之前测试能发送邮件的，今天又试了一下出问题了。。。。不知道什么原因，求大神
DEBUG: setDebug: JavaMail version 1.4.1
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.qq.com", port 25, isSSL false
220 smtp.qq.com Esmtp QQ Mail Server
DEBUG SMTP: connected to host "smtp.qq.com", port: 25
EHLO ZKCRJB84CNJ0ZTJ
250-smtp.qq.com
250-PIPELINING
250-SIZE 73400320
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN
250-MAILCOMPRESS
250 8BITMIME
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "SIZE", arg "73400320"
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN"
DEBUG SMTP: Found extension "AUTH=LOGIN", arg ""
DEBUG SMTP: Found extension "MAILCOMPRESS", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Attempt to authenticate
AUTH LOGIN
334 VXNlcm5hbWU6
MTYwMjM2NjYyOEBxcS5jb20=
530 Error: A secure connection is requiered(such as ssl). More information at http://service.mail.qq.com/cgi-bin/help?id=28
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prop.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
prop.setProperty("mail.smtp.socketFactory.fallback", "false");
prop.setProperty("mail.smtp.port", "465");
prop.setProperty("mail.smtp.socketFactory.port", "465");你好，我是AI助理
可以解答问题、推荐解决方案等
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