更新邮件服务和SMTP配置功能

routes/admin_api/core.py

@@ -1096,6 +1096,18 @@ def set_primary_smtp_config_api(config_id):
         return jsonify({"error": str(e)}), 500
 
 
+@admin_api_bp.route("/smtp/configs/primary/clear", methods=["POST"])
+@admin_required
+def clear_primary_smtp_config_api():
+    """取消主SMTP配置"""
+    try:
+        email_service.clear_primary_smtp_config()
+        return jsonify({"success": True})
+    except Exception as e:
+        logger.error(f"取消主SMTP配置失败: {e}")
+        return jsonify({"error": str(e)}), 500
+
+
 @admin_api_bp.route("/email/stats", methods=["GET"])
 @admin_required
 def get_email_stats_api():