使用Commons-Email向Gmail发送电子邮件

Email email = new SimpleEmail(); String authuser = "[e-mail]"; String authpwd = "*******"; // Very Important, Don't use email.setAuthentication() email.setSmtpPort(465); email.setAuthenticator(new DefaultAuthenticator(authuser, authpwd)); email.setDebug(true); // true if you want to debug email.setHostName("smtp.gmail.com"); email.getMailSession().getProperties().put("mail.smtp.auth", "true"); email.getMailSession().getProperties().put("mail.debug", "true"); email.getMailSession().getProperties().put("mail.smtp.port", "465"); email.getMailSession().getProperties().put("mail.smtp.socketFactory.port", "465"); email.getMailSession().getProperties().put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); email.getMailSession().getProperties().put("mail.smtp.socketFactory.fallback", "false"); email.getMailSession().getProperties().put("mail.smtp.starttls.enable", "true"); email.setFrom("[e-mail]", "SenderName"); email.setSubject("TestMail"); email.setMsg("This is a test mail?"); email.addTo("[e-mail]", "ToName"); email.send(); 

它给出了以下例外

 SEVERE: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.gmail.com:465 

Answer 1

Commons Email用户指南中有一个使用SSL的Gmail示例。

https://commons.apache.org/proper/commons-email/userguide.html

SSL / TLS（端口465） – > email.setSSLOnConnect（true）;

 Email email = new SimpleEmail(); email.setHostName("smtp.gmail.com"); email.setSmtpPort(465); email.setAuthenticator(new DefaultAuthenticator("username", "password")); email.setSSLOnConnect(true); email.setFrom("[e-mail]"); email.setSubject("TestMail"); email.setMsg("This is a test mail ... :-)"); email.addTo("[e-mail]"); email.send(); 

STARTTLS（端口587） – > email.setStartTLSEnabled（true）;

 Email email = new SimpleEmail(); email.setHostName("smtp.gmail.com"); email.setSmtpPort(587); email.setAuthenticator(new DefaultAuthenticator("username", "password")); email.setStartTLSEnabled(true); email.setFrom("[e-mail]"); email.setSubject("TestMail"); email.setMsg("This is a test mail ... :-)"); email.addTo("[e-mail]"); email.send(); 

Answer 2

这对我有用

 Email email = new SimpleEmail(); String authuser = "[e-mail]"; String authpwd = "xxxx"; email.setSmtpPort(587); email.setAuthenticator(new DefaultAuthenticator(authuser, authpwd)); email.setDebug(true); email.setHostName("smtp.gmail.com"); email.getMailSession().getProperties().put("mail.smtps.auth", "true"); email.getMailSession().getProperties().put("mail.debug", "true"); email.getMailSession().getProperties().put("mail.smtps.port", "587"); email.getMailSession().getProperties().put("mail.smtps.socketFactory.port", "587"); email.getMailSession().getProperties().put("mail.smtps.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); email.getMailSession().getProperties().put("mail.smtps.socketFactory.fallback", "false"); email.getMailSession().getProperties().put("mail.smtp.starttls.enable", "true"); email.setFrom("[e-mail]", "SenderName"); email.setSubject("TestMail"); email.setMsg("This is a test mail?"); email.addTo("[e-mail]", "ToName"); email.setTLS(true); email.send(); 

Answer 3

您是否需要告诉Commons Email您发送的是TLS电子邮件 ：

 email.setTLS(true); 

在你打电话给email.send（）之前？

我不确定这是否会解决你的问题，因为我不确定你是否遇到连接到smtp.gmail.com:465或成功发送到它的问题（错误消息/exception是不明确的，因为你已经提出了它，但它绝对是我所知道的东西。