SMTP Does Not Appear in the IIS Manager

SUMMARY

After the installation of the SMTP service on Windows Server 2003, the SMTP tree may not appear in the IIS Manager console.

SYMPTOMS

After the installation of the SMTP service on Windows Server 2003, the SMTP tree may not appear in the IIS Manager console.

For the Windows 2000/IIS 5.0 version of this article, please see:
"IIS 5: SMTP and NNTP Virtual Server Missing in Internet Services Manager"
http://support.microsoft.com/?id=297261

RESOLUTION

Method 1: Click the "Start" button, then "Run…" and type:
regsvr32 %systemroot%\system32\inetsrv\smtpsnap.dll
Alternatively, %systemroot% can be replaced with the drive Windows Server 2003 is installed on

Method 2: Uninstalling and re-installing IIS including the SMTP service has also proven to fix the problem, it is, however, recommended to try method 1 first.