Hi,
thank you for your answer!
Ok, this is a new information for me that I also have to fill in mailNickname, ManagedBy and proxyAddresses attributes.
I have done this for one distribution group. I have configured these values:
DisplayName: Vsi profesorji tmp
mailNickname: group.vsi-profesorji-tmp
ManagedBy: (i have selected one of the AD users)
proxyAddresses: SMTP:group.vsi-profesorji-tmp@domain.si
mail: group.vsi-profesorji-tmp@domain.si
But this group is still not synced to Exchange Online.
Thank you!
Best wishes,
Marko