Can I mirror a mailbox in Exchange 365

I had this request sent to me and I am not sure how to set this up or if it is even possible.

"Can you please have an email set up for John Doe ( It should mirror Jane Doe’s account ( for now so that anytime Jane receives an email, it’s in John’s inbox, and anytime Jane sends one, it’s in John’s sent mail."

I know I can forward incoming mail to a second location, but the sent item part is a question
Who is Participating?
Gareth GudgerConnect With a Mentor Commented:
You could create a rule like this. I did this on 2013, but should have the same options in O365. So, for every message my user Amy Pond sends, the message is blind carbon copied to another account. In this case the Doctor. The Doctor could also have a rule to sort any message like this into a folder.

If you didn't want every message from Amy Pond to go to that folder (just the items she sent to others and not you) you could modify the subject in the same rule by add action button.

Gareth GudgerCommented:
I don't have an Office 365 account handy to try this. But I am fairly certainly you can do this with a Transport Rule.

More on Office 365 Transport Rules here.

I know its possible in Exchange on premise.
Network ZeroCloud Engineer Commented:
Something like this using the transport rules - I'll get some better information a bit later.

You'll want the online server handling the request
Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

Manoj BojewarCommented:
This is very much possible through two transport rule, one for incoming mails and other for sent mails. You can create one duplicate mailbox in office 365 and setup transport rule like any mails come and sent from your primary ID should deliver to cloud duplicate mailbox.
markpg47Author Commented:
This worked as needed!
Gareth GudgerCommented:
Glad to help!
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.