Hi there I have a big issue regarding Migration from Exchange 2003 to 2010.
Normaly you setup the routing Groups between both exchange Systems, create a
SMTP Connector on exchange 2010, delete the virtual smtp Server on exchange 2003and then all replication is going from exchange 2003 to exchange 2010.
My Problem is that the Routing Group Connectors did not seem to work. I can send and
reciefe Emails on the Exchange 2010 System, but the internal mail flow did not seem to work this is also the reason why I can not send and reciefe Emails from the Exchange 2003 System.
For now i reacreat the virtual SMTP Host again on the 2003 Server, but until this issue issent solved i can not finish the Migration.