How do i figure out why i'm not getting alerts?

I’ve configured SMTP correctly and i get test emails. I even registered an external secondary gmail and i’m getting the confirmation email.
But i havent received any alert emails for a month. I upgraded from 8 to 9.1.2, but no changes. Test emails still work, but still no alert emails.
I ran bashed into docker and confirmed queues are empty, with “sentry queues list”.
New events are coming in, so how do i figure out where the mails go or why they arent going out?

Have you checked our docs out around alerts: