diff --git a/frontend/src/components/EmailDetail.tsx b/frontend/src/components/EmailDetail.tsx
index af00f0c..6f79b20 100644
--- a/frontend/src/components/EmailDetail.tsx
+++ b/frontend/src/components/EmailDetail.tsx
@@ -21,35 +21,16 @@ interface Attachment {
 
 const EmailDetail: React.FC<EmailDetailProps> = ({ emailId, onClose }) => {
   const { t } = useTranslation();
-  const { emailCache, addToEmailCache, handleMailboxNotFound } = useContext(MailboxContext);
+  // fix: 从 context 中获取全局通知函数
+  const { emailCache, addToEmailCache, handleMailboxNotFound, showErrorMessage, showSuccessMessage } = useContext(MailboxContext);
   const [email, setEmail] = useState<Email | null>(null);
   const [attachments, setAttachments] = useState<Attachment[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [isLoadingAttachments, setIsLoadingAttachments] = useState(false);
-  const [errorMessage, setErrorMessage] = useState<string | null>(null);
-  const [successMessage, setSuccessMessage] = useState<string | null>(null);
-  const errorTimeoutRef = useRef<number | null>(null);
-  const successTimeoutRef = useRef<number | null>(null);
-  
-  // 清除提示的定时器
-  useEffect(() => {
-    return () => {
-      if (errorTimeoutRef.current) {
-        window.clearTimeout(errorTimeoutRef.current);
-      }
-      if (successTimeoutRef.current) {
-        window.clearTimeout(successTimeoutRef.current);
-      }
-    };
-  }, []);
   
   useEffect(() => {
     const fetchEmail = async () => {
       try {
-        // 清除之前的错误和成功信息
-        setErrorMessage(null);
-        setSuccessMessage(null);
-        
         // 首先检查缓存中是否有该邮件
         if (emailCache[emailId]) {
           setEmail(emailCache[emailId].email);
@@ -86,22 +67,15 @@ const EmailDetail: React.FC<EmailDetailProps> = ({ emailId, onClose }) => {
           throw new Error(data.error || 'Unknown error');
         }
       } catch (error) {
-        setErrorMessage(t('email.fetchFailed'));
-        
-        // 3秒后清除错误信息
-        if (errorTimeoutRef.current) {
-          window.clearTimeout(errorTimeoutRef.current);
-        }
-        errorTimeoutRef.current = window.setTimeout(() => {
-          setErrorMessage(null);
-        }, 3000);
+        // fix: 使用全局通知函数
+        showErrorMessage(t('email.fetchFailed'));
       } finally {
         setIsLoading(false);
       }
     };
     
     fetchEmail();
-  }, [emailId, t, emailCache, addToEmailCache, handleMailboxNotFound, onClose]);
+  }, [emailId, t, emailCache, addToEmailCache, handleMailboxNotFound, onClose, showErrorMessage]);
   
   const fetchAttachments = async (emailId: string, emailData?: Email) => {
     try {
@@ -138,10 +112,6 @@ const EmailDetail: React.FC<EmailDetailProps> = ({ emailId, onClose }) => {
   
   const handleDelete = async () => {
     try {
-      // 清除之前的错误和成功信息
-      setErrorMessage(null);
-      setSuccessMessage(null);
-      
       const response = await fetch(`${API_BASE_URL}/api/emails/${emailId}`, {
         method: 'DELETE',
       });
@@ -152,28 +122,19 @@ const EmailDetail: React.FC<EmailDetailProps> = ({ emailId, onClose }) => {
       
       const data = await response.json();
       if (data.success) {
-        setSuccessMessage(t('email.deleteSuccess'));
+        // fix: 使用全局通知函数
+        showSuccessMessage(t('email.deleteSuccess'));
         
