如何在通過 Outlook 發送之前檢查收件人地址？

Author: Sun Last Modified: 2025-08-06

有時候，您可能會在通過 Outlook 發送電子郵件時，忘記將一些重要的收件人添加到「收件人」、「抄送」或「密件抄送」欄位中。在這裡，我將介紹一種方法，在通過 Outlook 發送之前檢查特定的郵件地址是否已經被添加。

使用 VBA 代碼在發送前檢查地址

這裡我有兩個代碼可以幫助您完成這項工作，您可以根據需要選擇其中之一。

1. 按 Alt + F11 鍵以啟用 Microsoft Visual Basic for Applications 視窗。

2. 在 Project1 窗格中雙擊 ThisOutlookSession 以打開代碼編輯器，然後複製並將以下代碼粘貼到編輯器中。

VBA：在發送前檢查「收件人」欄位中的地址

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
'UpdatebyExtendoffice20180523
Dim xAddressArr() As Variant
Dim xAddress As String
Dim xRecipient As Recipient
Dim xPrompt As String
Dim xYesNo As Integer
Dim xDictionary As Scripting.Dictionary
On Error Resume Next
Set xDictionary = New Scripting.Dictionary
xAddressArr = Array("example1@126.com", "example2@126.com", "example3@126.com")
For i = LBound(xAddressArr) To UBound(xAddressArr)
    xDictionary.Add xAddressArr(i), True
Next i
For Each xRecipient In Item.Recipients
    If xRecipient.Type = olTo Then
        If xDictionary.Exists(xRecipient.Address) Then xDictionary.Remove xRecipient.Address
    End If
Next
If xDictionary.Count = 0 Then GoTo L1
For i = 0 To xDictionary.Count - 1
    If xAddress = "" Then
        xAddress = xDictionary.Keys(i)
    Else
        xAddress = xAddress + "; " & xDictionary.Keys(i)
    End If
Next i
xPrompt = "You are not sending this to: " & xAddress & ". Are you sure you want to send the Mail?"
xYesNo = MsgBox(xPrompt, vbQuestion + vbYesNo, "Kutools for Outlook")
If xYesNo = vbNo Then Cancel = True
L1:
  Set xRecipient = Nothing
  Set xDictionary = Nothing
End Sub

doc check recipient address before sending 1

在代碼中，您可以將 ("example1@126.com", "example2@126.com", "example3@126.com") 更改為您需要的實際收件人地址。

3. 然後同樣在 Microsoft Visual Basic for Applications 視窗中，點擊工具 > 參考。在 References-Project1 對話框中勾選 Microsoft Scripting Runtime 選項。

doc check recipient address before sending 2

doc check recipient address before sending 3

4. 點擊確定並保存代碼。

現在，如果指定的收件人未出現在發送郵件時的「收件人」欄位中，系統會彈出一個對話框提醒您是否要發送該郵件。
doc check recipient address before sending 4

使用上述代碼，它只檢查「收件人」欄位中的電子郵件地址。如果您想檢查「收件人」、「抄送」和「密件抄送」欄位，可以使用以下代碼。

VBA：在發送前檢查「收件人/抄送/密件抄送」欄位中的地址

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
'UpdatebyExtendoffice20180523
Dim xRecipients As Outlook.Recipients
Dim xRecipient As Outlook.Recipient
Dim xPos As Integer
Dim xYesNo As Integer
Dim xPrompt As String
Dim xAddress As String
On Error Resume Next
If Item.Class <> olMail Then Exit Sub
Set xRecipients = Item.Recipients
xAddress = "example1@gmail.com"
For Each xRecipient In xRecipients
    xPos = InStr(LCase(xRecipient.Address), xAddress)
    If xPos = 0 Then
        xPrompt = "You sending this to " & xAddress & ". Are you sure you want to send it?"
        xYesNo = MsgBox(xPrompt, vbYesNo + vbQuestion + 4096, "Kutools for Outlook")
        If xYesNo = vbNo Then Cancel = True
    End If
Next xRecipient
End Sub

使用此代碼，您不需要勾選 Microsoft Scripting Runtime 選項，只需直接保存代碼即可生效。