Forum Discussion

Iron Contributor

Jul 10, 2018

Exchange Online, Retention Policies. For Mailboxes.

Hey Guys, Quick question here, i am trying to understand if you can create a new retention policy in exchange online and have it set as default, so that all new mailboxes will be assigned that n...

MVP

Jul 11, 2018

The correct way to change the default retention policy in ExO is via the mailbox plans.

Get-MailboxPlan | Set-MailboxPlan -RetentionPolicy "New MRM policy"

This simple example will set it on all plans, but you can configure it on specific ones if needed. Remember that mailbox plans apply to newly created mailboxes only, so for any already existing ones you still have to apply the retention policy via the EAC or via Set-Mailbox.

Robert Bollinger

Iron Contributor

Jul 11, 2018

Thanks. I was not familiar with that command. Is the Get/Set mailbox plan used by tenant admins frequently? I thought it was specific to hosting only solutions (not office 365).

Looking through the Set commands it looks like basically all of the options available to set-mailbox are also available to set-mailboxplan.

When would you modify a mailbox plan ? vs. just modifying an existing mailbox with set-mailbox? Trying to understand when to use one command vs the other.

Thanks,

Robert