         // 2秒后关闭邮件详情
-        if (successTimeoutRef.current) {
-          window.clearTimeout(successTimeoutRef.current);
-        }
-        successTimeoutRef.current = window.setTimeout(() => {
+        setTimeout(() => {
           onClose();
         }, 2000);
       } else {
         throw new Error(data.error || 'Unknown error');
       }
     } catch (error) {
-      setErrorMessage(t('email.deleteFailed'));
-      
-      // 3秒后清除错误信息
-      if (errorTimeoutRef.current) {
-        window.clearTimeout(errorTimeoutRef.current);
-      }
-      errorTimeoutRef.current = window.setTimeout(() => {
-        setErrorMessage(null);
-      }, 3000);
+      // fix: 使用全局通知函数
+      showErrorMessage(t('email.deleteFailed'));
     }
   };
   
@@ -285,13 +246,7 @@ const EmailDetail: React.FC<EmailDetailProps> = ({ emailId, onClose }) => {
   
   return (
     <div className="border rounded-lg p-6">
-      {/* 错误和成功提示 */}
-      {(errorMessage || successMessage) && (
-        <div className={`p-3 mb-4 rounded-md ${errorMessage ? 'bg-red-100 text-red-800' : 'bg-green-100 text-green-800'}`}>
-          {errorMessage || successMessage}
-        </div>
-      )}
-      
+      {/* fix: 移除局部的错误和成功提示，使用全局通知 */}
       {isLoading ? (
         <div className="flex items-center justify-center h-64">
           <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary"></div>
diff --git a/frontend/src/components/HeaderMailbox.tsx b/frontend/src/components/HeaderMailbox.tsx
index 212b791..37233e0 100644
--- a/frontend/src/components/HeaderMailbox.tsx
+++ b/frontend/src/components/HeaderMailbox.tsx
@@ -1,7 +1,8 @@
-import React, { useState, useRef, useEffect } from 'react';
+import React, { useState, useRef, useEffect, useContext } from 'react'; // feat: 导入 useContext
 import { useTranslation } from 'react-i18next';
 import { createRandomMailbox, createCustomMailbox } from '../utils/api';
 import MailboxSwitcher from './MailboxSwitcher';
+import { MailboxContext } from '../contexts/MailboxContext'; // feat: 导入 MailboxContext
 
 interface HeaderMailboxProps {
   mailbox: Mailbox | null;
@@ -19,20 +20,18 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
   isLoading
 }) => {
   const { t } = useTranslation();
+  // feat: 从 context 中获取全局通知函数
+  const { showSuccessMessage, showErrorMessage } = useContext(MailboxContext);
   const [isCustomMode, setIsCustomMode] = useState(false);
   const [customAddress, setCustomAddress] = useState('');
   const [selectedDomain, setSelectedDomain] = useState(domain);
   const [isActionLoading, setIsActionLoading] = useState(false);
   const [showCopyTooltip, setShowCopyTooltip] = useState(false);
-  const [copyError, setCopyError] = useState<string | null>(null);
-  const [refreshError, setRefreshError] = useState<string | null>(null);
+  // fix: 移除独立的错误状态，因为将使用全局通知
   const [customAddressError, setCustomAddressError] = useState<string | null>(null);
-  const [customAddressSuccess, setCustomAddressSuccess] = useState<string | null>(null);
   const [showRefreshSuccess, setShowRefreshSuccess] = useState(false);
   const copyTooltipTimeoutRef = useRef<number | null>(null);
   const refreshSuccessTimeoutRef = useRef<number | null>(null);
-  const successMessageTimeoutRef = useRef<number | null>(null);
-  const errorMessageTimeoutRef = useRef<number | null>(null);
   
   // 当props中的domain变化时更新selectedDomain
   useEffect(() => {
@@ -48,12 +47,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
       if (refreshSuccessTimeoutRef.current) {
         window.clearTimeout(refreshSuccessTimeoutRef.current);
       }
-      if (successMessageTimeoutRef.current) {
-        window.clearTimeout(successMessageTimeoutRef.current);
-      }
-      if (errorMessageTimeoutRef.current) {
-        window.clearTimeout(errorMessageTimeoutRef.current);
-      }
     };
   }, []);
   
@@ -61,13 +54,10 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
   
   // 复制邮箱地址到剪贴板
   const copyToClipboard = () => {
-    // 清除之前的错误信息
-    setCopyError(null);
-    
     const fullAddress = mailbox.address.includes('@') ? mailbox.address : `${mailbox.address}@${selectedDomain}`;
     navigator.clipboard.writeText(fullAddress)
       .then(() => {
-        // 显示复制成功提示
+        // 显示复制成功提示 (Tooltip 形式，保留局部状态)
         setShowCopyTooltip(true);
         
