Microsoft Windows Server 2008 and IIS 7 - SMTP Server - Setup Guide

Important Points

  • The SMTP server component of IIS 7 on Windows Server 2008 is only really usable by scripts or web applications on your website, if you require an SMTP server for sending emails from desktop machines or for mailing list distribution you will need to look at Microsoft Exchange or an alternative.
  • First you need to make sure the email address(es) you will be sending from have been authorised for your account in our Control Panel .
  • These instructions assume you have a working installation of Windows Server 2008 with IIS 7 and you have already installed the SMTP server component.
  • Take a note of any settings you change.
  • These instructions are only for the SMTP server component in IIS 7 on a Windows 2008 Server - for other email programs please see How To Setup AuthSMTP or contact us.


  • Open the IIS manager and go to the level you wish to manage
  • In Features View, double click on SMTP Email
  • On the SMTP Email page, enter the email address you wish to send from in the Email Address field
  • From the two delivery method options choose Deliver e-mail to SMTP server
  • Type '' into the SMTP Server field
  • Type '2525' into the Port field. (We recommend using port 2525 but you can also use 23, 25 or 26)
  • Under Authentication Settings click Specify Credentials and then click Set
  • In the credentials window enter your AuthSMTP username and password and click OK
  • Click Apply in the Actions pane
  • Done - You should now be able to send emails from your application through AuthSMTP


  • If you cannot send email please check the error logs via the Control Panel
  • If nothing is logged in the control panel check all the details that you have entered and try one of the alternative ports
  • For further assistance with Windows 2008 and IIS 7 please consult the Microsoft documentation and support channels