No alerts and email notifications

[tkaiser_ikoffice]

Hi there,

i'm running a SMF 2.14 on a debian 11 server with php 8.2. I've configured exim and the sendmail function so that php can send emails. The testmail via smf is recieved correctly.
I've checked the database "smf_user_alerts_prefs" has all the flags set for my test users, but the "smf_user_alerts" table is empty. I also tested it manually (i created answers and new topics, so that users normally would get alerts and notifications).

I'm a developer myself with some php experience and i have read some of the older topics adressing this issue. None of them had a solution, it just seems that your mailing system is broken.

Is there a common fix?

Thanks in advance 

[Kindred]

Alerts are not normally emails in 2.1.x....

[tkaiser_ikoffice]

Let's focus on the email notifications first.
Do you have a recommendation what i can do here?

[shawnb61]

Any errors in the smf error log?
The apache error log?

Have the users opted in to receiving emails?   (The very first box on the notifications form?)

Have the users subscribed to receive emails for any topics or boards? 

[Kindred]

Also, Have you correctly configured your server with DMARC and other DNS settings?