Test mail works <> Mail notifications don't work

[NextClaus]

I observed the same issue which is described here:

Enable notification emails (Activity app) - not work

Here I put a tick. After reloading the page, the check mark disappears. Accordingly, notifications by mail do not work. [Capture]

Activity Emails not sent

Yes, it is. Please note that unchecking the box works (SQL is altered). In the opposite, checking the box doesn’t mark the SQL field as “yes”.

We also fixed it on database level. Although the checkbox stays “enabled” now, there are no notification emails