使用Java验证smtp服务器凭据,而无需实际发送邮件 [英] Validate smtp server credentials using java without actually sending mail
本文介绍了使用Java验证smtp服务器凭据,而无需实际发送邮件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
要验证smtp服务器凭据,我应该使用transport.connect()
吗?
To verify smtp server credentials shall I use transport.connect()
?
Session session = Session.getInstance(properties,authenticator);
Transport tr=session.getTransport("smtp");
tr.connect();
检查smtp服务器凭据是否正确?
Is it correct method to check smtp server credentials?
推荐答案
This question: 'Verify mail server connection programmatically in ColdFusion' has a java solution as part of the accepted answer:
int port = 587;
String host = "smtp.gmail.com";
String user = "username@gmail.com";
String pwd = "email password";
try {
Properties props = new Properties();
// required for gmail
props.put("mail.smtp.starttls.enable","true");
props.put("mail.smtp.auth", "true");
// or use getDefaultInstance instance if desired...
Session session = Session.getInstance(props, null);
Transport transport = session.getTransport("smtp");
transport.connect(host, port, user, pwd);
transport.close();
System.out.println("success");
}
catch(AuthenticationFailedException e) {
System.out.println("AuthenticationFailedException - for authentication failures");
e.printStackTrace();
}
catch(MessagingException e) {
System.out.println("for other failures");
e.printStackTrace();
}
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