Convert mail user to user mailbox

A simple question!

To convert a Mail User to a User Mailbox in Exchange, you can follow these steps:

Using the Exchange Management Console:

1. Open the Exchange Management Console.
2. Navigate to the "Recipient Configuration" node.
3. Right-click on the "Mail User" you want to convert and select "Convert to User Mailbox".
4. Follow the wizard to complete the conversion.

Using PowerShell:

1. Open PowerShell and connect to your Exchange server using the following command: Connect-ExchangeServer -Auto
2. Run the following command to convert the Mail User to a User Mailbox: New-Mailbox -Identity <MailUserAlias> -UserMailbox

Replace <MailUserAlias> with the alias of the Mail User you want to convert.

Note: Before converting a Mail User to a User Mailbox, make sure that the Mail User has a valid email address and that the email address is not already in use by another mailbox.

Also, keep in mind that converting a Mail User to a User Mailbox will move the user's email messages, calendar, and contacts to the new mailbox. The Mail User will no longer exist as a separate entity, and the user will need to use the new mailbox to access their email and other data.