Configuring an SMTP server under Windows Server 2008

Hi All,

Probably very simple but I'm not up on how to ocnfigure SMTP email.  I am moving a web site to another server running Windows Server 2008 and need to re-code the email sending code as this used a web service which is no longer.  I am instead wanting tio use the System.Net.Mail .NEt functionality to send email.  That's the easy bit!

I have aded a Virtual SMTP server in IIS and can access/configure the service using the IIS 6 manager.  My problem is -: how do I actually set this up so that I can send email from .NET.  I understand that I will need to specify a 'from' address in my call to send email and that somehow this must match up with the SMTP server to prevent relay attempts but how?

Is the virtual SMTP service a complete solution for sending email or do I need something else to actually send the email?

If my server is servicing the domain I can configure to point to the IP address of the server.  Would I then set the 'fully qualified domain name' under SMTP Virtual Server>Advanced to be and set the sending email address to '

Any suggestions on setting this up so that I can at least test the email sending would be most welcome
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kevinhsiehConnect With a Mentor Commented:
The only thing you HAVE to configure under the Default SMTP Virtual Servr Properties is in the Access tab, Relay Restrictions, select the radio button "Only the list below" and add the IP addresses or networks of the machines that you want to be able to send the email. Under the Delivery tab, Advanced button, you can change the fully qualified domain name that the service will identify itself as when sending email.

You can send test emails using blat, which is a free command line emailer available at This server shouldn't be used for receiving email, so there isn't anything else you need to do. If this server is part of the Active Directory domain, you should have an MX record setup in your AD DNS so it can find where to send email to for It will use DNS to find the mail servers required for delivery to all domains. I only mention it because if you have split brain internal/external DNS for your domain, you may not have the MX record for mail delivery setup on the internal DNS.
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