To change a Shared Mailbox to a User Mailbox:
- In Office 365 Admin center, click Show All and then click Exchange.
- In Exchange Admin Center, go to recipients > shared.
- Select the Shared Mailbox that you want to convert to User Mailbox.
- Click Convert under Convert to Regular Mailbox.
If you need to take the data from the shared mailbox and put it in a valid user mailbox, you can do this:
- Create the new user account, give it a license, provision a mailbox.
- Use New-MailboxRestoreRequest to copy the data from the old shared mailbox to the new target user mailbox.
Go to recipients > shared.
- Now, open the properties of the shared mailbox by double-clicking it and assign permission to users.
- After assigning permission click save. In this way you can convert a user mailbox to shared mailbox. …
- You can also convert shared mailbox back to user mailbox. Type following cmdlet in EMS.
A shared mailbox is a type of user mailbox that doesn’t have its own username and password. As a result, users can’t log into them directly. To access a shared mailbox, users must first be granted Send As or Full Access permissions to the mailbox.
When you convert a user’s mailbox to a shared mailbox, all of the existing email and calendar is retained but can be accessible to any users with delegated access to the mailbox.
According to the Microsoft docs, the user's onedrive is retained. But if you create a shared mailbox from scratch, it doesn't contain a onedrive folder.
More than one person can have “full access” to a Shared Mailbox. This level of access allows: the mailbox to be added as a separate account in Outlook 2010, 2011, 2013, and 2016 for Windows or Mac OS. the user to “send as” and “send on behalf of” the mailbox.
In order to forward the shared email to more than 1 user, create a distribution list and use the email address of the distribution list as the forward for the shared mailbox.
To access a shared mailbox, a user must have an Exchange Online license, but the shared mailbox doesn’t require a separate license.
Use the new Exchange admin center to convert a mailbox
- In the EAC, go to Recipients > Mailboxes. …
- Select the user mailbox or a shared mailbox that you want to convert into its other type, and click on the display name.
- From the More actions pane, click Convert to regular mailbox or Convert to shared mailbox.
For converting the mailboxes using Admin canter, first of all Open the EAC in your browser. Inside it, navigate to the Recipients tab at the left of the window & select any of the mailbox among the list. Thereafter, click on the option “Convert to Shared Mailboxes” at the right of the Window.
How do I convert a mailbox to a resource mailbox?
To convert any regular (user) mailbox to a resource mailbox, use the Set-Mailbox cmdlet in PowerShell. You also need to provide the appropriate Type parameter, i.e. Room or Equipment, depending on the type of resource mailbox you want to get.
A shared mailbox doesn’t have its own user name and password. You can’t log into a shared mailbox directly using Outlook or Outlook Web App (OWA).
Shared Mailbox: A mailbox that’s not primarily associated with a single user and is generally configured to allow logon access for multiple users. User Mailbox: A mailbox that’s assigned to an individual user in your Exchange organization.
Send mail from the shared mailbox
Click From in the message, and change to the shared email address. If you don’t see your shared email address, choose Other email address and then type in the shared email address. Choose OK. Finish typing your message and then choose Send.