如何自动移除Exchange外部邮件正文中的红色钓鱼警示

Hey, I feel your pain—those mandatory external email warnings can be super intrusive when you get mostly outside messages, and having to manually strip them before forwarding is a total hassle. Since your admin isn't budging, here are a few practical ways to auto-remove that red bold warning without needing their approval:

方法1：Outlook规则 + VBA脚本（最推荐，内置无额外工具） #

This is the most reliable auto-solution using Outlook's built-in tools. It uses a rule to trigger a VBA script that cleans the warning from incoming emails automatically.

Step-by-Step Setup: #

1. Open Outlook and press Alt + F11 to launch the VBA Editor.
2. Double-click ThisOutlookSession in the left pane, then paste the following script. Make sure to replace the warningText value with your actual warning content (including any HTML formatting if it's styled red/bold):

Sub RemoveExternalWarning(Item As Outlook.MailItem)
    ' Replace this with your actual warning text/HTML
    Dim warningText As String
    warningText = "<p style=""color:red;font-weight:bold;"">⚠️ 此邮件来自外部，请注意防范钓鱼攻击</p>"
    
    ' Clean HTML-formatted emails
    If Item.BodyFormat = olFormatHTML Then
        Item.HTMLBody = Replace(Item.HTMLBody, warningText, "")
    End If
    
    ' Clean plain-text emails
    If Item.BodyFormat = olFormatPlain Then
        ' If the plain-text version has a different warning string, update this line
        Item.Body = Replace(Item.Body, "⚠️ 此邮件来自外部，请注意防范钓鱼攻击", "")
    End If
    
    ' Save the changes to the email
    Item.Save
End Sub

3. Go back to Outlook and create a new rule:
   • Start with "Apply rule on messages I receive"
   • Check the box for "from people or public group" → then select external senders (or use "sent only to me" if you want to target all incoming)
   • Next, check "run a script" and select the RemoveExternalWarning script you just created
   • Finish the rule setup—now incoming emails will auto-strip the warning!

方法2：Outlook快速步骤（便捷手动方案） #

If you don't want to mess with scripts, Quick Steps let you strip the warning in one click (almost as good as auto):

• Click the Quick Steps button in Outlook's ribbon → select "New Quick Step"
• Name it something like "移除外部警示"
• Add the action "编辑邮件", then in the edit box, delete the warning text and save the step
• Now whenever you need to forward/reply, just click this Quick Step to clean the email instantly

方法3：第三方邮件客户端过滤（如Thunderbird） #

If you're open to switching clients, Thunderbird has built-in content replacement rules:

• Open Thunderbird → go to 设置 → 消息过滤
• Create a new filter: set the condition to "来自外部域" (或所有收件邮件)
• Add an action: "替换正文中的文本" → 输入警示文本作为搜索词，替换内容留空
• 保存过滤规则后，Thunderbird会自动清理 incoming 邮件中的警示内容

内容的提问来源于stack exchange，提问作者tawm