When you logged into webmail, you usually see the options choose Horde, Squirrel, Round Cube. But when when you click any of them you get the following Not Found Error.
Content of Error:
The server was not able to find the document (./502.shtml) you requested.
Please check the url and try again. You might also want to report this
error to your web hosting provider.
This might be causing because of some configuration issues with cPanel’s default PHP. You can simply fix it with the following script.
Please don’t worry that the above script wont make changes to PHP compiled with apache. This is for cPanel’s default PHP in the server.