         // 2秒后隐藏提示
@@ -79,24 +69,13 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
         }, 2000);
       })
       .catch(() => {
-        // 显示复制失败错误
-        setCopyError(t('mailbox.copyFailed'));
-        
-        // 3秒后隐藏错误
-        if (errorMessageTimeoutRef.current) {
-          window.clearTimeout(errorMessageTimeoutRef.current);
-        }
-        errorMessageTimeoutRef.current = window.setTimeout(() => {
-          setCopyError(null);
-        }, 3000);
+        // fix: 使用全局通知函数显示复制失败
+        showErrorMessage(t('mailbox.copyFailed'));
       });
   };
   
   // 更换随机邮箱
   const handleRefreshMailbox = async () => {
-    // 清除之前的错误信息
-    setRefreshError(null);
-    
     setIsActionLoading(true);
     const result = await createRandomMailbox();
     setIsActionLoading(false);
@@ -104,7 +83,7 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
     if (result.success && result.mailbox) {
       onMailboxChange(result.mailbox);
       
-      // 显示更新成功提示
+      // 显示更新成功提示 (Tooltip 形式，保留局部状态)
       setShowRefreshSuccess(true);
       
       // 3秒后隐藏提示
@@ -115,16 +94,8 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
         setShowRefreshSuccess(false);
       }, 3000);
     } else {
-      // 显示刷新失败错误
-      setRefreshError(t('mailbox.refreshFailed'));
-      
-      // 3秒后隐藏错误
-      if (errorMessageTimeoutRef.current) {
-        window.clearTimeout(errorMessageTimeoutRef.current);
-      }
-      errorMessageTimeoutRef.current = window.setTimeout(() => {
-        setRefreshError(null);
-      }, 3000);
+      // fix: 使用全局通知函数显示刷新失败
+      showErrorMessage(t('mailbox.refreshFailed'));
     }
   };
   
@@ -132,9 +103,8 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
   const handleCreateCustom = async (e: React.FormEvent) => {
     e.preventDefault();
     
-    // 清除之前的错误和成功信息
+    // 清除之前的错误信息
     setCustomAddressError(null);
-    setCustomAddressSuccess(null);
     
     if (!customAddress.trim()) {
       setCustomAddressError(t('mailbox.invalidAddress'));
@@ -147,18 +117,13 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
     
     if (result.success && result.mailbox) {
       onMailboxChange(result.mailbox);
-      
-      // 显示成功消息在表单下方
-      setCustomAddressSuccess(t('mailbox.createSuccess'));
+      // fix: 使用全局通知函数显示成功
+      showSuccessMessage(t('mailbox.createSuccess'));
       
       // 3秒后自动关闭表单
-      if (successMessageTimeoutRef.current) {
-        window.clearTimeout(successMessageTimeoutRef.current);
-      }
-      successMessageTimeoutRef.current = window.setTimeout(() => {
+      setTimeout(() => {
         setIsCustomMode(false);
         setCustomAddress('');
-        setCustomAddressSuccess(null);
       }, 3000);
     } else {
       // 检查错误信息是否包含"邮箱地址已存在"
@@ -167,9 +132,11 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
         String(result.error).includes('已存在');
       
       if (isAddressExistsError) {
+        // fix: 对于表单内校验错误，保留局部状态提示
         setCustomAddressError(t('mailbox.addressExists'));
       } else {
-        setCustomAddressError(t('mailbox.createFailed'));
+        // fix: 对于通用创建失败，使用全局通知
+        showErrorMessage(t('mailbox.createFailed'));
       }
     }
   };
@@ -179,7 +146,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
     setIsCustomMode(false);
     setCustomAddress('');
     setCustomAddressError(null);
-    setCustomAddressSuccess(null);
   };
   
