OS X server 5 mail service missing when adding account
Hi!
I am reviving my knowledge on OS X server and have just migrated my secondary business to OS X server 5.2 on El Capitan on an OLD Mac mini Server. Everything seems to work OK except for one thing...
When adding the OS X server account on macOS Sierra and iOS 10 devices the mail and notes part of the account doesn't show up?!?
At first it did, but then it stopped showing up.
Adding the account adds contacts, calendar, VPN, reminders and file sharing just fine.
If I go and add a mail account separately, it works just fine too! so there is no problem with the service in itself.. mail works as it should. sending and receiving mail too.
I have restarted services and the server itself to try resolving this, but no change.
Has anyone else experienced this behavior?
MacBook Pro with Retina display, OS X El Capitan (10.11.3)