Our company which is running Exchange 2010 DAG want to have different 'display names' for internal and external mail flow Example. First Name, Last Name: Some Name Now the scenario 1. when sending mail internally the display address should be: some, name (XXXCompany address) [mailto:some.name@XXX.com] Currently the internal display name is "some,name (XXXCompany address)" and we want to include [mailto:some.name@XXX.com] in display name 2. when sending mails externally the display address should be: some, name [mailto:some.name@XXX.com] Currently the display name with address is visible to external domain users when sending mail from our XXX.com to some other domain. We want to remove this and display name should show only "some, name [mailto:some.name@XXX.com]" when sending external mails. Please guide me how we accomplish through script or Hub Tranport rules at once.

As I know, the email address of the authenticated internal users will be resolved to display name, which is the expected behavior and also hardcoded since exchange 2007 You can check if there’s any programming method to accomplish this task by using the “Outlook for Developers” forum Externally, destination domains have to stop resolving the e-mail addresses from anonymous senders For example, in exchange 2000 and 2003: If you set ResolveP2 registry to 48 (Decimal) based on KB 288635, and disable the “Resolve anonymous e-mail” setting on SMTP Virtual Server (Procedure), then the Sender’s address will show as SMTP format as below: “First Name Last Name [xxxx@domain.com]”Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.