

You may not be able to see the Exchange Online Archive mailbox in an older I've already got my business rules #1) to create the Office 365 mailbox in Office 365 and #2 activate their license (we have E3 licenses). A Simple One Line script on a scheduled task will help you automate enabling archive mailboxes in Office 365. As previously explained, the user's archive mailbox (main archive) must be enabled before you can turn on auto-expanding archiving for that user. With the unlimited archiving feature, Office 365 mailboxes provide users up to 1 TB of archiving space in such a way that the mailbox continues to expand generating additional storage space without needing permissions till the aforementioned limit.
