25端口 转发到 465端口错误
1.由于阿里云禁止25端口发送邮件，我在自己的应用程序中使用465端口进行邮件发送测试成功，部署到阿里云服务器上，报错：连接25端口超时,
Forwarding to error page from request [/testEmail] due to exception [Mail server connection failed; nested exception is com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com, 25; timeout -1;
nested exception is:
java.net.ConnectException: Connection timed out (Connection timed out). Failed messages: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com, 25; timeout -1;
nested exception is:
java.net.ConnectException: Connection timed out (Connection timed out)]
org.springframework.mail.MailSendException: Mail server connection failed; nested exception is com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com, 25; timeout -1;
nested exception is:
java.net.ConnectException: Connection timed out (Connection timed out). Failed messages: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com, 25; timeout -1;
nested exception is:
java.net.ConnectException: Connection timed out (Connection timed out)
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