同样的邮件配置，我在typecho的joe上使用是可以发送邮件的，大佬们帮忙看看啥原因
Caused by: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.qq.com, 465; timeout -1;
nested exception is:
java.net.UnknownHostException: smtp.qq.com
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2210)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:722)
at javax.mail.Service.connect(Service.java:342)
at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:518)
at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:437)
... 7 more
Caused by: java.net.UnknownHostException: smtp.qq.com
at java.base/java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:335)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:214)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2160)
... 11 more
