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Managing Messages > Configuring delivery routes > Domain-based routes
Domain-based routes
Email Security Manager Help | Email Security Solutions | Version 7.8.x
Delivery routes based on domain groups are scanned after defined user directory-based routes for a match with an email message recipient. If a match is made with a user directory-based route, domain-based routes are not scanned for matches.
* 
Important 
The Protected Domain group defined in the Settings > Users > Domain Groups page should not be used to configure Email Security Gateway delivery routes if you need to define domain-based delivery routes via multiple SMTP servers.
Create domain groups that contain subsets of the Protected Domain group for mail routing purposes.
Adding a domain-based route
Use the following steps to add a domain-based delivery route on the Settings > Inbound/Outbound > Mail Routing page:
1.
Click Add to open the Add Domain-based Route page.
2.
Enter a name for your new route in the Name field.
3.
Select an order number from the Route order drop-down list to determine the route's scanning order.
4.
Select a destination domain from the pre-defined domains in the Domain group drop-down list. Default is Protected Domain. Information about the domain group appears in the Domain details box.
If you want to edit your selected domain group, click Edit to open the Edit Domain Group page. See Editing a domain group for details.
5.
Select the delivery method:
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Based on the recipient's domain (using the Domain Name System [DNS])
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Based on SMTP server IP address designation (using smart host). If you select this option, an SMTP Server List opens.
a.
Click Add to open the Add SMTP Server dialog box.
b.
Enter the SMTP server IP address or host name and port.
c.
Mark the Enable MX lookup check box to enable the MX lookup function.
* 
Important 
If you entered an IP address in the previous step, the MX lookup option is not available.
If you entered a host name in the previous step, this option is available.
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Mark the Enable MX lookup check box for message delivery based on the host name MX record.
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If you do not mark this check box, message delivery is based on the host name A record.
d.
Enter a preference number for this server (from 1 - 65535; default value is 5).
If a single route has multiple defined server addresses, Email Security attempts to deliver mail in order of server preference. When multiple routes have the same preference, round robin delivery is used.
You may enter no more than 16 addresses in the SMTP Server List.
6.
Select any desired security delivery options.
a.
Select Use Transport Layer Security (TLS) if you want email traffic to use opportunistic TLS protocol.
b.
Select Require authentication when you want users to supply credentials. Enter the appropriate user name and password in the Authentication Information box. You must use the SMTP server IP address delivery method when you want users to authenticate.
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Go to the table of contents Go to the previous page Go to the next page Go to the index View or print as PDF
Managing Messages > Configuring delivery routes > Domain-based routes