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Microsoft Windows Server 2003 does not install Collaboration Data Objects (CDO) for NTS (CDONTS). Therefore, applications using CDONTS do not work on Windows Server 2003-based computers. Windows Server 2003 provides improved alternatives to CDONTS.

For CDONTS to work in a Windows Server 2003-based computers, please do the following:

1. Download the attached CDONTS.ZIP file. Once downloaded, unzip CDONTS.DLL and put it in %systemroot%\system32 folder (by default C:\Windows\system32). You can also get CDONTS.DLL from the installation CD of your Windows 2000.

2. Register the CDONTS.DLL component in the server using the following command:

regsvr32 "%systemroot%\system32\cdonts.dll"

For example:

C:\WINDOWS\system32>regsvr32.exe cdonts.dll

3. Once the CDONTS.DLL component is registered, you should check if your SMTP service is running.

Go to Administrative tools, IIS and Expand your local machine. If the SMTP service is listed, it means it is already installed, if not you should install this service.

To install SMTP, do the following:

Go to Control Panel, Add/Remove Programs, Add/Remove Windows Components, Application Server, IIS, Select SMTP service, Click OK.

4. Change the port number for the SMTP service. The default port is 25. Use 25 only when no other SMTP service is running. If there is already another SMTP service running on the server, change the SMTP port of IIS, for example to port 8025.

You can make this through IIS management console: Control Panel, IIS, expand `local computer`, SMTP, Properties, General, click Advanced button, Edit.

5. Set up SMTP service. Most important is setting up a fully qualified domain name for the SMTP service: Control Panel, IIS, expand `local computer`, SMTP, Properties, Delivery, click Advanced button and set up Security service for SMTP.

It is required to give permissions to IIS_WPG standard IIS Worker Process Group. Control Panel, IIS , expand `local computer`, SMTP, Properties, Security, click Add button, then click Object types button..., select Groups element, click OK, enter IIS_WPG as object name to add and click OK.

Additional configuration: Select Authentication and check Anonymous Access and Integrated Windows Authentication. Click OK and then click CONNECTION. Set up the RELAY settings. Click DELIVERY tab and then click ADVANCED. Set up the MAX Count hop to the required value, even though we suggest setting it to at least 20.

Now the SMTP service of IIS is already configured.

Additional information