public void RejectsInvalidEmailAddresses(string invalidEmailAddress)
        {
            var validator = new StandardEmailAddressValidator();

            Assert.IsFalse(validator.IsValidEmailAddress(invalidEmailAddress));
        }
        public void AlowsValidEmailAddresses(string validEmailAddress)
        {
            var validator = new StandardEmailAddressValidator();

            Assert.IsTrue(validator.IsValidEmailAddress(validEmailAddress));
        }