public bool IsSpam(string countryCode)
{
if (!System.Enum.IsDefined(typeof(CountryWhiteList), Extension.ToUpper()) ||
!System.Enum.IsDefined(typeof(CountryWhiteList), countryCode.ToUpper()))
{
Validity += "Extension or IP country code is not valid.\n";
IsValid = false;
}
if (Identifier.Count(Char.IsLetter) <= Identifier.Count(char.IsDigit))
{
Validity += "Identifier should have more letters than digits.\n";
IsValid = false;
}
if (Domains.Count() > 3)
{
Validity += "Number of Domains should be less than 3.\n";
IsValid = false;
}
return(IsValid);
}