<div>
perfect thanks mattee76. &nbsp;Also I needed to add the local SMTP server IP address as an approved relay.
</div>


perfect thanks mattee76.  Also I needed to add the local SMTP server IP address as an approved relay.

<div>
Hi! &nbsp;Thanks for the help. &nbsp;It did take me a few seconds to understand that you meant expand instead of Exchange the SMTP tab. &nbsp;I bet you have Exchange on the brain.
</div>


Hi!  Thanks for the help.  It did take me a few seconds to understand that you meant expand instead of Exchange the SMTP tab.  I bet you have Exchange on the brain.

<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
I have an Exchange 2003 server on another subnet that I need to route some SMTP traffic to from my local subnet. &nbsp;I have a web server on local subnet with &nbsp;route set to the outside interface so I can't route from 10.1.3.30 to 192.168.200.21, because my default route is set to go to the Internet for traffic. &nbsp;My Exchange server used to be local, but now it's moved. &nbsp;I have an ASP job on the web server that sends SMTP mail to my Exhcange internally, but this no longer will work due to the gateway change.<br />
<br />
I've decided to build a local IIS SMTP server on my local subnet, but not sure what my next steps should be. &nbsp;SMTP is installed on a server that is on the 10.1.x.x and it can route just fine to 192.168.200.21. &nbsp;Any help in getting IIS SMTP to 'forward' or relay the mail to Exchange would be appreciated.
</div>
</div>


Hi Experts,

I have an Exchange 2003 server on another subnet that I need to route some SMTP traffic to from my local subnet.  I have a web server on local subnet with  route set to the outside interface so I can't route from 10.1.3.30 to 192.168.200.21, because my default route is set to go to the Internet for traffic.  My Exchange server used to be local, but now it's moved.  I have an ASP job on the web server that sends SMTP mail to my Exhcange internally, but this no longer will work due to the gateway change.

I've decided to build a local IIS SMTP server on my local subnet, but not sure what my next steps should be.  SMTP is installed on a server that is on the 10.1.x.x and it can route just fine to 192.168.200.21.  Any help in getting IIS SMTP to 'forward' or relay the mail to Exchange would be appreciated.

Internal SMTP server forwarding to my Exchange Server 2003

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.