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Learn How to Reconnect a Disconnected Mailbox in Exchange Server 2016

Reconnect Disconnected mailbox in Exchange Server 2016

This blog will describe different ways of how to reconnect a Disconnected mailbox in Exchange Server 2016. In Microsoft Exchange 2016, users may wish to get back disconnected mailboxes in various different scenarios. They may want to reconnect the mailbox to the same Active Directory user account or a different Active Directory user account.

In many cases, users also want to reconnect the mailboxes to a newly created mailbox or also to a linked mailbox that is associated with your account in which your Exchange Server resides.

Manual Techniques of How to Reconnect a Disconnected Mailbox in Exchange Server 2016

When it comes to reconnecting the disabled mailbox that is either deleted or removed then, there are two ways that are capable to recover deleted files from Exchange Server mailbox efficiently.
1. Using the Exchange Administrative Center (EAC):
(i) Using EAC: If the mailbox is disabled then you can follow the below discussed steps to recover disconnected mailboxes for the user’s account.

  • From Exchange Server EAC, Navigate to RecipientsMailboxes.
  • Click More options →Select Connect a mailbox option. After clicking this, all the disconnected mailboxes of the Exchange Server will become visible irrespective of soft or hard deletion.
  • Click the disabled mailbox → Click on the connect tab to get back the deleted mailbox.
  • Click Yes from the pop up appeared to reconnect the mailbox.

(ii) Using Shell: In this approach, you are required to make use of the Connect-Mailbox cmdlet in the Shell to reconnect the disabled mailbox. Along with this, you are also required to specify the type of mailbox to which you are connecting.

All the syntaxes for reconnecting ‘linked’, ‘shared’, and ‘user’ inboxes are discussed in the sections below:

Disconnected Mailbox in Exchange Server 2016

The syntax discussed above explains a ‘user mailbox’ that connects to the parameters ‘identity’ and ‘User’ which specifies the disconnected mailbox in Exchange Server 2016 and Active Directory user account respectively to connect the mailboxes.

Disconnected Mailbox in Exchange Server 2016

The various different factors which are used in the above-discussed syntax connecting to a ‘linked mailbox’ represents:

  • Identity: Deleted mailbox in Microsoft Exchange Server 2016.
  • Linked Master Account: represents the Active Directory user account, where you want to get back the mailbox.
  • Alias: stands as a part of the email address which is on the left side of the ‘@’ symbol for the inbox.

Reconnect Disconnected mailbox in Exchange Server 2016

There is an example stating shared mailbox connection

Note: If the Alias parameter is not incorporated when the command Connect-Mailbox cmdlet is run, the values described in the ‘User’ or ‘LinkedMasterAccount’ parameter will help to create the email address alias for reconnecting the disabled mailbox.

2. Using New-MailboxRestoreRequest cmdlet:

This approach is based on merging the data of the existing mailbox with the disconnected mailbox. Mailbox Replication Service is used by New-MailboxRestoreRequest cmdlet for reconnecting the Disconnected Mailbox in Exchange Server 2016

Now, for the creation of a mailbox reconnection request, the display name, mailbox GUID, or legacy distinguished name is mandatory to be displayed which has been deleted. For this, you need to use Get-MailboxStatistics cmdlet.

Follow the commands which are described below:

Disconnected Mailbox in Exchange Server 2016

Disadvantages of Manual Techniques

The above-discussed Manual Techniques possess some of the limitations which are described below:

  1. Requires technically sound user
  2. More complex procedure
  3. Lengthy and time-consuming process

Third-Party Software

Users can use a third-party utility to recover disconnected mailboxes in Exchange Server. SysTools Exchange Recovery Tool is capable to restore the mailbox efficiently and effectively. It not only provides a user-friendly interface but also comes with a guide that helps the user to successfully restore the removed mailbox.

Download  purchase

Key Features Of Professional Software

  1. The tool supports private and public EDB file
  2. Maintains actual folder structure and data integrity
  3. It recovers the highly corrupted and purged Exchange Mailboxes
  4. Software provides the option to remove email encryption (SMIME/OpenPGP)
  5. User can preview Exchange Mailbox data items: emails, contacts, calendars, notes, tasks, journals
  6. The tool is compatible with Exchange Server, MS Outlook & Windows Operating System versions

How to Reconnect a Disconnected Mailbox in Exchange Server 2016/2013

Step 1: Download > Install > Launch Exchange Recovery Tool

Step 2: Click on Add file > Load offline Exchange Database File

Step 3: Preview EDB file, Mailboxes and data items > Click Export

Step 4: Click on Exchange Database Disconnected Mailbox > Select the required file format > Click on browse button to select target location > Click on the Export button


In this blog, we have discussed both the Manual and Third-Party Techniques. Both methods have their own merits and Demerits. Although, the Manual techniques are available free of cost and are suggested by Microsoft. But on the other hand, they are quite lengthy and requires technical expertise. But the best answer to the question How to reconnect a disconnected mailbox in Exchange Server 2016/2013 is provided by Exchange Recovery Tool in no time and that too without any hassle.

Technical Expert blogger, Love to write about different technologies. Apart from blogging, I like to participate in multiple communities & forums rejoices in assisting troubled users.