We found that one of our projects is filling up the error mail queue.
The project is trying to send emails to the project email address, the one that the outgoing emails are configured to go out from, but is not accepting incoming email traffic. This happens only in the case of this particular project, but the notification scheme does not have any unique settings, it contains sending notifications to the standard current assignee, and two project roles that we use.
In the project roles there are the normal users we have in several other projects, where we don't have any issues with notifications.
I've pretty much stared at the notification scheme for hours, not getting any closer to actially seeng anything wrong there. I'm stuck.
We are running Server, v8.13.6
Has anyone encountered such a situation when the notifications are going to an email they arent supposed to go to?