diff --git a/Offensive.md b/Offensive.md
index d78dd5d..e8b4559 100644
--- a/Offensive.md
+++ b/Offensive.md
@@ -1204,6 +1204,10 @@ Some tools can be categorized in more than one category. But because the current
         <td><b>Link</b></td>
         <td><b>Description</b></td>
     </tr>
+    <tr>
+        <td><a href="https://github.com/cisp/GetMail">cisp/GetMail</a></td>
+        <td>利用NTLM Hash读取Exchange邮件</td>
+    </tr>
     <tr>
         <td><a href="https://github.com/djhohnstein/SharpChromium">djhohnstein/SharpChromium</a></td>
         <td>.NET 4.0 CLR Project to retrieve Chromium data, such as cookies, history and saved logins.</td>