Internet Direct (Indy) Version 9.0.2 Beta
IsFQDN
Indicates if a Domain name is fully-qualified, but not a top-level domain name.

function IsFQDN(S: String): Boolean;
Parameters
S: String
Domain name to be examined.

Returns
Boolean - True when a fully-qualified Domain name.

Description
IsFQDN is a Boolean function that indicates if the value in S represents a fully-qualified Domain name. IsFQDN returns True when the value in S is a valid Host name, and the value is a Domain name but not a top-level domain name.