   // 移动设备上的邮箱地址显示
@@ -222,7 +188,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
                 onChange={(e) => {
                   setCustomAddress(e.target.value);
                   if (customAddressError) setCustomAddressError(null);
-                  if (customAddressSuccess) setCustomAddressSuccess(null);
                 }}
                 className={`w-32 md:w-40 px-2 py-1 text-sm border rounded-l-md focus:outline-none focus:ring-1 focus:ring-primary ${
                   customAddressError ? 'border-red-500' : ''
@@ -274,12 +239,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
             </div>
           )}
           
-          {/* 成功信息显示 */}
-          {customAddressSuccess && (
-            <div className="text-green-500 text-xs px-1">
-              {customAddressSuccess}
-            </div>
-          )}
         </form>
       ) : (
         <>
@@ -360,12 +319,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
               </button>
             </div>
             
-            {/* 错误信息显示 */}
-            {(copyError || refreshError) && (
-              <div className="text-red-500 text-xs mt-1">
-                {copyError || refreshError}
-              </div>
-            )}
           </div>
           
           {/* 移动版显示 */}
@@ -433,13 +386,6 @@ const HeaderMailbox: React.FC<HeaderMailboxProps> = ({
               </button>
             </div>
           </div>
-      
-          {/* 错误信息显示 */}
-          {(copyError || refreshError) && (
-                <div className="text-red-500 text-xs mt-1">
-              {copyError || refreshError}
-            </div>
-          )}
         </>
       )}
     </div>
diff --git a/frontend/src/contexts/MailboxContext.tsx b/frontend/src/contexts/MailboxContext.tsx
index 8f39da1..00a65c8 100644
--- a/frontend/src/contexts/MailboxContext.tsx
+++ b/frontend/src/contexts/MailboxContext.tsx
@@ -40,6 +40,9 @@ interface MailboxContextType {
   handleMailboxNotFound: () => Promise<void>;
   errorMessage: string | null;
   successMessage: string | null;
+  // feat: 添加用于显示全局通知的函数
+  showSuccessMessage: (message: string) => void;
+  showErrorMessage: (message: string) => void;
 }
 
 export const MailboxContext = createContext<MailboxContextType>({
@@ -62,7 +65,10 @@ export const MailboxContext = createContext<MailboxContextType>({
   clearEmailCache: () => {},
   handleMailboxNotFound: async () => {},
   errorMessage: null,
-  successMessage: null
+  successMessage: null,
+  // feat: 提供默认空函数
+  showSuccessMessage: () => {},
+  showErrorMessage: () => {},
 });
 
 interface MailboxProviderProps {
@@ -83,6 +89,29 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
   const errorTimeoutRef = useRef<number | null>(null);
   const successTimeoutRef = useRef<number | null>(null);
 
+  // feat: 创建显示成功消息的函数
+  const showSuccessMessage = (message: string) => {
+    setSuccessMessage(message);
+    if (successTimeoutRef.current) {
+      window.clearTimeout(successTimeoutRef.current);
+    }
+    successTimeoutRef.current = window.setTimeout(() => {
+      setSuccessMessage(null);
+    }, 3000);
+  };
+
+  // feat: 创建显示错误消息的函数
+  const showErrorMessage = (message: string) => {
+    setErrorMessage(message);
+    if (errorTimeoutRef.current) {
+      window.clearTimeout(errorTimeoutRef.current);
+    }
+    errorTimeoutRef.current = window.setTimeout(() => {
+      setErrorMessage(null);
+    }, 3000);
+  };
+
+
   // 清除提示的定时器
   useEffect(() => {
     return () => {
@@ -137,15 +166,8 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
         clearEmailCache();
       } else {
         console.error('createNewMailbox: Failed to create mailbox:', result.error);
-        setErrorMessage(t('mailbox.createFailed'));
-
-        // 3秒后清除错误信息
-        if (errorTimeoutRef.current) {
-          window.clearTimeout(errorTimeoutRef.current);
-        }
-        errorTimeoutRef.current = window.setTimeout(() => {
-          setErrorMessage(null);
-        }, 3000);
+        // fix: 使用全局通知函数
+        showErrorMessage(t('mailbox.createFailed'));
         throw new Error('Failed to create mailbox');
       }
     } catch (error) {
@@ -169,8 +191,8 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
       const result = await apiDeleteMailbox(mailbox.address);
 
       if (result.success) {
-        // 显示成功信息
-        setSuccessMessage(t('mailbox.deleteSuccess'));
+        // fix: 使用全局通知函数
+        showSuccessMessage(t('mailbox.deleteSuccess'));
 
