如何在发送邮件时自动删除主题行中的某些特殊字符？

Author: Xiaoyang Last Modified: 2025-07-31

在Outlook中发送邮件时，您可能在主题行输入主题时不小心插入了一些特殊字符，因此需要逐个删除这些特殊字符。在本文中，我将讨论如何在发送邮件时自动删除主题中的所有这些特殊字符。

使用VBA代码在发送邮件时自动删除主题行中的所有特殊字符

在发送邮件时自动删除主题行中的特殊字符，以下VBA代码可以帮到您。请按照以下步骤操作：

1. 按住ALT + F11键打开Microsoft Visual Basic for Applications窗口。

2. 在Microsoft Visual Basic for Applications窗口中，双击 Project1(VbaProject.OTM)窗格中的ThisOutlookSession以打开模块，然后将以下代码复制并粘贴到空白模块中。

VBA代码：自动删除主题行中的特殊字符

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
    Dim xMailItem As Outlook.MailItem
    Dim xRegExp As RegExp
    Dim xSubject As String
    On Error Resume Next
    If Item.Class <> olMail Then Exit Sub
    Set xMailItem = Item
    xSubject = xMailItem.Subject
    Set xRegExp = CreateObject("VBScript.RegExp")
    With xRegExp
        .Global = True
        .IgnoreCase = True
        .Pattern = "[^a-zA-Z0-9\u4e00-\u9fa5]"
    End With
    If xRegExp.test(xSubject) = False Then Exit Sub
    xSubject = xRegExp.Replace(xSubject, "-")
    xMailItem.Subject = GetTargetStr(xSubject)
    Set RegExp = Nothing
End Sub
Function GetTargetStr(Str As String)
    Dim xS, xStr As String
    Dim i As Integer
    Dim xIsFirst As Boolean
    xIsFirst = True
    xStr = ""
    For i = 1 To Len(Str)
        xS = Mid(Str, i, 1)
        If xS = "-" Then
            If xIsFirst Then
                xS = " "
                xIsFirst = False
            Else
                xS = ""
            End If
        Else
            xIsFirst = True
        End If
        xStr = xStr + xS
    Next i
    GetTargetStr = xStr
End Function

3. 然后，仍然在 Microsoft Visual Basic for Applications窗口中，点击工具 > 引用以打开References-Project1对话框，并从可用引用列表框中勾选Microsoft VBAScript Regular Expressions 1.0选项，见截图：