Re: with multiple external ips, send mail from diff domains specifying diff ip for each with 2003?
- From: "Matthew Byrd [MSFT]" <matbyrd@xxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 19 Jul 2006 09:35:54 -0400
Hi Les,
So here is what you outbound mailflow would look like in my recommendation.
Exchange --> IIS --> Internet
You simply have multiple IIS servers all with different IP addresses available for Exchange to "relay" the email to. These servers are not servicing the email in any way ... they just pick it up from Exchange and send it on to the internet.
If they get an NDR from the receiving server ... they bounce the mail back to the Exchange severs. They are simply acting as SMTP Smart Hosts. The only reason I recommend using them is your requirement of being able to know what IP is routing email bound for what domain.
Lets walk thru the setup verbally.
You configure 3 IIS servers ... IISA, IISB, and IISC. You are sending email to three different email domains. Domain1 Domain2 and Domain3. All of the IIS servers are configured with different Public Internet IP addresses. Each is configured to deliver email using DNS.
Now on the Exchange server you create an SMTP connector. You configure this connector with IISA as a smart host for the connector. You then configure it so that the only domain it can deliver email for is "Domain1". Now this means that all email going to domain1 will be routed to server IISA. IISA will then use DNS to deliver the email to the target domain. Repeat these steps for IISB and Domain2 then IISC and Doman3.
You can configure an SMTP connector for each domain that you want to send email to and have to connector forward to what ever IIS relay server you want. Now if the IP for IISB gets added to a black list ... you can simply move the SMTP connectors that are pointing to IISB to point to IISA and IISC until you get the IP for B pulled from the black list.
Hope this Helps,
--
Matthew Byrd [MSFT]
Microsoft Exchange Support Engineer
This posting is provided "AS IS" with no warranties, and confers no rights.
"Les Caudle" <very@xxxxxxxxxxxxxxx> wrote in message news:t6bqb2t8aj6as16geu2fbl1hq6k29tq671@xxxxxxxxxx
Matthew - what exactly is a relay server?
We wanted to use exchange so that we could programmatically monitor the emails
that bounced back due to spam filters or bad email addresses.
I suppose we could use the ISPs SMTP servers to actually send the emails as the
return address would bounce back to Exchange.
Thanks, Les Caudle
On Tue, 18 Jul 2006 09:34:12 -0400, "Matthew Byrd [MSFT]"
<matbyrd@xxxxxxxxxxxxxxxxxxxx> wrote:
Hi Les,
If the servers are just going to be relay servers then I strongly recommend
that you NOT use Exchange. Exchange is not ideally suited as a pure email
relay server. Though it works well in that capacity many if not most of the
Exchange features are not needed in that role.
I would recommend instead that you simply use plain old windows 2003 IIS and
windows SMTP. The SMTP built into IIS works very well as a relay host for
Exchange. The only down side to it is that you will need to find software
(I think there is some freeware though not sure) that will let you monitor
the IIS smtp queues.
Hope this Helps,
.
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