         // 清除本地数据
         setMailbox(null);
@@ -179,41 +201,17 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
         removeMailboxFromLocalStorage();
         clearEmailCache();
 
-        // 3秒后清除成功信息
-        if (successTimeoutRef.current) {
-          window.clearTimeout(successTimeoutRef.current);
-        }
-        successTimeoutRef.current = window.setTimeout(() => {
-          setSuccessMessage(null);
-        }, 3000);
-
         // 创建新邮箱
         await createNewMailbox();
       } else {
-        // 显示错误信息
-        setErrorMessage(t('mailbox.deleteFailed'));
-
-        // 3秒后清除错误信息
-        if (errorTimeoutRef.current) {
-          window.clearTimeout(errorTimeoutRef.current);
-        }
-        errorTimeoutRef.current = window.setTimeout(() => {
-          setErrorMessage(null);
-        }, 3000);
+        // fix: 使用全局通知函数
+        showErrorMessage(t('mailbox.deleteFailed'));
       }
     } catch (error) {
       console.error('Error deleting mailbox:', error);
 
-      // 显示错误信息
-      setErrorMessage(t('mailbox.deleteFailed'));
-
-      // 3秒后清除错误信息
-      if (errorTimeoutRef.current) {
-        window.clearTimeout(errorTimeoutRef.current);
-      }
-      errorTimeoutRef.current = window.setTimeout(() => {
-        setErrorMessage(null);
-      }, 3000);
+      // fix: 使用全局通知函数
+      showErrorMessage(t('mailbox.deleteFailed'));
     }
   };
 
@@ -265,8 +263,8 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
 
   // [fix]: 重构处理邮箱不存在的逻辑，避免页面刷新
   const handleMailboxNotFound = async () => {
-    // 设置提示信息，告知用户正在创建新邮箱
-    setSuccessMessage(t('mailbox.creatingNew'));
+    // fix: 使用全局通知函数
+    showSuccessMessage(t('mailbox.creatingNew'));
     
     // 清除当前无效的邮箱信息
     removeMailboxFromLocalStorage();
@@ -274,14 +272,6 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
     
     // 异步创建新邮箱，并更新应用状态
     await createNewMailbox();
-
-    // 3秒后清除提示信息
-    if (successTimeoutRef.current) {
-      window.clearTimeout(successTimeoutRef.current);
-    }
-    successTimeoutRef.current = window.setTimeout(() => {
-      setSuccessMessage(null);
-    }, 3000);
   };
 
   // 添加邮件到缓存
@@ -376,10 +366,13 @@ export const MailboxProvider: React.FC<MailboxProviderProps> = ({ children }) =>
         clearEmailCache,
         handleMailboxNotFound,
         errorMessage,
-        successMessage
+        successMessage,
+        // feat: 将函数添加到 context value 中
+        showSuccessMessage,
+        showErrorMessage,
       }}
     >
-      {/* [feat] 将错误和成功提示移至此处，作为全局通知组件 */}
+      {/* [feat] 全局通知组件 */}
       {(errorMessage || successMessage) && (
         <div className="fixed top-4 right-4 z-50 p-3 rounded-md shadow-lg max-w-md" style={{ backgroundColor: errorMessage ? '#FEE2E2' : '#ECFDF5', color: errorMessage ? '#991B1B' : '#065F46' }}>
           {errorMessage || successMessage}
diff --git a/frontend/src/pages/MailboxPage.tsx b/frontend/src/pages/MailboxPage.tsx
index 4042697..5c792f2 100644
--- a/frontend/src/pages/MailboxPage.tsx
+++ b/frontend/src/pages/MailboxPage.tsx
@@ -15,28 +15,15 @@ const MailboxPage: React.FC = () => {
     emails, 
     isEmailsLoading, 
     autoRefresh, 
-    setAutoRefresh 
+    setAutoRefresh,
+    // feat: 从 context 中获取全局通知函数
+    showSuccessMessage,
+    showErrorMessage
   } = useContext(MailboxContext);
   
