L3 - Default
I have setup an alert using a webhook and have not configured an email server as I don't use it.
The alert get's triggered
I see a warning in the log:
11:58:08.077 [QuartzScheduler_Worker-3] WARN o.c.o.s.a.EmailNotificationService - The email service is not enabled and thus no email could be sent. Please check the Optimize documentation on how to enable email notifications!
If the particular alert is not using email recipients we should not log this warning