Exchange 2007 - old routing group connectors

The following error recently started showing up on our Exchange 2007 server:

Event Type: Warning

Event Source: MSExchange ADAccess

Event Category: Validation

Event ID: 2159

Date: 20.09.2009

Time: 14:15:30

User: N/A

Computer: EXSRV1

Description:

Process edgetransport.exe (Transport) (PID=4900). Configuration object CN=EXSRV1-EXSRV20,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=DN,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=mycompany,DC=intern read from dc1.mycompany.intern failed validation and will be excluded from the result set. Set event logging level for Validation category to Maximum to get additional events about each failure.

EXSRV20 is our old Exchange 2000 server, and looking at the object with adsiedit shows me that I indeed seem to have forgotten to remove the routing group connectors used when upgrading to Exchange 2007 last year. Brainfart! I guess I was lucky that the object is not valid anymore so the error is being logged.

Powershell does the trick:

Get-RoutingGroupConnector

Name SourceRoutingGroup TargetRoutingGroup

---- ------------------ ------------------

EXSRV1-EXSRV20 Exchange Routing Group ... TRONDHEIM

WARNING: Object DNSRV1-DNSRV20 has been corrupted and it is in an inconsistent

state. The following validation errors have occurred:

WARNING: TargetTransportServerVsis is mandatory.

WARNING: TargetTransportServerVsis is mandatory.

EXSRV20-EXSRV1 TRONDHEIM Exchange Routing Group ...

The following commands:

Remove-RoutingGroupConnector EXSRV1-EXSRV20

and

Remove-RoutingGroupConnector EXSRV20-EXSRV1

disposed of the two connectors in a clean manner, and the eventlog is clean again.