diff --git a/config/default.json b/config/default.json
index 09d0cf4..621bc6d 100644
--- a/config/default.json
+++ b/config/default.json
@@ -1,5 +1,6 @@
 {
   "outgoing server": "smtp.gmail.com",
+  "smtp_port": 587,
   "email user": "jz7606@gmail.com",
   "email password": "nxcd ugnt dujo hemx"
 }
diff --git a/send_email_module.py b/send_email_module.py
index 3037dcf..1962ffc 100644
--- a/send_email_module.py
+++ b/send_email_module.py
@@ -56,6 +56,25 @@ def xor_encode(src: str, key: int) -> str:
     """把邮箱做异或后返回 16 进制字符串"""
     return "".join(f"{ord(c) ^ key:02x}" for c in src)
 
+# ---------- 读取 port 并建立连接 ----------  ✨ new
+def connect_smtp(host: str, config: dict):
+    """
+    优先按 config["smtp_port"] 建联：
+        • 465 ➜ 直接 SSL
+        • 其它端口 ➜ 先连再 starttls()
+    若没写端口 ➜ 回退 detect_smtp_port() 的 465→587 自动探测
+    """
+    fixed_port = int(config.get("smtp_port", 0))   # 没写就 0
+    if fixed_port:
+        if fixed_port == 465:
+            return smtplib.SMTP_SSL(host, 465, timeout=20)
+        s = smtplib.SMTP(host, fixed_port, timeout=20)
+        s.starttls(context=ssl.create_default_context())
+        return s
+    # 没配端口 → 用原自动探测
+    return detect_smtp_port(host)
+
+
 
 # ---------- send_email 主函数 ----------
 def send_email(key, to_address, subject, body_template, recipient_name,
@@ -103,8 +122,9 @@ def send_email(key, to_address, subject, body_template, recipient_name,
 
         # --- 发送尝试 ---
         MAX_RETRIES, RETRY_DELAY = 6, 600  # 最多 1 小时
+        host = config['outgoing server'].strip()           # ✨ new（放在循环前也行）
         for attempt in range(MAX_RETRIES):
-            server = detect_smtp_port(config['outgoing server'].strip())
+            server = connect_smtp(host, config)  
             if server is None:
                 result.update(status="fail", message="无法连接到任何 SMTP 端口")
                 return result