SpringBoot-配置发送邮件遇到的一些问题

前言:前一天调用163邮箱发送邮件还么有问题,今天再调用就各种发送不成功,害的我都关闭授权,还花了一毛钱短信费重新开启授权,最后百度到了一篇文章,非常贴切,在此转载下。

本人遇到的错误代码是554,邮件主题和内容有敏感词汇(您的验证码是),或者被当作垃圾邮件,修改了一下主题和内容就OK了。

 

使用springboot向163邮箱发送邮件遇到一些问题,主要归为如下几点:

1.连接smtp.163.com异常,报错:java.net.UnknownHostException: smtp.163.com
2.用户权限不足,报错:javax.mail.AuthenticationFailedException: 550 User has no permission
3.认证错误,报错:javax.mail.AuthenticationFailedException: 535 Error: authentication failed
4.发送内容错误,报错:com.sun.mail.smtp.SMTPSendFailedException: 554 DT:SPM
5.发送附件错误,报错:javax.mail.MessagingException: Empty multipart: multipart/related; 
6.发送静态图片资源,查看邮件,图片显示不出来


问题1:

详细报错如下:

org.springframework.mail.MailSendException: Mail server connection failed; nested exception is 
 
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com , 25; timeout 
-1;
  nested exception is:
    java.net.UnknownHostException: smtp.163.com . Failed messages: 
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com , 25; timeout 
 
-1;
  nested exception is:
    java.net.UnknownHostException: smtp.163.com ; message exception details (1) are:
Failed message 1:
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.163.com , 25; timeout 
 
-1;
  nested exception is:
    java.net.UnknownHostException: smtp.163.com 
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2118)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:712)
    at javax.mail.Service.connect(Service.java:366)
    at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport
 
(JavaMailSenderImpl.java:501)
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:421)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:345)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:340)
    at mail.service.MailSendService.sendInlineMail(MailSendService.java:111)

 

解决思路:
1.进行telnet检查,查看telent smtp.163.com 25,发现可以正常telent成功,说明网络没问题
2.查看配置是否正常,经查看,发现springboot的application.properties文件中spring.mail.host=smtp.163.com后面有空格,去掉空格即可

 

问题2:

详细报错如下:

org.springframework.mail.MailAuthenticationException: Authentication failed; nested exception is

javax.mail.AuthenticationFailedException: 550 User has no permission

  at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:424)
  at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:345)
  at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:340)
  at mail.service.MailSendService.sendInlineMail(MailSendService.java:111)
  at mail.test.TestMail.test(TestMail.java:43)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  at java.lang.reflect.Method.invoke(Unknown Source)
  at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
  at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
  at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
  at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)


解决思路:
1.在cn.bing.com上搜索,发现有该问题的先例,问题原因是没有开启163邮箱的pop3/smtp协议
  参考文档:http://www.cnblogs.com/cosyer/p/6676023.html
2.登录163邮箱->设置->POP3/SMTP/IMAP设置->开启协议,正确设置授权码

 

问题3:

详细报错如下:

javax.mail.AuthenticationFailedException: 535 Error: authentication failed
 
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:424)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:345)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:340)
    at mail.service.MailSendService.sendInlineMail(MailSendService.java:111)
    at mail.test.TestMail.test(TestMail.java:43)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

 


解决思路:
1.163邮箱开通smtp服务后,javaMail发送邮箱要使用授权码作为登录密码
2.设置spring.mail.password=授权码

 

问题4:

详细报错如下:

org.springframework.mail.MailSendException: Failed messages: 
 
com.sun.mail.smtp.SMTPSendFailedException: 554 DT:SPM 163 smtp11,D8CowACX7CmSHB5b3SrlCA--.26635S3 
 
1528700051,please see http://mail.163.com/help/help_spam_16.htm?
 
ip=182.138.102.204&hostid=smtp11&time=1528700051
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:474) 
 
~[spring-context-support-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:307) 
 
~[spring-context-support-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:296) 
 
~[spring-context-support-4.3.13.RELEASE.jar:4.3.13.RELEASE]
    at mail.service.MailSendService.sendSimpleMail(MailSendService.java:50) ~[classes/:na]
    at mail.test.TestMail.test(TestMail.java:36) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_80]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.7.0_80]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.7.0_80]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.7.0_80]
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) 
 
[junit-4.12.jar:4.12]
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
 
[junit-4.12.jar:4.12]
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 
 
[junit-4.12.jar:4.12]
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 


解决思路:
1.根据错误提示,查看如下url:
http://mail.163.com/help/help_spam_16.htmip=182.138.102.204&hostid=smtp11&time=1528700051
 这是163邮箱提供的一个错误码对应表
2.554 DT:SPM对应错误为:
 发送的邮件内容包含了未被许可的信息,或被系统识别为垃圾邮件。请检查是否有用户发送病毒或者垃圾邮件
3.修改邮件的主题及内容,使用合法信息,例如不要使用:test、测试这些信息

 

问题5:

详细报错如下:

Caused by: javax.mail.MessagingException: Empty multipart: multipart/related; 
    boundary="----=_Part_2_1115361411.1528698722005"
    at javax.mail.internet.MimeMultipart.writeTo(MimeMultipart.java:548)
    at com.sun.mail.handlers.multipart_mixed.writeTo(multipart_mixed.java:81)
    ... 45 more

... 45 more
解决思路:
1.在cn.bing.com上搜索,问题原因是没有设置邮件内容,导致报该错误,其实和发送附件没有任何关系
参考文章:https://stackoverflow.com/questions/32306928/sending-emails-with-attachments-empty-
multipart

 

问题6:
无报错信息

解决思路:

1.检查代码,具体代码如下:

public boolean sendInlineMail(String fromPos, String toPos, String subject, FileSystemResource file)
{
    MimeMessage msg = mailSender.createMimeMessage();
    try
    {
        //MimeMessageHelper构造器,如果要发送附件邮件,必须指定multipart参数为true
        MimeMessageHelper helper  = new MimeMessageHelper(msg, true);
        helper.setFrom(fromPos);
        helper.setTo(toPos);
        helper.setSubject(subject);
        helper.setText("静态资源:", true);
        helper.addInline("pic", file);
        mailSender.send(msg);
    } 
    catch (MessagingException e)
    {
        logger.error("发送附件邮件失败.", e);
        return false;
    }
    
    return true;
}

 


2.对代码进行了调整:将addInline方法要放在setText后面,进行测试发现正常了,可能原因是顺序如果不对,导致资源没有被正确引用。

 

原文链接:遵循 CC 4.0 BY-SA 版权协议,https://blog.csdn.net/ignorewho/article/details/80654201

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