RE: SMTP Services on Exchange 2003

  • From: <ChongJa@xxxxxxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 13 Dec 2005 18:11:56 -0500

Good question. Never used frontend servers as my gateway but is really
no different and people do it all the time. Your setup will prob be like
this. You will have one mx record which will point to the virtual IP.
All incoming mail will be load balanced between both servers. As far as
your smtp connectors, it seems like you have 3 options. You can create 1
smtp connector and specify 1 FE as your bridgehead. Your second option
is to create 1 smtp connector and specify both servers as your bh. By
doing this your smtp connectors are going to load balance. The bad thing
about this is if one of your FE goes down mail will still try to go out
that server! Another setup you can do is create two smtp connectors one
for each FE server and specify different costs. This does not load
balance but gives you fault tolerance if one goes down. 

________________________________

From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, December 13, 2005 5:29 PM
To: [ExchangeList]
Subject: [exchangelist] RE: SMTP Services on Exchange 2003


http://www.MSExchange.org/


Thanks.

 

________________________________

From: Michael B. Smith [mailto:michael@xxxxxxxxxx] 
Sent: Tuesday, December 13, 2005 5:02 PM
To: [ExchangeList]
Subject: [exchangelist] RE: SMTP Services on Exchange 2003

 

http://www.MSExchange.org/

I route all incoming email through my MX servers, but I allow all my
outgoing servers to send email. They don't need a public IP for that
(they just need NAT).

 

It's really just about preference...

 

________________________________

From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, December 13, 2005 4:51 PM
To: [ExchangeList]
Subject: [exchangelist] RE: SMTP Services on Exchange 2003

 

http://www.MSExchange.org/

Mail delivery to the internet...

 

Each connector (one in each Admin Group) will have different routing
values for redundancy if a connector is unreachable.

 

Chris

 

________________________________

From: Michael B. Smith [mailto:michael@xxxxxxxxxx] 
Sent: Tuesday, December 13, 2005 4:21 PM
To: [ExchangeList]
Subject: [exchangelist] RE: SMTP Services on Exchange 2003

 

http://www.MSExchange.org/

Lots of great detail there, but I don't quite understand the question.

 

What do you use the SMTP connectors for?

 

________________________________

From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, December 13, 2005 3:59 PM
To: [ExchangeList]
Subject: [exchangelist] SMTP Services on Exchange 2003

 

http://www.MSExchange.org/

Hello all,

 

   Just a little 'design' question to get your opinions. 

 

   When creating SMTP connectors for your organization, do most of you
place them on your Front End Servers?

 

   Currently, I have one SMTP connector that forwards all mail to smart
hosts.  I am now going with Frontbridge and will be removing the smart
hosts.  As such, I do not want to make my internal Bridgehead accessible
to the internet.  I would rather keep all SMTP traffic going to the
Front End Servers that I have throughout my organization.

Does anyone see any issues with this design?  

 

We have 3 'main' sites.  Each with their own Front End servers currently
providing OWA and RPC services.  Our corporate site has a Network Load
Balanced Frontend config as well, which I plan to make our primary MX
record.  All servers are robust and should be able to easily handle the
flow.

 

Thanks for your thoughts/confirmation on my design.

 

Chris

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