SYMPTOMS

When navigating to the web mail client the following error is returned in the browser:

HTTP Error 403.14 - Forbidden

The Web server is configured to not list the contents of this directory.


Detailed Error Information


Module
DirectoryListingModule

Notification
ExecuteRequestHandler

Handler
StaticFile

Error Code
0x00000000

CAUSE

The ASP.NET and CGI role services are not installed.

RESOLUTION

Windows server 2012

• Open Windows "Server Manager"
• Under "Dashboard" click on "Add roles and features"
• click "Server Roles" and then expand: Web Server (IIS) > Web Server (Installed) > Application Development (Installed)
• Select "ASP.NET 3.5",  "ASP.NET 4.5" and "CGI"
• Click "Next" to install
• Once completed restart IIS and test web mail.

Windows server 2008

• Open Windows "Server Manager"
• Click on the "Roles" Node.
• In the "Roles" window scroll down to "Role services".
• Click on "Add roles Services"
• Expand Web Server (Installed) > Application Development (Installed)
• Select "ASP.NET" and "CGI".
• Click "Next" to Install.
• Once completed restart IIS and test web mail.