RE: SBS2003 - Exchange config

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From: Ricky Morris [MSFT] (rickym_at_online.microsoft.com)
Date: 07/14/04 

Date: Wed, 14 Jul 2004 18:54:26 GMT

Boris,

An SMTP smart host is simply an SMTP server, usually maintained by an ISP, which can forward your outbound mail, once it receives it. An
SMTP smart host does a lot of other things, but the only one we're interested in is its ability to relay outbound mail for your domain. The
ISP's e-mail servers are commonly referred to as SMTP smart hosts and are usually running the UNIX based SendMail application.

You must arrange to have an SMTP smart host relay your outbound mail BEFORE sending mail to it, otherwise the operator of the SMTP
smart host will think you're a spammer and block receiving any mail from your server.

Contact your ISP and arrange for them to relay your outbound mail through one or more of the SMTP smart hosts. While you're on the
phone with them, obtain the IP address(es) of the SMTP smart host(s) which will be relaying your outbound mail. You will use the IP
address(es) to configure the SmallBusines SMTP connector using either the Configure Email and Internet Connection Wizard (CEICW) or
manually in the Exchange System Manager.

When you run the CEICW on the SBS 2003 server, you receive the option to configure Exchange to either "Use DNS to route e-mail" or
"Forward all e-mail to e-mail servers at your ISP." Select the latter choice, then enter the IP Address(es) of the ISP's e-mail server(s)
which the ISP provided to you for relaying in the window provided. Surround each IP address in square brackets. Separate multiple
entries using semi-colons. For example, enter "[w.x.y.z];[r.s.t.u] if you enter the IP addresses for two e-mail servers. The CEICW takes
the information provided on this property *** and configures the Exchange 2003 SmallBusiness SMTP Connector correctly.

Using the CEICW is the recommended way to configure your Exchange 2003 server to forward mail to an SMTP smart host.

If you want to configure the Exchange server's configuration manually and not use the CEICW method above, you can do the following:

Open the ESM, go to connectors, right click on the SmallBusiness SMTP connector, select properties. On the General Tab, you will have the
options to either "Use DNS to route to each address space on this connector" or "Deliver all mail through this connector to the following
smart hosts". If the latter choice is selected, you will be able to enter the name or IP address of the smart hosts, separated by a
semicolon. If you use the smarthost's IP address, enter it thusly: [W.X.Y.Z] where W, X, Y and Z are the 4 octets of the IP address. The
square brackets surrounding the IP prevents the server from having to perform an NSLookup for the smart host each time a connection is
made to it, which will speed up the server's performance. Apply the change to the SmallBusiness SMTP Connector, click OK.

Once you have configured the SmallBusiness SMTP Connector to deliver mail to the ISP's SMTP smart host, restart the Default SMTP Virtual
Server in the ESM and test outbound mail flow from a client, through your Exchange 2003 Server to an external recipient relayed by the
ISP's SMTP smart host.

Best Regards,

Ricky Morris, MCSE

Microsoft Small Business Server Support

This posting is provided "AS IS" with no warranties, and confers no rights.

Newsgroups:
SBS v4.x : microsoft.public.backoffice.smallbiz
SBS 2000: microsoft.public.backoffice.smallbiz2000
SBS 2003: microsoft.public.windows.server.sbs

--------------------
From: "Boris Kagan" <bkagan98 at yahoo dot com>
Subject: SBS2003 - Exchange config
Date: Wed, 14 Jul 2004 09:40:40 -0400
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Hello,

I have a problem with configuring an Exchange server to send emails through
an external ISP. I used POP3 connector for receiving emails and it is
working fine.

Any suggestions? Thanks.

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