I have a question regarding Exchange Online and S/MIME Encryption.
The Exchange Server and ActiveDirectory Infrastructure has moved completely to the Cloud. No onpermises Exchange Server and no on premises Domaincontroller.
In the past I was able to Import the S/MIME certificates manually over AD UC (Active Directory Users and Computers). But since there is no Domain controller locally I can not find a way to Import the certificates. Normally the users are using Outlook Client to publish their own S/MIME Certificate to the GAL. But sometimes the Outlook button "publish to GAL" is missing (espacially when multiple Outlook Accounts are configured, or when Users are working on Outlook for Mac). At this Point I imported these certificate with the help of AD UC.
How can I realize this now without any on premises Domaincontroller?
Thanks for your help