从Java应用程序发送电子邮件中的异常：中继被拒绝

Question

我们正在使用Spring
Mail从Java应用程序org.springframework.mail.javamail.JavaMailSenderImpl发送电子邮件

春季电子邮件配置现为

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl" autowire-candidate="default">
        <property name="host" value="${test.email.host}" />
        <property name="port" value="${test.email.port}" />
        <property name="username" value="${test.email.username}" />
        <property name="password" value="${test.email.password}" />
        <property name="javaMailProperties">
            <props>
                <prop key="mail.smtp.auth">true</prop>

            </props>
        </property>
    </bean>

Java代码快照为

    @Autowired(required = true)
    @Qualifier("errorMessageMailSender")
    JavaMailSenderImpl mailSender;

    ..............
    ..............

          try {
                MimeMessage mailMessage = buildEmailMimeMessage(properties,mimeMultipart);
                logger.info(String.format("Built MimeMessage object is <%s>",mailMessage));
                if (mailMessage != null) {
                    mailSender.send(mailMessage);
                    logger.info("Mail sent Successfully");
                }else{
                    logger.info("Mail send failed as Mail message object construction failed.");
                }
                result=true;
            } catch (Exception e) {
                logger.error("An exception occurred while sending mail :: " + e.getMessage());
            }

属性文件

test.email.host=mail.mydomain.net
test.email.port=2525
test.email.username=[e-mail]
test.email.password=mypassword

但是我们处于例外之下，并且没有发送电子邮件

An exception occurred while sending mail :: Failed messages: javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
    com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 <[e-mail]>... Relaying denied

Answer 1

您尝试向其发送邮件的smtp服务器拒绝中继。如果这不是您自己的本地服务器，则可以更改配置以中继来自mydomain.net的邮件。但是，如果它是外部服务器（例如gmail），则必须使用真正的注册域。

要针对邮件服务器测试代码，建议您设置经过dockerized处理的Apache James Server，在其上创建一些测试用户，以及发送和接收电子邮件。