WordPress 网站smtp 不能发信

为了能快速了解并处理您的问题，请提供以下基础信息：

面板、插件版本：8.0.2

系统版本：CentOS 7.8.2003 x86_64(Py3.7.9) 阿里云ecs

问题描述：WordPress 网站用163邮箱 smtp 不能发信，但是用阿里云企业邮可以正常发信

相关截图（日志、错误）：OpenSSL 1.1.1a  20 Nov 2018

Misconfigured server certificate.
This means OpenSSL on your server isn't able to verify the host certificate.

There are a few reasons why this is happening. It could be that the host certificate is misconfigured, or this server's OpenSSL is using an outdated CA bundle.

Recommended next steps:
Verify that the host's SSL certificate is valid.
Contact your hosting support, show them the "full Error Log for debugging" below and share this link with them.