diff --git a/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy b/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
index 8437a3d120..92bf982aa9 100644
--- a/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
+++ b/spring-cloud-contract-spec/src/main/groovy/org/springframework/cloud/contract/spec/internal/RegexPatterns.groovy
@@ -38,7 +38,7 @@ class RegexPatterns {
 	protected static final Pattern NUMBER = Pattern.compile('-?\\d*(\\.\\d+)?')
 	protected static final Pattern IP_ADDRESS = Pattern.compile('([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])')
 	protected static final Pattern HOSTNAME_PATTERN = Pattern.compile('((http[s]?|ftp):/)/?([^:/\\s]+)(:[0-9]{1,5})?')
-	protected static final Pattern EMAIL = Pattern.compile('[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}')
+	protected static final Pattern EMAIL = Pattern.compile('[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}')
 	protected static final Pattern URL = UrlHelper.URL
 	protected static final Pattern UUID = Pattern.compile('[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}')
 	protected static final Pattern ANY_DATE = Pattern.compile('(\\d\\d\\d\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])')
diff --git a/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy b/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
index 5078448b9a..3071f631b3 100644
--- a/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
+++ b/spring-cloud-contract-spec/src/test/groovy/org/springframework/cloud/contract/spec/internal/RegexPatternsSpec.groovy
@@ -53,6 +53,7 @@ class RegexPatternsSpec extends Specification {
 			textToMatch   || shouldMatch
 			'asd@asd.com' || true
 			'a.b.'        || false
+			'asdf@asdf.online' || true
 	}
 
 	// @see http://formvalidation.io/validators/uri/
diff --git a/spring-cloud-contract-tools/spring-cloud-contract-converters/src/test/groovy/org/springframework/cloud/contract/verifier/wiremock/DslToWireMockClientConverterSpec.groovy b/spring-cloud-contract-tools/spring-cloud-contract-converters/src/test/groovy/org/springframework/cloud/contract/verifier/wiremock/DslToWireMockClientConverterSpec.groovy
index 092f6a5bc3..f19d98c462 100755
--- a/spring-cloud-contract-tools/spring-cloud-contract-converters/src/test/groovy/org/springframework/cloud/contract/verifier/wiremock/DslToWireMockClientConverterSpec.groovy
+++ b/spring-cloud-contract-tools/spring-cloud-contract-converters/src/test/groovy/org/springframework/cloud/contract/verifier/wiremock/DslToWireMockClientConverterSpec.groovy
@@ -449,7 +449,7 @@ class DslToWireMockClientConverterSpec extends Specification {
     "url" : "/users/password",
     "method" : "POST",
     "bodyPatterns" : [ {
-      "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4})?/)]"
+      "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6})?/)]"
     }, {
       "matchesJsonPath" : "$[?(@.['callback_url'] =~ /((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?/)]"
     } ],
@@ -758,7 +758,7 @@ class DslToWireMockClientConverterSpec extends Specification {
 		"url" : "/users/password2",
 		"method" : "POST",
 		"bodyPatterns" : [ {
-		  "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4})/)]"
+		  "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6})/)]"
 		}, {
 		  "matchesJsonPath" : "$[?(@.['callback_url'] =~ /(((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?)/)]"
 		} ],
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
index 6151f85bde..85d25b5bc6 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/JaxRsClientMethodBuilderSpec.groovy
@@ -1061,7 +1061,7 @@ class JaxRsClientMethodBuilderSpec extends Specification implements WireMockStub
 			test.contains('assertThatJson(parsedJson).field("[\'hostname\']").matches("((http[s]?|ftp):/)/?([^:/\\\\s]+)(:[0-9]{1,5})?")')
 			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?\\\\d*(\\\\.\\\\d+)?")')
