When the archive mailbox (including the Recoverable Items folder) reaches 90 GB, it's converted to an auto-expanding archive, and Microsoft 365 adds storage space to the archive until it reaches a maximum size of 1.5 TB. An archive mailbox with 100 GB of storage space is created, and the warning quota for the archive mailbox is set to 90 GB.Īn administrator enables auto-expanding archiving for the mailbox. This process happens automatically, which means administrators don't have to request additional archive storage or manage auto-expanding archiving.Īrchiving is enabled for a user mailbox or a shared mailbox. This process continues until the user's archive reaches a size 1.5 TB. If the user runs out of this additional storage space, Microsoft 365 adds more storage space to the user's archive.

When an archive mailbox gets close to its storage limit, Microsoft 365 automatically creates additional storage space for the archive. When auto-expanding archiving is enabled, Microsoft 365 periodically checks the size of the archive mailbox. How auto-expanding archiving worksĪs previously explained, additional mailbox storage space is created when a user's archive mailbox is enabled. To enable the archive for a shared mailbox, an Exchange Online Plan 2 license or an Exchange Online Plan 1 license with an Exchange Online Archiving license is required. Office365 is constantly improving and making our lives as Office 365 administrators easier.Auto-expanding archiving also supports shared mailboxes. Log into the portal as a tenant administratorĬlick and expand the Users menu and click Active usersĬlick on the user you want to set the out of office on and scroll down to the Mail Settings section.Įxpand the Mail Settings and click on Edit to update the out of office messages.Įnable Automatic replies, enter your out of office messages for internal and for external users, check the settings and click Save. Now its even easier in Office 365, you can now update a users out of office message from the admin portal with ease! In the dark ages it was such a chore, having to find out their password to login as them or assign permissions to your general admin account. This is usually because the’ve forgotten to do it themselves before going on holiday. If you’ve worked in IT for long enough you will eventually have to deal with a request to update a users out of office.

Outlook 365 out of office