Like all mail-enabled objects, Office 365 Groups can have multiple proxy addresses. Microsoft has fixed a bug in the Set-UnifiedGroup cmdlet so that you can remove proxy addresses from groups, but take care before you do.
The Search-Mailbox cmdlet is very powerful when it comes to removing items from Exchange Online mailboxes, but it can’t deal with other Office 365 content.
A recent post by MVP Mark Vale describes how to use synchronization transformation rules in AADConnect to change the last name, first name format (for example, Smith, James) for display names to a more user-friendly first name last name format (our example becomes James Smith) for accounts as they synchronize to Azure Active Directory from an …
Microsoft issued a new wizard to delete Office 365 accounts last week. It has the normal quota of cute graphics and some glitches to boot, but the wizard gets the job done in terms of converting a user mailbox into a shared mailbox and reassigning access to their OneDrive for Business account.