从java应用程序发送电子邮件时出现异常：拒绝中继 [英] Exception in sending emails from java application : Relaying denied
问题描述
我们正在使用Spring Mail从java应用程序发送电子邮件
org.springframework.mail.javamail.JavaMailSenderImpl
We are using Spring Mail to send emails from java application org.springframework.mail.javamail.JavaMailSenderImpl
Spring Email Configuration
Spring Email Configuration is
<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
@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());
}
物业档案
test.email.host=mail.mydomain.net
test.email.port=2525
test.email.username=demo@mydomain.net
test.email.password=mypassword
但我们低于例外，并且未发送电子邮件
But we are below exception, and email is not being sent
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 <demo@mydomain.net>... Relaying denied
推荐答案
您尝试发送邮件的smtp服务器拒绝中继。如果您自己的本地服务器不是问题，您可以更改配置以从mydomain.net中继邮件。但如果它是外部服务器（例如gmail），则必须使用真正的注册域。
The smtp server that you are trying to send the mail to is rejecting to relay. If it is your own local server that is not a problem, you may change configurations to relay mails from your mydomain.net . But if it is an external server (gmail for example), you have to use a real registered domain.
要针对邮件服务器测试代码，我建议你设置一个dockerized Apache James Server，在其上创建一些测试用户并发送和接收电子邮件。
To test your code against a mail server, I recommend you to setup a dockerized Apache James Server, create some test users on it and send and receive emails.
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