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JavaMail - javax.mail.MessagingException

[英]JavaMail - javax.mail.MessagingException

我正在嘗試編寫一個簡單的郵件發件人類,它將接收一堆參數,並使用這些參數將使用我們的Exchange 2010服務器發送電子郵件。 雖然身份驗證等似乎工作正常,但當代碼實際上嘗試發送電子郵件時,我得到以下異常(我認為)。 我已確保身份驗證正在運行,我從會話中獲取傳輸,但仍然失敗。 任何人都可以對我做錯了什么或丟失了嗎? 謝謝。

例外:

javax.mail.MessagingException: [EOF]
       at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1481)
       at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1512)
       at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1054)
       at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:634)
       at javax.mail.Transport.send0(Transport.java:189)
       at javax.mail.Transport.send(Transport.java:140)
       at com.ri.common.mail.util.MailSender.sendHTMLEmail(MailSender.java:75)
       at com.ri.common.mail.util.MailSender.main(MailSender.java:106)

相關代碼:

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;


public class MailSender
{
    public static void sendHTMLEmail( String fromEmailId, String toEmailId, String host, String hostUserName,
            String hostPassword, String mailSubject, String mailBody )
    {
        // Get system properties.
        Properties props = System.getProperties();
        // Setup mail server
        props.put( "mail.transport.protocol", "smtp" );
        props.put( "mail.smtp.host", host );
        props.put( "mail.smtp.auth", "true" );

        final String hostUName = hostUserName;
        final String hPassword = hostPassword;

        Authenticator authenticator = new Authenticator()
        {
            protected PasswordAuthentication getPasswordAuthentication()
            {
                return new PasswordAuthentication( hostUName, hPassword );
            }
        };

        // Get the default Session object.
        Session session = Session.getDefaultInstance( props, authenticator );

        try
        {
            // Create a default MimeMessage object.
            MimeMessage message = new MimeMessage( session );

            // Set From: header field of the header.
            message.setFrom( new InternetAddress( fromEmailId ) );

            // Set To: header field of the header.
            message.addRecipient( Message.RecipientType.TO, new InternetAddress( toEmailId ) );

            // Set Subject: header field
            message.setSubject( mailSubject );

            // Send the actual HTML message, as big as you like
            message.setContent( mailBody, "text/html" );

            // Send message
            Transport.send( message, message.getAllRecipients() );
            System.out.println( "Sent message successfully...." );
        }
        catch( Exception mex )
        {
            mex.printStackTrace();
        }

    }

    public static void main( String[] args )
    {

        String to = "someCorrectEmailID@xyz.com";
        String from = "someCorrectEmailID@xyz.com";
        String host = "correctHostForExch2010";
        String user = "correctUser";
        String password = "CorrectPassword";
        String subject = "Test Email";
        String body = "Hi there. This is a test email!";

        MailSender.sendHTMLEmail( from, to, host, user, password, subject, body );
    }
}

編輯:我打開調試,它說

MAIL FROM:<someCorrectEmailID@xyz.com> 530 5.7.1 Client was not authenticated 
DEBUG SMTP: got response code 530, with response: 530 5.7.1 Client was not authenticated. 

當會話認證成功時,為什么會這樣?

謝謝亞歷克斯和比爾。 我通過啟用以下屬性來實現它。

props.put("mail.smtp.starttls.enable", "true");

兩種可能性:

  1. 由於您使用了Session.getDefaultInstance,它實際上並沒有嘗試進行身份驗證。
  2. 它沒有進行身份驗證,因為它沒有找到客戶端和服務器都支持的任何身份驗證機制,可能是因為服務器希望您在發送任何身份驗證信息之前使用SSL。 嘗試將“mail.smtp.starttls.enable”設置為“true”。

如果我們能看到更多的調試輸出,我們可以告訴你哪一個是這種情況。

我也有這個錯誤跟蹤我的更正是:

對於OS centos7:轉到vi / etc / hosts並驗證IP地址是否正確

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