Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated

我在springboot项目中执行发送邮件的方法时报错如下：

org.springframework.mail.MailSendException: Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated
; message exception details (1) are:
Failed message 1:
com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated

	at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)
	at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)
	at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:464)
	at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:322)
	at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:311)
	at com.hotwind.hwstore.service.schedule.impl.Sync4MockImpl.sendMail(Sync4MockImpl.java:75)
	at com.hotwind.hwstore.service.schedule.impl.Sync4MockImpl.doWork(Sync4MockImpl.java:51)
	at com.hotwind.hwstore.service.schedule.ScheduleService.syncPutAllStore4Moka(ScheduleService.java:40)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

我也参考了不少链接都没有解决，后来我分析“Client was not authenticated”这句话说的是没有通过身份验证，然后我在配置中添加了：spring.mail.properties.mail.smtp.auth=true这句话就解决了。

以下是我的项目代码，实现简单的邮件发送：
在pom.xml文件添加依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-mail</artifactId>
</dependency>

application.properties中添加配置：

spring.mail.host=10.0.16.7
spring.mail.port=25
spring.mail.username=xxxxx@xx.net
spring.mail.password=xxx
spring.mail.default-encoding=UTF-8
spring.mail.properties.mail.smtp.auth=true

发送邮件的方法：

public void sendMail(String str) {
    try {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom("xxxxx@xx.net");
        message.setTo(收件人的邮箱);
        message.setCc(抄送人的邮箱);
        message.setSubject(邮件主题);
        message.setText(邮件内容);
        javaMailSender.send(message);
    } catch (Exception e) {
        e.printStackTrace();
    }
}