Error: "Failed to find a mailbox matching the mailbox mask" (63360)

The internal message delivery health test is failing with this error:

Either the Spoltight on Messaging test mailboxes have not been created after running one of the mailbox creation scripts or the Script was not able to uncheck the "Hide from Exchange address lists"attribute in the test mailbox.

Please follow the steps below to create the Spotlight on Messaging test maiboxes or edit the "Hide from Exchange address lists" attribute.

Creating Exchange 2010 Test Mailboxes:

Spotlight on Messaging ships with a PowerShell script called new-Exchange2010TestMailboxes to simplify creating test mailboxes for Exchange 2010 servers. This script will create one test mailbox per database per server, or one test mailbox per server depending on the mask setting. The list of Exchange servers must be piped into the script. The script must be run inside the Exchange 2010 Management Shell from a computer in the same forest as the Exchange servers. The script has the following syntax:

• new-Exchange2010TestMailboxes.ps1 -OrganizationalUnit <OrganizationalUnitString> -MailboxNameMask <MailboxNameMaskString>
  -AuthorizedUser <AuthorizedUserName> -NoPrompt

For example, to create one test mailbox for every mailbox server in the
Exchange organization, use:

• Get-mailboxserver|new-Exchange2010TestMailboxes.ps1
  -OrganizationalUnit
  "OU=TestAccounts,DC=mscs,DC=qc,DC=kan,DC=ca,DC=qsft"
  -MailboxNameMask TestMailbox.<ServerName>
  -AuthorizedUser myAccount

Or, to create one test mailbox on every mailbox database on the server
AMER-MBX-01:

• Get-mailboxserver amer-mbx-01|new-Exchange2010TestMailboxes.ps1
  -OrganizationalUnit
  "OU=TestAccounts,DC=mscs,DC=qc,DC=kan,DC=ca,DC=qsft"
  -MailboxNameMask TestMailbox.<ServerName>.<DatabaseName>
  -AuthorizedUser myAccount

Creating Exchange 2007 Test Mailboxes:

Spotlight on Messaging ships with a PowerShell cmdlet called new-Exchange2007TestMailboxes to simplify creating test mailboxes for Exchange 2007 servers. This cmdlet will create one test mailbox per store per server. The list of Exchange servers must be piped into the cmdlet. The cmdlet must be run inside the Exchange 2007 Management Shell from a computer in the same forest as the Exchange servers. The cmdlet has the following syntax:

• new-Exchange2007TestMailboxes.ps1 -OrganizationalUnit <OrganizationalUnitString> -MailboxNameMask <MailboxNameMaskString>
  -AuthorizedUser <AuthorizedUserName> -NoPrompt

For example, to create one test mailbox for every mailbox server in the Exchange organization, use:

• Get-mailboxserver|new-Exchange2007TestMailboxes.ps1
  -OrganizationalUnit
  "CN=Users,DC=mscs,DC=qc,DC=kan,DC=ca,DC=qsft"
  -AuthorizedUser Administrator

Or, to create one test mailbox on every mailbox database on the server AMER-MBX-01:

• Get-mailboxserver amer-mbx-01|new-Exchange2007TestMailboxes.ps1
  -OrganizationalUnit
  "OU=TestAccounts,DC=mscs,DC=qc,DC=kan,DC=ca,DC=qsft"
  -AuthorizedUser myAccount
  -MailboxNameMask TestMailbox.<StorageGroupName>.<ServerName>.<StoreName>

Creating Exchange 2000/2003 Test Mailboxes:

Spotlight on Messaging ships with a vbscript called CreateExchange2003TestMailboxes.vbs to simplify creating test mailboxes for Exchange 2000/2003 servers. This script will create one test mailbox per store per server. The script has the following syntax:

• CreateExchange2003TestMailboxes.vbs -OrganizationalUnit <OrganizationalUnitString> -MailboxNameMask <MailboxNameMaskString>
  -AuthorizedUser <AuthorizedUserName> -Server <ServerName> -NoPrompt

To edit the "Hide from Exchange address lists" attribute in Exchange 2010:

1. Open the 2010 exchange management console
2. Expand the recipents configuration and find the newly created mailboxes with a maibox mask like this: SOM_<ServerName>_<StorageGroupName>_<StoreName>
3. Right click on the mailbox and select properties
4. Uncheck the Hide from Exchange address lists and click OK

To edit the "Hide from Exchange address lists" attribute in Exchange 2007:

1. Open the 2007 exchange management console
2. Expand the recipents configuration and find the newly created mailboxes with a maibox mask like this: SOM_<ServerName>_<StorageGroupName>_<StoreName>
3. Right click on the mailbox and select properties
4. Uncheck the Hide from Exchange address lists and click OK

To edit the "Hide from Exchange address lists" attribute in Exchange 2003:

1. Open the Active Drectory users and computers
2. Expand the users container and find the newly created mailboxes with a maibox mask like this: SOM_<ServerName>_<StorageGroupName>_<StoreName>
3. Right click on the new user and select properties
4. Select the Exchange Advanced tab
5. Uncheck the Hide from Exchance address list and click OK

Note:

In some DAG environments you may notice that all the test mailboxes get created with the same server name in the display name for the mailboxs and the tests fail with the above error, If thats the case.

In the Exchange Management Console find your Test accounts. You can filter Display name starts with SOM
For each of the test mailboxes modify the display name to reflect the server with the active copy of the database.
For example the test account mailbox SOM_MailServer01_DB05 and the active copy of DB05 is on MailServer02
In the Exchange Management Console find your Test accounts. You can filter Display name starts with SOM
Right click on the account and select properties
And on the General tab change MailServer01 to MailServer02 for the Display name
Then click the "User Information" tab and make the same change.
Run your test again.