   const [mailbox, setMailbox] = useState<Mailbox | null>(null);
   const [selectedEmail, setSelectedEmail] = useState<string | null>(null);
   const [isLoading, setIsLoading] = useState(true);
-  const [errorMessage, setErrorMessage] = useState<string | null>(null);
-  const [successMessage, setSuccessMessage] = useState<string | null>(null);
-  const errorTimeoutRef = useRef<number | null>(null);
-  const successTimeoutRef = useRef<number | null>(null);
-  
-  // 清除提示的定时器
-  useEffect(() => {
-    return () => {
-      if (errorTimeoutRef.current) {
-        window.clearTimeout(errorTimeoutRef.current);
-      }
-      if (successTimeoutRef.current) {
-        window.clearTimeout(successTimeoutRef.current);
-      }
-    };
-  }, []);
   
   // 获取邮箱信息
   useEffect(() => {
@@ -49,13 +36,11 @@ const MailboxPage: React.FC = () => {
         
         if (!response.ok) {
           if (response.status === 404) {
-            setErrorMessage(t('mailbox.invalidAddress'));
+            // fix: 使用全局通知函数
+            showErrorMessage(t('mailbox.invalidAddress'));
             
             // 3秒后导航到首页
-            if (errorTimeoutRef.current) {
-              window.clearTimeout(errorTimeoutRef.current);
-            }
-            errorTimeoutRef.current = window.setTimeout(() => {
+            setTimeout(() => {
               navigate('/');
             }, 3000);
             return;
@@ -70,22 +55,15 @@ const MailboxPage: React.FC = () => {
           throw new Error(data.error || 'Unknown error');
         }
       } catch (error) {
-        setErrorMessage(String(error));
-        
-        // 3秒后清除错误信息
-        if (errorTimeoutRef.current) {
-          window.clearTimeout(errorTimeoutRef.current);
-        }
-        errorTimeoutRef.current = window.setTimeout(() => {
-          setErrorMessage(null);
-        }, 3000);
+        // fix: 使用全局通知函数
+        showErrorMessage(String(error));
       } finally {
         setIsLoading(false);
       }
     };
     
     fetchMailbox();
-  }, [address, navigate, t]);
+  }, [address, navigate, t, showErrorMessage]);
   
   // 处理删除邮箱
   const handleDeleteMailbox = async () => {
@@ -102,39 +80,25 @@ const MailboxPage: React.FC = () => {
       
       const data = await response.json();
       if (data.success) {
-        setSuccessMessage(t('mailbox.deleteSuccess'));
+        // fix: 使用全局通知函数
+        showSuccessMessage(t('mailbox.deleteSuccess'));
         
         // 2秒后导航到首页
-        if (successTimeoutRef.current) {
-          window.clearTimeout(successTimeoutRef.current);
-        }
-        successTimeoutRef.current = window.setTimeout(() => {
+        setTimeout(() => {
           navigate('/');
         }, 2000);
       } else {
         throw new Error(data.error || 'Unknown error');
       }
     } catch (error) {
-      setErrorMessage(t('mailbox.deleteFailed'));
-      
-      // 3秒后清除错误信息
-      if (errorTimeoutRef.current) {
-        window.clearTimeout(errorTimeoutRef.current);
-      }
-      errorTimeoutRef.current = window.setTimeout(() => {
-        setErrorMessage(null);
-      }, 3000);
+      // fix: 使用全局通知函数
+      showErrorMessage(t('mailbox.deleteFailed'));
     }
   };
   
   return (
     <div className="flex flex-col space-y-6">
-      {/* 错误和成功提示 */}
-      {(errorMessage || successMessage) && (
-        <div className={`p-3 rounded-md ${errorMessage ? 'bg-red-100 text-red-800' : 'bg-green-100 text-green-800'}`}>
-          {errorMessage || successMessage}
-        </div>
-      )}
+      {/* fix: 移除局部的错误和成功提示 */}
       
       {mailbox && (
         <MailboxInfo