An email address is a combination of local part (name), @ symbol and SMTP domain name. When you install Exchange 2010, the default email address format is combination of Active Directory user alias, @ symbol and forest root domain name. If you install Exchange 2010 on a domain called, company.local then the email address will be email@example.com. To change the email address format you need to configure new Email Address Policy. So in this post, I will show steps to configure Email Address Policy in Exchange 2010.
Configure Email Address Policy in Exchange 2010
Email Address Policy sets the format of email address to be configured in your Exchange organization. You can have one or more email address for same mailbox. Before you can configure Email Address Policy for a particular domain name, make sure you have added the same domain name as Accepted Domain Name. To create a Email Address Policy in Exchange 2010, open Exchange Management Console (EMC).
Expand Organization Configuration as show above. Select Hub Transport server role. Select E-mail Address Policies tab in the main windows. In this tab as shown above, you will see the list of Email Address Policies configured. For now, there is only one, Default Policy and the priority is lowest. When you start adding new policies you can assign priority numbers. Higher the number higher the priority. From the Actions pane, click New E-mail Address Policy. New Email Address Policy wizard opens up.
In the Introduction window, type Name for the Email Address Policy. Choose All recipients types, or you can filter based on OU or other conditions on the next window. Click Next.
In the Conditions window, you can specify various condition to apply the Email Address Policy to only specific mailboxes. You can apply Email Address Policy based on company, custom attribute, department, etc. After making changed, click Next.
In the E-mail Addresses window, click Add. Choose the email address local part from various options shown above. Alias is the most common option. Under specify the custom fully qualified domain name, type the new domain name. Here, I typed mustbeweb.com. Click OK.
In the Schedule window, choose Immediately option to apply the policy immediately after it has been configured. Click Next button again.
Review the summary and click New to create the Email Address Policy.
You can see the new email address policy above. In Exchange 2010, when you create a new email address policy, the previous applied to mailboxes will be be replaced. Instead the new policy will be the primary email address and the old policy will be secondary email address. You can see that on properties of a mailbox.
As you can see above, new email firstname.lastname@example.org is primary whereas email@example.com is secondary. In this way, you can configure email address policy in Exchange 2010.
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