javax 无法将套接字转换为 TLS；

Question

我在使用 Javax 发送邮件时遇到问题。我们使用 gmail 大约 4 年从我们的 Java 软件发送邮件。现在我收到以下错误：

Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Could not convert socket to TLS;
  nested exception is:
    javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
    at SendEmail.sendMissingMailWeek(SendEmail.java:233)
    at main.negVerkaeufeMailenWeek(main.java:368)
    at main.main(main.java:79)
Caused by: javax.mail.MessagingException: Could not convert socket to TLS;
  nested exception is:
    javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
    at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1907)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:666)
    at javax.mail.Service.connect(Service.java:317)
    at javax.mail.Service.connect(Service.java:176)
    at javax.mail.Service.connect(Service.java:125)
    at javax.mail.Transport.send0(Transport.java:194)
    at javax.mail.Transport.send(Transport.java:124)
    at SendEmail.sendMissingMailWeek(SendEmail.java:226)
    ... 2 more
Caused by: javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
    at sun.security.ssl.HandshakeContext.<init>(HandshakeContext.java:171)
    at sun.security.ssl.ClientHandshakeContext.<init>(ClientHandshakeContext.java:98)
    at sun.security.ssl.TransportContext.kickstart(TransportContext.java:220)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:428)
    at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:549)
    at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:486)
    at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1902)
    ... 9 more

Process finished with exit code 1

这些是我的 gmail 设置：

            props.put("mail.smtp.auth", "true");
            props.put("mail.smtp.starttls.enable", "true");
            props.put("mail.smtp.host", "smtp.gmail.com");
            props.put("mail.smtp.port", "587");
            props.put("mail.smtp.ssl.trust", "smtp.gmail.com");
            props.put("mail.smtp.debug", "true");

我也尝试过其他邮件服务器（O365、Strato），但遇到了同样的错误。