<div>
<div class="content wysiwyg-content">
We are planning to migrate from exchange 2003 to exchange 2010.We have 2 sites in 2 different countries.We want to implement DAG.<br />
Each site need to have different OWA's and need to send email st to internet.
</div>
</div>


We are planning to migrate from exchange 2003 to exchange 2010.We have 2 sites in 2 different countries.We want to implement DAG.
Each site need to have different OWA's and need to send email st to internet.

Needs recomendations for implementing Exchange 2010 DAG

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.