Troubleshooting mailbox restore errors

For the following mailbox restore errors, ensure that the RBAC roles and management role scope are set on the Exchange objects for the Exchange user.

1. If a mailbox fails to open and the error message indicates a missing RBAC permission, ensure that the user who is logged on to the mailbox has the required RBAC roles, and the management scope for those roles includes the database that contains the mailbox. Then, open the mailbox again.
2. If a mailbox restore operation fails and the error message indicates a missing RBAC permission, ensure that the user who is logged on to the mailbox has the required RBAC roles, and the management scope for those roles includes the source and target databases. Then, restart the restore operation.

To resolve mailbox restore errors in an Exchange Server 2013 environment, ensure that the Exchange Server mailbox permissions, authentication methods, registry key settings, and the Client Access Server (CAS) role are configured correctly.

1. Grant full access permission to the user who is logged on to the target mailbox.
   When the administrator mailbox is used, Exchange Server 2013 usually blocks full access permission for the administrator by default.
2. To restore an Exchange 2013 public folder mailbox, ensure that the Exchange user has the Public Folders management role.
3. Log on to an Exchange Server 2013 mailbox as the Exchange Server administrator and ensure that sufficient storage space is available in the administrator mailbox.
4. Ensure that you can access the mailbox that you logged on to and the target mailbox in either Microsoft Outlook or Outlook Web Access.
5. Specify an Exchange Server 2013 CAS by setting the CLIENTACCESSServer=servername parameter.
   If you are using a load balancer, set the CLIENTACCESSServer parameter to point to the CAS instead of the load balancer.
6. Open the administrator mailbox and the target mailbox. On the Actions pane in the Mailbox Restore Browser interface, click Open Exchange Mailbox.
7. Verify that the MAPI registry key, RpcHttpProxyMap_TSM, is correct to enable IBM Storage Protect Snapshot to connect to the Exchange Server. Use one of the following methods:
   • Check the registry key that is in the HKEY_CURRENT_USER\Software\Microsoft\Windows NT\Current Version\Windows Messaging Subsystem directory. Change the registry key values to reflect the correct domain, endpoint, and Remote Procedure Call (RPC) authentication methods for your environment. For example, you might specify HTTPS as the authentication method if RPC-over-HTTPS connections ares enabled for the Exchange Server that is hosting the MAPI profile. Otherwise, you might use HTTP authentication for RPC-over-HTTP connections.
   • Use the MAPI Settings property page in Microsoft Management Console (MMC) to ensure that the MAPI registry key is correct. Change the registry key values to reflect the correct domain, endpoint, and Remote Procedure Call (RPC) authentication methods for your environment.
   By default, the following registry key format is used.

   Domain=Proxy Server,RpcHttpAuthenticationMethod,
   RpcAuthenticationMethod,IgnoreSslCert

   Where the

   • Domain value is the domain suffix of the personalized server ID, for example, companyname.local. Specify any domain or a substring of a domain, or the asterisk (*) and question mark (?) wildcard characters, for example, *.companyname.local.
   • Proxy Server value is the RPC proxy server that has the Client Access Server (CAS) role. Specify the fully qualified domain name (FQDN) of the RPC proxy server. Precede the FQDN by http:// for an HTTP connection, or https:// for an HTTPS connection. For example, https://exchange.companyname.com
   • RpcHttpAuthenticationMethod value is the method that is used to authenticate RPC-over-HTTP connections. Specify NTLM, Basic, Negotiate, or WinNT.
   • RpcAuthenticationMethod value is the method that is used to authenticate RPC-over-TCP connections. Specify NTLM, Negotiate, WinNT, Anonymous, or None.
   • IgnoreSslCert value indicates whether the Exchange Server validates SSL certificates. For the Exchange Server to ignore invalid certificates, specify False.

   The default registry key looks like the following example:

   contoso.com=https://mail.contoso.com,ntlm,ntlm,false

When you restore multiple mailboxes on a server that is running Exchange Server 2013, the mailbox restore operation might partially fail and report a MAPI error.

An error can occur when many mailboxes are queried on a remote system, which causes an out-of-memory exception.

Error: Processing data for a remote command failed with the following error message:

The WSMan provider host process did not return a proper response. A provider

in the host process may have behaved improperly. For more information, see the

about_Remote_Troubleshooting Help topic.OperationStopped: (<Machine_Name>:String)

[],PSRemotingTransportExceptionJobFailure

Set-Item WSMan:\localhost\Plugin\Microsoft.PowerShell\Quotas\MaxMemoryPerShellMB 
        4096

Restart-Service winrm

If you restore an email with an attachment that is larger than 3 MB to an SMTP server, a Microsoft fix is required.

QFD: System.Net.Mail - SmtpClient class throws exceptions if file attachment

is over 3 MB

IBM Storage Protect Snapshot does not record the time when mailboxes are deleted.