Exchange 2010 Mail Contacts get assigned internal SMTP addresses by the recipient policy

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http://serverfault.com – This environment has been upgraded from Exchange 2007 to a new Exchange 2010 server. There are several thousand email contacts that reside under the Federation_Contacts OU. Under the Email Addresses tab for each Mail Contact, their correct SMTP address ([email protected] for example) is assigned as Primary. But somehow each one got assigned internal email addresses at our company also ([email protected] and [email protected]) Now the problem is emails to these contacts bounce back with #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found We have to go and delete the internal SMTP ad (HowTos)