public void Should_not_remove_tags()
        {
            var settings = new NormalizerSettings {
                RemoveTags = false
            };
            var expected = new MailAddress("*****@*****.**");

            Normalizer.Normalize(expected, settings).ShouldBe(new MailAddress("*****@*****.**"));
        }
        public void Should_not_replace_host()
        {
            var settings = new NormalizerSettings {
                NormalizeHost = false
            };
            var expected = new MailAddress("*****@*****.**");

            Normalizer.Normalize(expected, settings).ShouldBe(expected);
        }
        public void Should_not_lowercase()
        {
            var settings = new NormalizerSettings {
                LowerCase = false
            };
            var expected = new MailAddress("*****@*****.**");

            Normalizer.Normalize(expected, settings).ShouldBe(expected);
        }