阿里云服务器部署项目邮箱发送功能465端口报错

报错信息：Request processing failed; nested exception is org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: smtp.qq.com, port: 465;

往下看，找到根本原因：

javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)

在网上找了半天没找到解决方法，后来在Stack Overflow上找到了答案。

原来是jre版本大于1.8.0_181之后在 jre/lib/security/下的java.security文件中有这样几行代码

 注释掉前两行，重启服务器，即可解决拒绝安全连接问题

记得esc :wq

 成功！

 这里附上stack overflow的原文链接：java - SSLHandShakeException No Appropriate Protocol - Stack Overflowhttps://stackoverflow.com/questions/38205947/sslhandshakeexception-no-appropriate-protocol