Export Pst File From Exchange Admin Center

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Mailboxexport requests use the Microsoft Exchange Mailbox Replication service (MRS) to export the contents of mailboxes to .pst files. For more information, see Mailbox imports and exports in Exchange Server.

The procedures in this topic require the Mailbox Import Export role, which isn't assigned to any role groups by default. To assign the role to a role group that you belong to, see Add a role to a role group. Note that changes in permission require you to log off and log on for the changes to take effect.

You need to export mailboxes to .pst files on a UNC network share (\ \ \ or \ \c$). The Exchange Trusted Subsystem security group requires the Read/Write permission to the network share. If the share doesn't have this permission, you'll get errors when you try to export mailboxes to .pst files.

You can create mailbox export requests in the Exchange admin center (EAC) or in the Exchange Management Shell. All other procedures can only be done in the Exchange Management Shell. For more information about accessing and using the EAC, see Exchange admin center in Exchange Server. To learn how to open the Exchange Management Shell in your on-premises Exchange organization, see Open the Exchange Management Shell.

Mailbox export request name: The default value MailboxExport is used, because we aren't using the Name parameter. The unique identity of the mailbox export request is \MailboxExportX (X is either not present, or has the value 0 to 9).

Mailbox export request name: The custom name Kathleen Reiter Export is specified by the Name parameter. Specifying a custom name allows more than 10 mailbox export requests for the mailbox. The unique identity value of the mailbox export request is \ (for example, kreiter\Kathleen Reiter Export).

If you created the mailbox export request in the EAC, and selected the option to send notification email messages, check the notification messages. The sender is Microsoft Exchange. The first message has the subject Your Export PST request has been received. If the export request completed successfully, you'll receive another message with the subject Export PST has finished.

By default, the Get-MailboxExportRequest cmdlet returns the name, source mailbox, and status of mailbox export requests. If you pipeline the command to the Format-List cmdlet, you'll only get a limited number of additional useful details:

By default, the Get-MailboxExportRequestStatistics cmdlet returns the name, status, alias of the source mailbox, and the completion percentage of mailbox export requests. If you pipeline the command to the Format-List cmdlet, you'll see detailed information about the mailbox export request.

You can modify mailbox export requests that haven't completed. You can't modify the fundamental settings of an existing request (for example, the source mailbox, target .pst file, the source content in the mailbox, or the destination in the target .pst file).

To verify that you've successfully resumed a mailbox export request, replace with the name, email address, or alias of the source mailbox, run this command in the Exchange Management Shell, and verify that the Status property doesn't have the value Suspended:

If you remove a partially completed mailbox export request, the request is removed from the MRS job queue. Any content that's already been exported from the source mailbox isn't removed from the target .pst file.

By default, completed mailbox export request are removed after 30 days (you can override this value with the CompletedRequestAgeLimit parameter), and failed requests aren't automatically removed. But, if you use the RequestExpiryInterval parameter when you create or modify a mailbox export request, these results are available:

To verify that you've successfully removed a mailbox export request, replace with the name, email address, or alias of the source mailbox, run this command in the Exchange Management Shell, and verify that the mailbox export request isn't listed:

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In our example below, we have two Exchange 2019 servers behind a load balancer in a single site; EX19-01 and EX19-02. Our third-party certificate request was generated and completed on EX19-01. We have also assigned services to that certificate. However, that certificate does not yet exist on EX19-02. Only the default out-of-the-box certificates exist on EX19-02.

When user Amy Pond connects, she is load balanced to EX19-01, which has a third-party certificate. The certificate matches the namespace. Her connection is established without error. On the other hand, when Rory Williams connects, he is load balanced to EX19-02. EX19-02 returns its self-signed certificate. This certificate does not match the namespace. Rory receives a security error.

In this article, we explore transferring a third-party SSL certificate from one Exchange server to another using PowerShell. This process differs from the older cumulative updates (and Exchange 2013), where it was still possible to complete a third-party certificate request through the Exchange Admin Center (GUI).

As mentioned earlier, newer versions of Exchange 2016 and Exchange 2019 require that third-party certificate actions, such as exporting or importing, be completed through PowerShell. These actions can no longer be processed through the Exchange Admin Center.

In this command, two things are important. First, you must specify a UNC path to where you want to save the certificate request file. In our example, we saved this to our desktop as a text file named mail_exchangeservergeek_com.pfx. The second is what we are exporting into that file. In this case, it is the contents of the variable $cert. As soon as you run this command, the file will be created in the location specified.

Take note that the Services column lists all periods. This indicates no services are currently assigned to the certificate. Check this article for more information on how to assign services to the certificate. The certificate is not live, or in production, until you assign services to it.

Once we have assigned services, we can check the validity of the certificate by running the following command. This certificate will also show up in the Exchange Admin Center under Servers > Certificates.

This error occurs if you missed the PrivateKeyExportable parameter (or did not set it to $true) when generating the original certificate, or if you tried to export the certificate from a server that did not use the parameter during its own import process. To fix this issue, you may need to rekey the certificate (invalidating the certificate across all servers) or identify a server where the private key is exportable.

Gareth is a former Microsoft MVP (2016-2024) specializing in Exchange and Office 365. Gareth previously contributed to the Office 365 for IT Pros book, which is updated monthly with new content. Find Gareth on LinkedIn, X, or, Facebook.

An Office 365 administrator has many responsibilities while working with Exchange Online. They deal with how to delete user mailboxes in Exchange Online and how to manage all the relevant data. For example, you might need to transfer mailboxes from Exchange to the PST file format in order to move emails and other items from one mailbox to another. To perform import or export of mailboxes, a user account needs the Mailbox Import Export role assigned to it in Exchange Online. Here, in this article, we will discuss at length all about the Mailbox Import Export role and how to assign it without any complexities.

Currently, this utility is available for Exchange 2010 SP1 and all its later versions. This is disabled for all users by default, including the administrator but can be enabled and assigned quickly with the right process. However, this role can easily be assigned to a group, multiple users, or even a single user.

The transfer of mailbox items to PST files or vice versa is done frequently by some administrators. The Mailbox Import Export role eases this process by providing the following advantages:

If you want to remove this role from a user or group using the Admin Center, you can follow the same procedure used while applying it and just remove the user from the group and click on Save to apply the changes.

As a tenant admin, you will be asked for reports and information about the users in your tenant. One of the basic requests is around the number of users. A basic user export provides all this information and much more. In this recipe, we'll obtain that from the Microsoft 365 Admin Center.

Below is the result you should expect from this script. The mailbox permission report stores most required attributes like Display Name, User Principal Name, Mailbox Type, Access Type, User With Access, and Admin Roles. You can include more attributes by easily modifying script.

To execute the script with MFA or non-MFA account, use the below format. It will prompt to enter credential twice, one is for Exchange Online PowerShell and another is for MS Graph (to retrieve admin role details).

To automate the script execution, you can use certificates for authentication. Depending on your requirements, you can choose to use a certificate authority (CA) or create a self-signed certificate, which is more cost-effective.

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