][‘email’][‘enable’] = TRUE; in the config.php file, now since i removed it, output of validate.php looks like before:

I tried this in the hope email delivery will work then, but emails are still not triggered, although i see transports in the event log.

Try running the transport and template tests for the rule you have setup: Testing - LibreNMS Docs

Thanks, I have done these tests, they are working, but emails are not triggered, but i can send as user librenms directly from the cli test emails (e.g. with swaks) without any problems…

What are you setting as your client for sending out? Are you using a real email address for sending or a “virtual” email.?