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How do I add a new domain (SMTP) in the Exchange Server as primary without eliminating/disabling the current SMTP?<br />
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My Exchange Server is currently configured to use @organization.state.us (not the actual SMTP). We just started leasing organization.gov (not actual domain). We wanted to start using @organization.gov as our primary SMTP in our Exchange Server. I've already added it but not sure what to do next. I think I have a pretty good grip of the general process of changing it but not the specifics. Detailed information to change the configuration is appreciated. Thanks!
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How do I add a new domain (SMTP) in the Exchange Server as primary without eliminating/disabling the current SMTP?

My Exchange Server is currently configured to use @organization.state.us (not the actual SMTP). We just started leasing organization.gov (not actual domain). We wanted to start using @organization.gov as our primary SMTP in our Exchange Server. I've already added it but not sure what to do next. I think I have a pretty good grip of the general process of changing it but not the specifics. Detailed information to change the configuration is appreciated. Thanks!

How do I add a new domain (SMTP) in the Exchange Server as primary without eliminating/disabling the current SMTP?

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.