troubleshooting Question

MSExcahneg Transport Error post migration from SBS 2003

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Lonescientist asked on
Email Servers
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I recently completed the migration from SBS 2003 to full 2008 R2 and Exchange 2010.

All is working as expected with no known issues.. However there is one little ditty which is annoying me somewhat and I wondered if anyone here had any thoughts.

In Event viewer I am seeing and MSExchangeTransport Error 5006 which states something similar to...

"Cannot find route to Mailbox Server CN=(Old exchange server),CN=-first administrative group, CN=Administrative Groups, CN=(our domain), CN=Microsoft Exchange, CN=Services, CN=Configuration, DC=(Our domain) for store CN=Mailbox Store (old exchange server), CN=First Storage Group, CN=Information Store, CN=(Old exchange server), CN Servers, CN=first administrative group, CN=Administrative Groups, CN=(our domain), CN=Microsoft Exchange, CN=Services, CN=Configuration, DC=(Our domain) in routing tables with timestamp. Recipients will not be routed to this store."

An additional error in the event log states - MS ExchangeTransport Event 5020
" The topology doesn't contain a route to Exchange 2000 Server or Exchange Server 2003 (old exchange server) in routing group CN=First routing group, CN=Routing groups, CN=first administrative group, cn=administrative groups, CN=(our domain),CN=Microsoft Exchange, CN=Services, CN=Configuration, DC=(our domain) in routing tables with the timestamp (time of log entry)

During the migration phase I uninstalled Exchange 2003 from the SBS2003 server prior to running DCPROMO and taking it off the domain.

As I say we don't have any email issues etc but I would like to clear this error up.

Thanks
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