How to Enable Archive Mailboxes in Office 365
Instructions
Online archiving is available for mailboxes in Office 365, however this feature is not enabled by default. When archiving is enabled, (see Default Retention Policy in Exchange Online) any mail in the user’s mailbox that is older than 2 years old, will be moved to the archive mailbox. When enabled, the archive will show up in Outlook as Online Archive - <email address>, as shown below.
Typical employees should have an A3 license in O365, which provides a user with a 50GB mailbox and a 100GB archive mailbox, when it’s enabled. However, some of our older users may not have an A3 license applied to their user accounts yet. In this case, they will only have a 50GB archive mailbox, and to increase it you will need to ask uConnect to apply the A3 license to increase the quota to 100GB. To verify the license, go to admin.uinform.ucdavis.edu, find the mailbox in question, and check the O365 tab.
You’ll need to login as a user that has proper uInform/Exchange access. Normally, this is your ad3 admin account, admin-<kerberos>.
You can check the user's mailbox in Exchange Admin Center (https://admin.exchange.microsoft.com/) to verify whether or not the user has archiving enabled and you can also enable it from there. Look up the user mailbox, and go to the Others tab.
You’ll need to login as a user that has proper uInform/Exchange access. Normally, this is your ad3 admin account, admin-<kerberos>.
If you find that the user does not have an A3 license applied to to their account/mailbox, email uConnect at uConnect-Help@ucdavis.edu and request that the license be added.