Java，无法在linux上发送邮件
Java，无法在linux上发送邮件
提问于 2018-07-30 03:38:05
使用我的家用计算机，我可以通过Gmail发送电子邮件而不会出错，然而，当我尝试在我的Linux机器上运行相同的代码时，它抛出：
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2182)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:726)
at javax.mail.Service.connect(Service.java:388)
at javax.mail.Service.connect(Service.java:246)
at javax.mail.Service.connect(Service.java:195)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
at io.paratek.updates.util.Mail.sendMail(Mail.java:34)
at io.paratek.updates.MailTest.main(MailTest.java:8)我的代码
public class Mail {
public static void sendMail(String subject, String contents, String to) {
Properties props = System.getProperties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");
Session session = Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("myemail", "mypasswd");
}
});
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(to));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject(subject);
message.setText(contents);
Transport.send(message);
System.out.println("Sent message successfully....");
} catch (MessagingException mex) {
mex.printStackTrace();
}
}
}我在两个系统上都使用Oracle JDK 181。我可以在Linux机器上成功连接"telnet smtp.gmail.com 465“。
回答 1
Stack Overflow用户
发布于 2018-07-30 08:48:13
切换到TLS后，它可以正常工作
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");页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51583902
复制相关文章
相似问题