使用 Javamail 发送电子邮件时出错：com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 @ 发件人被拒绝

Question

我正在尝试通过 Javamail 以编程方式向一组收件人发送电子邮件。我设置了一个 MimeMessagePreparator 并将其传递给 JavaMailSenderImpl，但是在发送电子邮件时我得到以下信息：

org.springframework.mail.MailSendException: Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 550 5.1.0 <mycomputer!!> sender rejected

所以，发件人看起来像我的电脑。

这是我的代码：

public class EmailNotifier {

    private JavaMailSenderImpl mailSender;
    @Value("${application.mail.sender.address}")
    private String senderEmail;
    @Value("${application.mail.subject}")
    private String emailSubject;
    @Value("${application.mail.sender.address}")
    private String senderAddress;
    @Value("${application.mail.sender.password}")
    private String senderPassword;
    @Value("${application.mail.server.outgoing.port}")
    private int outgoingPort;
    @Value("${application.mail.server.outgoing}")
    private String outgoingServer;
    @Value("${application.mail.content}")
    private String contentTemplate;
    private static String BODY_CONTENT_TYPE = "text/html; charset=utf-8";
    private static String PDF_CONTENT_TYPE = "application/pdf";

    @PostConstruct
    public void init() {
        mailSender = new JavaMailSenderImpl();
        mailSender.setPassword(senderPassword);
        mailSender.setUsername(senderAddress);
        mailSender.setPort(outgoingPort);
        mailSender.setHost(outgoingServer);
    }

    public void sendEmail(InputStream pdfInputStream, String aRecipient) throws MessagingException {

        final String commaSeparatedRecipientsEmail = getRecipients();

        String content = contentTemplate;
        MimeMessagePreparator msgPreparator = new MimeMessagePreparator() {

            public void prepare(MimeMessage msg) throws Exception {
                msg.addRecipients(Message.RecipientType.TO, emailsAgenzia);
                msg.setSubject(emailSubject.replace(emailSubject);
                MimeBodyPart bodyPart = new MimeBodyPart();
                bodyPart.setContent(content, BODY_CONTENT_TYPE);

                MimeBodyPart attachmentPart = new MimeBodyPart();

                ByteArrayDataSource pdf = new ByteArrayDataSource(pdfInputStream, PDF_CONTENT_TYPE);

                attachmentPart.setDataHandler(new DataHandler(pdf));
                String fileName = getFilename();
                attachmentPart.setFileName(fileName);

                Multipart multipart = new MimeMultipart();
                multipart.addBodyPart(bodyPart);
                multipart.addBodyPart(attachmentPart);
                msg.setContent(multipart);
            }
        };

        this.mailSender.send(msgPreparator);
    }
}

怎么了？

Answer 1

这是一个 DNS 问题。您必须在 DNS 系统中插入您的发件人地址。

https://digitaltoolfactory.net/blog/2010/03/how-to-fix-the-550-5-1-0-address-rejected-email-problem/

或者邮件地址无效。

Answer 2

我最终不得不放弃 JavaMailSenderImpl 并使用较低级别的 API（Javamail 基本类而不是 Spring 类）。

使用 Javamail 发送电子邮件时出错：com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 @ 发件人被拒绝

Error sendin email with Javamail: com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 @ sender rejected

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jakarta-mail

使用 Javamail 发送电子邮件时出错：com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 *@* 发件人被拒绝

Error sendin email with Javamail: com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 *@* sender rejected

java

jakarta-mail

使用 Javamail 发送电子邮件时出错：com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 @ 发件人被拒绝

Error sendin email with Javamail: com.sun.mail.smtp.SMTPSenderFailedException: 550 5.1.0 @ sender rejected