How to Configure Exchange Server 2003 to Use a Smart Host IP Address
You can route all outgoing messages for remote domains through a smart
host instead of sending these messages directly to the domain. When you do
so, you can route messages over a connection that may be more direct or
less costly than other routes.
Note The smart host setting for SMTP virtual servers is similar to the
smart host setting on SMTP connectors. You can configure multiple smart
hosts on the connector, because connectors can handle message delivery on
a per-domain basis.
You can identify the smart host by either a fully qualified domain name
(FQDN) or an IP address.
Note If you change the IP address, you must change it on every virtual
server. If you use an IP address, you must enclose it in brackets ([]).
Exchange Server 2003 checks first for a server name and then for an IP
address. The brackets identify the value as an IP address. As a result,
the DNS lookup is bypassed.
You can specify multiple smart hosts based on either the FQDN or the IP
address. If you specify multiple smart hosts, you must separate them by a
semicolon (
. If you use a combination of IP address and FQDN, make sure
that the smart hosts that are specified by IP address appear after those
that are specified by the FQDN. For example, you can use the following
combinations: • IP address of smarthost1; IP address of smarthost2
• FQDN of smarthost1; FQDN of smarthost2
• FQDN of smarthost1; IP address of smarthost2
The following combination does not load balance:• IP address of
smarthost1; FQDN of smarthost2
Microsoft recommends that you configure smart hosts on the connector
because connectors can handle message delivery on a per-domain basis.
To configure Exchange Server 2003 to use a smart host IP address, follow
these steps:1. Click Start, point to Programs, point to Microsoft
Exchange, and then click System Manager.
2. Locate the following folder:
Servers/Your_Server/Protocols/SMTP/Your_SMTP_Virtual_Server
3. Right-click Your_SMTP_Virtual_Server, and then click Properties.
4. Click the Delivery tab, and then click Advanced.
5. In the Smart host box, type the name of the smart host server.
You can type a string to represent a name or type an IP address that is
enclosed in brackets.
You can pick more information here:
http://support.microsoft.com/search/default.aspx?mode=r&query=How+to+Configure+Exchange+Server+2003+to+Use+a+Smart+Host+IP+Address&catalog=LCID%3D1033&1033comm=1&spid=global
