Outlook：如何在沒有答覆時自動重新發送郵件

Author: Sun Last Modified: 2025-08-06

當您向同事、合作夥伴或其他人發送郵件並且急需得到答覆時，您可以設置一個自動重新發送郵件的設定，以防在指定時間之前未收到答覆。

使用提醒和VBA來設置無答覆時自動重新發送

第一部分：設置提醒以在指定時間提醒

1. 右鍵單擊您希望在沒有答覆時重新發送的郵件（從已傳送郵件資料夾中），在彈出的上下文選單中，點擊「需後續工作」>「新增提醒」。

2. 在彈出的「自定義」對話框中，保持「提醒」複選框被勾選，然後在下方的下拉框中選擇您希望收到答覆的日期和時間，您也可以直接在框中輸入日期和時間。點擊「確定」。

第二部分：插入VBA程式碼以在指定時間內無答覆時重新發送郵件

3. 按下「Alt」+「F11」鍵以啟用「Microsoft Visual Basic for Applications」窗口。

4. 在「專案 – 專案1」窗格中雙擊「ThisOutlookSession」以創建一個空白腳本，並將以下VBA代碼複製並粘貼到空白腳本中。

VBA：如果沒有答覆則重新發送郵件

Public WithEvents GInboxItems As Outlook.Items
'UpdatebyExtendoffice20220413
Private Sub Application_Startup()
  Dim xInboxFld As Folder
  Set xInboxFld = Application.Session.GetDefaultFolder(olFolderInbox)
  Set GInboxItems = xInboxFld.Items
End Sub

'Judge
Private Sub GInboxItems_ItemAdd(ByVal Item As Object)
  Dim xSentItems As Outlook.Items
  Dim xMail As MailItem
  Dim i As Long
  Dim xSubject As String
  Dim xItemSubject As String
  Dim xSendTime As String
  On Error Resume Next
  Set xSentItems = Application.Session.GetDefaultFolder(olFolderSentMail).Items
  If Item.Class <> olMail Then Exit Sub
  For i = xSentItems.Count To 1 Step -1
    If xSentItems.Item(i).Class = olMail Then
      Set xMail = xSentItems.Item(i)
      xSubject = LCase(xMail.Subject)
      xSendTime = xMail.SentOn
      xItemSubject = LCase(Item.Subject)
      If (xItemSubject = "re: " & xSubject) Or (InStr(xItemSubject, xSubject) > 0) Then
        If Item.SentOn > xSendTime Then
           With xMail
             .ClearTaskFlag
             .ReminderSet = False
             .Save
           End With
        End If
      End If
    End If
  Next i
End Sub

'Reminder
Private Sub Application_Reminder(ByVal Item As Object)
  Dim xPrompt As String
  Dim xResponse As Integer
  Dim xFollowUpMail As Outlook.MailItem
  Dim xRcp As Recipient
  On Error Resume Next
  'Resend
  If (Item.Class <> olMail) Then Exit Sub
  xPrompt = "You haven't yet received the reply of " & Chr(34) & Item.Subject & Chr(34) & " within your expected time. Do you want to send a follow-up notification email?"
  xResponse = MsgBox(xPrompt, vbYesNo + vbQuestion, "Kutools for Outlook")
  If xResponse = vbNo Then Exit Sub
  Set xFollowUpMail = Application.CreateItem(olMailItem)
  With xFollowUpMail
    For Each xRcp In Item.Recipients
      .Recipients.Add (xRcp.Address)
    Next
    .Recipients.ResolveAll
    .Subject = "Follow Up: " & Chr(34) & Item.Subject & Chr(34)
    .Body = "Please respond to my email " & Chr(34) & Item.Subject & Chr(34) & " as soon as possible"
    .Attachments.Add Item
    .Display
  End With
End Sub

5. 保存代碼，然後返回主界面，點擊「文件」>「選項」，在「Outlook 選項」窗口中，點擊左側窗格中的「信任中心」，然後點擊「信任中心設置」以啟用「信任中心」窗口。點擊「宏設置」，並確保右側部分中選擇了「啟用所有宏（不推薦；可能執行危險代碼）」選項。點擊「確定」>「確定」。