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You need to create MX records for both domains internally &amp;&nbsp;Externally.<br />
<br />
than Needs to create recipient policy .
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You need to create MX records for both domains internally & Externally.

than Needs to create recipient policy .

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I have got recipient policy which added both domains.<br />
How do I create MX internally? Why would Exchange 2003 need internal MX record for my domains when sending emails out?
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I have got recipient policy which added both domains.
How do I create MX internally? Why would Exchange 2003 need internal MX record for my domains when sending emails out?

<div>
Thank you Simon. That's what I thought but needed to double check.<br />
We will be moving emails to Office 365 later on this year so this is my last Exchange 2003.<br />
<br />
Have a good one<br />
Tom
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Thank you Simon. That's what I thought but needed to double check.
We will be moving emails to Office 365 later on this year so this is my last Exchange 2003.

Have a good one
Tom

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<div class="content wysiwyg-content">
Hi<br />
<br />
We have two domains on our Exchange 2003 domainlong.co.uk and domainshort.co.uk. We have Smart Host 1 but it only accepts one domain domainlong.co.uk so they created another Smart Host 2 for domain domainshort.co.uk. <br />
The question is how to configure Exchange 2003 to use Smart Host 1 for domain domainlong.co.uk &nbsp;and to use Smart Host 2 for domain domainshort.co.uk. <br />
<br />
Thank you for your help.<br />
Tom
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Hi

We have two domains on our Exchange 2003 domainlong.co.uk and domainshort.co.uk. We have Smart Host 1 but it only accepts one domain domainlong.co.uk so they created another Smart Host 2 for domain domainshort.co.uk. 
The question is how to configure Exchange 2003 to use Smart Host 1 for domain domainlong.co.uk  and to use Smart Host 2 for domain domainshort.co.uk. 

Thank you for your help.
Tom

Set up 2 smart hosts for different domains hosted on Exchange 2003

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.

Exchange

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

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).