Followed the advice from this thread:
Added the connector and used the MX-adress given from O365 admin site.
I decided to rebuild the entire Droplet (from DigitalOcean) after having rebuild the app, to see if that would help. And it did! I now have the forum running and could receive the activation email on my admin account.
However i still can’t receive email when i try to create an account with my personal gmail, I’m getting the following error message in the ‘skipped’ section under email settings in the forum admin page:
5…4 TenantAttribution; Relay Access Denied [HE…-eur04.prod.protection.outlook.com]
Looks like this might be the solution:
But i haven’t tried it yet. I will update once i have time to implement the change from the link.
Quick sidenote - will rebuilding the app mess with any settings i made after activation my admin account?