public override PropertyConstraintViolationError Validate(object value, PropertyDefinition propertyDefinition, IPropertyBag propertyBag)
{
if (!SmtpAddress.IsValidDomain((string)value))
{
return(new PropertyConstraintViolationError(DataStrings.ConstraintViolationNotValidDomain((string)value), propertyDefinition, value, this));
}
return(null);
}