33

我正在尝试在 groovy 脚本中使用 javamail 通过 gmail 发送电子邮件。我在网上看了很多地方,但到目前为止一直无法正常工作。运行脚本时出现的错误是:

DEBUG SMTP: useEhlo true, useAuth false
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 25, isSSL false
Caught: javax.mail.SendFailedException: Send failure (javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25 (javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?))

尽管我已经指定它应该使用端口 587,但它似乎正在尝试使用端口 25。有谁知道可能导致此问题的原因,我使用 telnet 连接到端口 587 上的 smtp 服务器,而雷鸟使用具有 STARTTLS 安全性的端口 587,并且能够使用 smtp 服务器成功发送邮件。这告诉我这不是阻塞的端口或连接问题。这是我用来尝试发送电子邮件的代码:

import javax.mail.*
import javax.mail.internet.*

private class SMTPAuthenticator extends Authenticator
{
    public PasswordAuthentication getPasswordAuthentication()
    {
        return new PasswordAuthentication('email@gmail.com', 'password');
    }
}

def  d_email = "email@gmail.com",
        d_password = "password",
        d_host = "smtp.gmail.com",
        d_port  = "587", //465,587
        m_to = "email@gmail.com",
        m_subject = "Testing",
        m_text = "This is a test."

def props = new Properties()
props.put("mail.smtp.user", d_email)
props.put("mail.smtp.host", d_host)
props.put("mail.smtp.port", d_port)
props.put("mail.smtp.starttls.enable","true")
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.auth", "true")
props.put("mail.smtp.socketFactory.port", d_port)
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory")
props.put("mail.smtp.socketFactory.fallback", "false")

def auth = new SMTPAuthenticator()
def session = Session.getInstance(props, auth)
session.setDebug(true);

def msg = new MimeMessage(session)
msg.setText(m_text)
msg.setSubject(m_subject)
msg.setFrom(new InternetAddress(d_email))
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to))
Transport.send(msg)

任何帮助将不胜感激。提前致谢!

-布莱恩

4

3 回答 3

34

在 Java 中,你会做类似的事情:

Transport transport = session.getTransport("smtps");
transport.connect (smtp_host, smtp_port, smtp_username, smtp_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();    

注意“smtpS”协议。此外,现代 JVM 中不再需要 socketFactory 属性,但您可能需要将 Gmail 的“mail.smtps.auth”和“mail.smtps.starttls.enable”设置为“true”。'mail.smtps.debug' 也可能会有所帮助。

于 2010-01-02T04:11:53.693 回答
18

对于任何寻求完整解决方案的人,我根据 maximdim 的回答使用以下代码进行了此操作:

import javax.mail.*
import javax.mail.internet.*

private class SMTPAuthenticator extends Authenticator
{
    public PasswordAuthentication getPasswordAuthentication()
    {
        return new PasswordAuthentication('email@gmail.com', 'test1234');
    }
}

def  d_email = "email@gmail.com",
        d_uname = "email",
        d_password = "password",
        d_host = "smtp.gmail.com",
        d_port  = "465", //465,587
        m_to = "testepscript@gmail.com",
        m_subject = "Testing",
        m_text = "Hey, this is the testing email."

def props = new Properties()
props.put("mail.smtp.user", d_email)
props.put("mail.smtp.host", d_host)
props.put("mail.smtp.port", d_port)
props.put("mail.smtp.starttls.enable","true")
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.auth", "true")
props.put("mail.smtp.socketFactory.port", d_port)
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory")
props.put("mail.smtp.socketFactory.fallback", "false")

def auth = new SMTPAuthenticator()
def session = Session.getInstance(props, auth)
session.setDebug(true);

def msg = new MimeMessage(session)
msg.setText(m_text)
msg.setSubject(m_subject)
msg.setFrom(new InternetAddress(d_email))
msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to))

Transport transport = session.getTransport("smtps");
transport.connect(d_host, 465, d_uname, d_password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
于 2010-01-02T05:12:39.037 回答
5

可能对遇到此问题的其他人有用:在属性上设置端口时:

props.put("mail.smtp.port", smtpPort);

..确保使用字符串对象。使用数字(即 Long)对象将导致该语句看似无效。

于 2015-09-08T20:01:34.357 回答