XFOR: Could Not Delete an MS Mail Postoffice Connection (177417)

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

When attempting to delete an MS Mail postoffice connection in the Connections tab of the MS Mail Connector property page, you may receive the following error message:

The postoffice <Network>/<Postoffice> could not be deleted because
either the MS Mail Connector server is unavailable or there is
insufficient memory available to perform this operation.

CAUSE

The above error can occur if the registry value <Network>/<Postoffice> is missing under the following registry key:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeMSMI\ 
   Parameters\Admin

(<Network>/<Postoffice> is the network and postoffice name for the MS Mail postoffice to be deleted.)

WORKAROUND

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

Manually add the following registry value under the above registry key and then delete the postoffice connection.

The value is:

   Value Name: <Network>/<Postoffice>
   Data Type: REG_SZ
   String: <the UNC path to the postoffice to be deleted> /Z

For example:

   Value name: Microsoft/Redmond
   Data Type: REG_SZ
   String: \\mailserver\maildata /Z