Converting one type of mailbox to another type is possible in Exchange environment, and you can complete the task with the help of Set-Mailbox command in the Exchange Management Shell. Here are the types of mailbox(es) which you can convert in Exchange –
User mailboxes It is the basic type of mailbox that is assigned to Exchange users. So, it is called a user mailbox. It helps users in sending or receiving the message, creating/managing contacts, scheduling meetings, etc. Also, user mailboxes can choose to receive voicemails in it.
Shared mailboxes An Exchange administrator can create a shared mailbox to provide access to multiple users. Shared mailboxes are not directly connected with any account, but after creating a shared mailbox, administrators can give permissions to multiple users to use the shared mailbox.
Room mailboxes A Room mailbox is specifically created to utilize as a resource of the organization. A room is created for meeting locations like conference rooms, meetings rooms, training rooms, and auditoriums.
Equipment mailboxes Equipment mailbox is a resource mailbox which can be associated to portable devices like microphones, projectors, laptops, cars, etc.
Now, There are Different Types Conversions Which You Can Perform Using the Exchange Shell Commands
User mailbox to shared mailbox.
Shared mailbox to user mailbox.
Equipment mailbox to shared mailbox.
Room mailbox to shared mailbox.
Shared mailbox to room mailbox.
Shared mailbox to equipment mailbox.
Convert the type of mailbox using Exchange Management Shell
To convert the type of mailbox and its password, use the following cmdlet–