-			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4}")')
+			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6}")')
 			test.contains('assertThatJson(parsedJson).field("[\'ip\']").matches("([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])")')
 			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}")')
 			test.contains('assertThatJson(parsedJson).field("[\'date\']").matches("(\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])")')
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
index 8bf4cce37c..e555fd0d93 100644
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/builder/MockMvcMethodBodyBuilderSpec.groovy
@@ -922,7 +922,7 @@ class MockMvcMethodBodyBuilderSpec extends Specification implements WireMockStub
 			builder.appendTo(blockBuilder)
 			def test = blockBuilder.toString()
 		then:
-			test.contains("""assertThatJson(parsedJson).field("['message']").matches("User not found by email = \\\\\\\\[[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\\\\\.[a-zA-Z]{2,4}\\\\\\\\]")""")
+			test.contains("""assertThatJson(parsedJson).field("['message']").matches("User not found by email = \\\\\\\\[[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\\\\\.[a-zA-Z]{2,6}\\\\\\\\]")""")
 		and:
 			// no static compilation due to bug in Groovy https://issues.apache.org/jira/browse/GROOVY-8055
 			SyntaxChecker.tryToCompileWithoutCompileStatic(methodBuilderName, blockBuilder.toString())
@@ -1959,7 +1959,7 @@ World.'''"""
 			test.contains('assertThatJson(parsedJson).field("[\'hostname\']").matches("((http[s]?|ftp):/)/?([^:/\\\\s]+)(:[0-9]{1,5})?")')
 			test.contains('assertThatJson(parsedJson).field("[\'url\']").matches("^(?:(?:[A-Za-z][+-.\\\\w^_]*:/{2})?(?:\\\\S+(?::\\\\S*)?@)?(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff0-9]-*)*[a-z\\\\u00a1-\\\\uffff0-9]+)*(?:\\\\.(?:[a-z\\\\u00a1-\\\\uffff]{2,})))(?::\\\\d{2,5})?(?:/\\\\S*)?)')
 			test.contains('assertThatJson(parsedJson).field("[\'number\']").matches("-?\\\\d*(\\\\.\\\\d+)?")')
-			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4}")')
+			test.contains('assertThatJson(parsedJson).field("[\'email\']").matches("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6}")')
 			test.contains('assertThatJson(parsedJson).field("[\'ip\']").matches("([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])\\\\.([01]?\\\\d\\\\d?|2[0-4]\\\\d|25[0-5])")')
 			test.contains('assertThatJson(parsedJson).field("[\'uuid\']").matches("[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}")')
 			test.contains('assertThatJson(parsedJson).field("[\'date\']").matches("(\\\\d\\\\d\\\\d\\\\d)-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])')
diff --git a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/dsl/WireMockGroovyDslSpec.groovy b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/dsl/WireMockGroovyDslSpec.groovy
index 0a3db855c6..5a7d1f3424 100755
--- a/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/dsl/WireMockGroovyDslSpec.groovy
+++ b/spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/dsl/WireMockGroovyDslSpec.groovy
@@ -1365,7 +1365,7 @@ class WireMockGroovyDslSpec extends Specification implements WireMockStubVerifie
 			"bodyPatterns" : [ {
 			  "matchesJsonPath" : "$[?(@.['callback_url'] =~ /((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?/)]"
 			}, {
-			  "matchesJsonPath" : "$[?(@.['email'] =~ /[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4}/)]"
+			  "matchesJsonPath" : "$[?(@.['email'] =~ /[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6}/)]"
 			} ],
 			"headers" : {
 			  "Content-Type" : {
@@ -1446,7 +1446,7 @@ class WireMockGroovyDslSpec extends Specification implements WireMockStubVerifie
 				"bodyPatterns" : [ {
 				  "matchesJsonPath" : "$[?(@.['callback_url'] =~ /((http[s]?|ftp):\\\\/)\\\\/?([^:\\\\/\\\\s]+)(:[0-9]{1,5})?/)]"
 				}, {
-				  "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,4})?/)]"
+				  "matchesJsonPath" : "$[?(@.['email'] =~ /([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,6})?/)]"
 				} ],
 				"headers" : {
 				  "Content-Type" : {