泄露源IP

[chuyu5762]

今天我在测试Smtp发信的时候；发现了邮件携带了服务器的源IP Received: from onat.cn (unknown [152.136.61.16]) (Authenticated sender: [email protected]) by mail.cwn.cc (Postfix) with ESMTPSA id 2E9A8101A2D for [email protected]; Fri, 6 Jun 2025 16:22:41 +0800 (CST)

Received: from ymmi.cn (unknown [xxxxxx]) (Authenticated sender: [email protected]) by mail.cwn.cc (Postfix) with ESMTPSA id F2E84101ADE for [email protected]; Fri, 6 Jun 2025 15:58:44 +0800 (CST) 这个有隐藏的方法嘛？ 因为我们使用阿里云、腾讯云之类的服务器，本身不带ddos防御；设置了CDN来防御； 我现在的需求是支持隐藏smtp发信会携带服务器源IP。或者是支持的话怎么设置

[dreambladeflag]

Please use SMTP relay.