diff --git a/frontend/src/views/admin/UserSettings.vue b/frontend/src/views/admin/UserSettings.vue
index 0ffafd7f..5e7e0e7d 100644
--- a/frontend/src/views/admin/UserSettings.vue
+++ b/frontend/src/views/admin/UserSettings.vue
@@ -21,6 +21,8 @@ const { t } = useI18n({
             manualInputPrompt: 'Type and press Enter to add',
             mailAllowList: 'Mail Address Allow List',
             maxAddressCount: 'Maximum number of email addresses that can be binded',
+            emailCheckRegex: 'Email Check Regex (e.g. ^[^.]+@.+$ to disallow dots before @)',
+            enableEmailCheckRegex: 'Enable Email Check Regex',
         },
         zh: {
             save: '保存',
@@ -33,6 +35,8 @@ const { t } = useI18n({
             manualInputPrompt: '输入后按回车键添加',
             mailAllowList: '邮件地址白名单',
             maxAddressCount: '可绑定最大邮箱地址数量',
+            emailCheckRegex: '邮箱正则校验 (例如 ^[^.]+@.+$ 禁止@前面有.)',
+            enableEmailCheckRegex: '启用邮箱正则校验',
         }
     }
 });
@@ -53,6 +57,8 @@ const userSettings = ref({
     enableMailAllowList: false,
     mailAllowList: commonMail,
     maxAddressCount: 5,
+    enableEmailCheckRegex: false,
+    emailCheckRegex: "",
 });
 
 const fetchData = async () => {
@@ -125,6 +131,16 @@ onMounted(async () => {
                             :placeholder="t('maxAddressCount')" />
                     </n-input-group>
                 </n-form-item-row>
+                <n-form-item-row :label="t('enableEmailCheckRegex')">
+                    <n-input-group>
+                        <n-checkbox v-model:checked="userSettings.enableEmailCheckRegex" style="width: 20%;">
+                            {{ t('enable') }}
+                        </n-checkbox>
+                        <n-input v-model:value="userSettings.emailCheckRegex"
+                            v-if="userSettings.enableEmailCheckRegex"
+                            style="width: 80%;" :placeholder="t('emailCheckRegex')" />
+                    </n-input-group>
+                </n-form-item-row>
             </n-form>
         </n-card>
     </div>
diff --git a/worker/src/i18n/en.ts b/worker/src/i18n/en.ts
index cbb9d323..3c3f1cb9 100644
--- a/worker/src/i18n/en.ts
+++ b/worker/src/i18n/en.ts
@@ -26,6 +26,7 @@ const messages: LocaleMessages = {
     FailedToRegisterMsg: "Failed to register",
     UserRegistrationDisabledMsg: "User registration is disabled, please contact the administrator",
     UserMailDomainMustInMsg: "User mail domain must be in this list",
+    UserEmailNotMatchRegexMsg: "Email address format does not match the required pattern",
     InvalidVerifyCodeMsg: "Invalid verify code",
     InvalidEmailOrPasswordMsg: "Invalid email or password",
     VerifyMailSenderNotSetMsg: "Verify mail sender address is not set, please contact the administrator",
diff --git a/worker/src/i18n/type.ts b/worker/src/i18n/type.ts
index ac92c1a3..a47d034d 100644
--- a/worker/src/i18n/type.ts
+++ b/worker/src/i18n/type.ts
@@ -24,6 +24,7 @@ export type LocaleMessages = {
     FailedToRegisterMsg: string
     UserRegistrationDisabledMsg: string
     UserMailDomainMustInMsg: string
+    UserEmailNotMatchRegexMsg: string
     InvalidVerifyCodeMsg: string
     InvalidEmailOrPasswordMsg: string
     VerifyMailSenderNotSetMsg: string
diff --git a/worker/src/i18n/zh.ts b/worker/src/i18n/zh.ts
index 7cce2d1a..7bfadfe9 100644
--- a/worker/src/i18n/zh.ts
+++ b/worker/src/i18n/zh.ts
@@ -26,6 +26,7 @@ const messages: LocaleMessages = {
     FailedToRegisterMsg: "注册失败",
     UserRegistrationDisabledMsg: "用户注册已禁用, 请联系管理员",
     UserMailDomainMustInMsg: "用户邮箱域必须在此列表中",
+    UserEmailNotMatchRegexMsg: "邮箱地址格式不符合要求",
     InvalidVerifyCodeMsg: "无效的验证码",
     InvalidEmailOrPasswordMsg: "无效的邮箱或密码",
     VerifyMailSenderNotSetMsg: "验证邮件发送邮箱未设置, 请联系管理员",
diff --git a/worker/src/models/index.ts b/worker/src/models/index.ts
index f576f983..78d119ba 100644
--- a/worker/src/models/index.ts
+++ b/worker/src/models/index.ts
@@ -99,11 +99,14 @@ export class UserSettings {
     enableMailAllowList: boolean | undefined;
     mailAllowList: string[] | undefined;
     maxAddressCount: number;
+    enableEmailCheckRegex: boolean | undefined;
+    emailCheckRegex: string | undefined;
 
     constructor(data: UserSettings | undefined | null) {
         const {
             enable, enableMailVerify, verifyMailSender,
-            enableMailAllowList, mailAllowList, maxAddressCount
+            enableMailAllowList, mailAllowList, maxAddressCount,
+            enableEmailCheckRegex, emailCheckRegex
         } = data || {};
         this.enable = enable;
         this.enableMailVerify = enableMailVerify;
@@ -111,6 +114,8 @@ export class UserSettings {
         this.enableMailAllowList = enableMailAllowList;
         this.mailAllowList = mailAllowList;
         this.maxAddressCount = maxAddressCount || 5;
+        this.enableEmailCheckRegex = enableEmailCheckRegex;
+        this.emailCheckRegex = emailCheckRegex;
     }
 }
 
diff --git a/worker/src/user_api/user.ts b/worker/src/user_api/user.ts
index dfb71f56..4e64be1a 100644
--- a/worker/src/user_api/user.ts
+++ b/worker/src/user_api/user.ts
@@ -27,6 +27,17 @@ export default {
         ) {
             return c.text(`${msgs.UserMailDomainMustInMsg} ${JSON.stringify(settings.mailAllowList, null, 2)}`, 400)
         }
+        // check email regex
+        if (settings.enableEmailCheckRegex && settings.emailCheckRegex) {
+            try {
+                const regex = new RegExp(settings.emailCheckRegex);
+                if (!regex.test(email)) {
+                    return c.text(`${msgs.UserEmailNotMatchRegexMsg}: /${settings.emailCheckRegex}/`, 400)
+                }
+            } catch (e) {
+                console.error("Failed to check user email regex", e);
+            }
+        }
         if (!settings.verifyMailSender) {
             return c.text(msgs.VerifyMailSenderNotSetMsg, 400)
         }
@@ -82,6 +93,17 @@ export default {
         ) {
             return c.text(`${msgs.UserMailDomainMustInMsg} ${JSON.stringify(settings.mailAllowList, null, 2)}`, 400)
         }
+        // check email regex
+        if (settings.enableEmailCheckRegex && settings.emailCheckRegex) {
+            try {
+                const regex = new RegExp(settings.emailCheckRegex);
+                if (!regex.test(email)) {
+                    return c.text(`${msgs.UserEmailNotMatchRegexMsg}: /${settings.emailCheckRegex}/`, 400)
+                }
+            } catch (e) {
+                console.error("Failed to check user email regex", e);
+            }
+        }
         // check code
         if (settings.enableMailVerify) {
             const verifyCode = await c.env.KV.get(`temp-mail:${email}`)