diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/lang/Validator.java b/hutool-core/src/main/java/org/dromara/hutool/core/lang/Validator.java
index a4c73c3de..bb5ed90f8 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/lang/Validator.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/lang/Validator.java
@@ -615,12 +615,18 @@ public class Validator {
 	}
 
 	/**
-	 * 验证是否为可用邮箱地址
+	 * 验证是否为可用邮箱地址<br>
+	 * 邮箱地址限制长度为254个字符，参考：https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754
 	 *
 	 * @param value 值
 	 * @return true为可用邮箱地址
 	 */
 	public static boolean isEmail(final CharSequence value) {
+		final int codeLength = StrUtil.codeLength(value);
+		if(codeLength < 1 || codeLength > 254){
+			return false;
+		}
+
 		return isMatchRegex(PatternPool.EMAIL, value);
 	}
 
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/regex/PatternPool.java b/hutool-core/src/main/java/org/dromara/hutool/core/regex/PatternPool.java
index 3fc2658f7..cba5f5932 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/regex/PatternPool.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/regex/PatternPool.java
@@ -61,9 +61,12 @@ public class PatternPool {
 	 */
 	public final static Pattern MONEY = Pattern.compile(RegexPool.MONEY);
 	/**
-	 * 邮件，符合RFC 5322规范，正则来自：<a href="http://emailregex.com/">http://emailregex.com/</a><br>
-	 * <a href="https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754">https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754</a>
-	 * 注意email 要宽松一点。比如 jetz.chong@hutool.cn、jetz-chong@ hutool.cn、jetz_chong@hutool.cn、dazhi.duan@hutool.cn 宽松一点把，都算是正常的邮箱
+	 * 邮件，符合RFC 5322规范，注意email 要宽松一点。比如 jetz.chong@hutool.cn、jetz-chong@ hutool.cn、jetz_chong@hutool.cn、dazhi.duan@hutool.cn 宽松一点把，都算是正常的邮箱。
+	 * 参考：
+	 * <ul>
+	 *     <li>https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754</li>
+	 *     <li>https://stackoverflow.com/questions/201323/how-can-i-validate-an-email-address-using-a-regular-expression</li>
+	 * </ul>
 	 */
 	public final static Pattern EMAIL = Pattern.compile(RegexPool.EMAIL, Pattern.CASE_INSENSITIVE);
 	/**
diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/regex/RegexPool.java b/hutool-core/src/main/java/org/dromara/hutool/core/regex/RegexPool.java
index f0ad97858..993c9c828 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/regex/RegexPool.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/regex/RegexPool.java
@@ -59,9 +59,13 @@ public interface RegexPool {
 	 */
 	String MONEY = "^(\\d+(?:\\.\\d+)?)$";
 	/**
-	 * 邮件，符合RFC 5322规范。
-	 * What is the maximum length of a valid email address? <a href="https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754">https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754</a>
-	 * 注意email 要宽松一点。比如 jetz.chong@hutool.cn、jetz-chong@ hutool.cn、jetz_chong@hutool.cn、dazhi.duan@hutool.cn 宽松一点把，都算是正常的邮箱
+	 * 邮件，符合RFC 5322规范，注意email 要宽松一点。比如 jetz.chong@hutool.cn、jetz-chong@ hutool.cn、jetz_chong@hutool.cn、dazhi.duan@hutool.cn 宽松一点把，都算是正常的邮箱。<br>
+	 * 正则来自：<a href="http://emailregex.com/">http://emailregex.com/</a>
+	 * 参考：
+	 * <ul>
+	 *     <li>https://stackoverflow.com/questions/386294/what-is-the-maximum-length-of-a-valid-email-address/44317754</li>
+	 *     <li>https://stackoverflow.com/questions/201323/how-can-i-validate-an-email-address-using-a-regular-expression</li>
+	 * </ul>
 	 */
 	String EMAIL = "(?:[a-z0-9\\u4e00-\\u9fa5!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9\\u4e00-\\u9fa5!#$%&'*+/=?^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9\\u4e00-\\u9fa5](?:[a-z0-9\\u4e00-\\u9fa5-]*[a-z0-9\\u4e00-\\u9fa5])?\\.)+[a-z0-9\\u4e00-\\u9fa5](?:[a-z0-9\\u4e00-\\u9fa5-]*[a-z0-9\\u4e00-\\u9fa5])?|\\[(?:(?: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-z0-9\\u4e00-\\u9fa5-]*[a-z0-9\\u4e00-\\u9fa5]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)])";
 	/**
diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/lang/ValidatorTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/lang/ValidatorTest.java
index 622342dc5..8d37cd641 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/lang/ValidatorTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/lang/ValidatorTest.java
@@ -135,6 +135,12 @@ public class ValidatorTest {
 		Assertions.assertTrue(email5);
 	}
 
+	@Test
+	void issueI94YYUTest() {
+		final boolean ret = PatternPool.EMAIL.matcher(StrUtil.repeat("hutool\\\"", 1000)).matches();
+		Assertions.assertFalse(ret);
+	}
+
 	@Test
 	public void isMobileTest() {
 		final boolean m1 = Validator.isMobile("13900221432");
@@ -143,6 +149,8 @@ public class ValidatorTest {
 		Assertions.assertTrue(m2);
 		final boolean m3 = Validator.isMobile("+8618600221432");
 		Assertions.assertTrue(m3);
+		final boolean m4 = Validator.isMobile("19312341234");
+		Assertions.assertTrue(m4);
 	}
 
 	@Test