Forum Discussion
Exchange Online Retention Policies
Where exactly are you seeing this warning? It looks to me like it might be a hard-coded message, but I don't even see it when I enable the mailbox for a test mailbox.
Generally speaking, mailboxes in O365 have a default policy applied to them as part of the mailbox plan, this might be the "Default MRM policy" or a custom one. But you can also configure a mailbox without a policy, if needed.
I'm doing this within the Security and Compliance area of O365 under Information Governance -> Archive.
I never considered the mailbox plan side of things. So currently the mailbox plan on my account has retention disabled. So does that mean that my retention policy is disabled? If I enable the retention on my mailbox, does that override the mailbox plan settings?
It's not disabled, it simply means that no plan is applied upon mailbox creation. You can assign a policy at any time.