Re: SBS2003 - Exchange config

From: Frank McCallister (anonymous)
Date: 07/15/04 

Date: Wed, 14 Jul 2004 22:21:56 -0500

Hi Matthew

No value except it may be required IF your ISP is blocking Port 25 or if
your are using POP3 because you don't have a FQDN and some mail is being
bounced because of no reverse DNS lookup.

Frank McCallister
COMPUMAC
"Matthew Greig" <mgreig@groundlevelconsulting.com> wrote in message
news:2c7e601c46a0c$d3506670$a601280a@phx.gbl...
> So then my question is:
>
> Why not just use the "Use DNS to route e-mail" option and
> forget about forwarding all of your email to your ISP?
> What's the value add to forwarding email to your ISP? I
> see the benefit of using a POP3 connector to receive
> email, as it's an extra line of defense in case there's
> an outage with your Exchange server in which case the
> inbound email will simply sit on the ISP's mail server
> until your Exchange server is back up and running....
> However, I don't see the benefit the other direction.
>
> TIA
>
> Matthew
>>-----Original Message-----
>>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.
>>
>>
>>
>>
>>
>>.
>>