org.flowable.engine.common.api.FlowableException: Could not send e-mail in execution.Flowable发邮件，近期研究了一下flowable发邮件的功能，在这里分享一下flowable邮件任务容易出错的地方。

    使用Flowable发邮件的功能，则发件人的邮箱必须开启POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV这些服务，当然了最终的是开启POP3/SMT服务，如果没有开启，则报错信息如下：

org.flowable.engine.common.api.FlowableException: Could not send e-mail in execution 7503
	at org.flowable.engine.impl.bpmn.behavior.MailActivityBehavior.handleException(MailActivityBehavior.java:406)
	at org.flowable.engine.impl.bpmn.behavior.MailActivityBehavior.execute(MailActivityBehavior.java:102)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeActivityBehavior(ContinueProcessOperation.java:233)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.executeSynchronous(ContinueProcessOperation.java:153)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughFlowNode(ContinueProcessOperation.java:110)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.continueThroughSequenceFlow(ContinueProcessOperation.java:280)
	at org.flowable.engine.impl.agenda.ContinueProcessOperation.run(ContinueProcessOperation.java:76)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:86)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:70)
	at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:54)
	at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
	at org.flowable.engine.common.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:50)
	at org.flowable.engine.common.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:68)
	at org.flowable.engine.common.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:29)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.engine.common.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
	at org.flowable.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:90)
	at com.shareniu.shareniu_flowable6.ch5.App.start1(App.java:77)
	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:497)
	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)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.qq.com:465
	at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1421)
	at org.apache.commons.mail.Email.send(Email.java:1448)
	at org.flowable.engine.impl.bpmn.behavior.MailActivityBehavior.execute(MailActivityBehavior.java:97)
	... 40 more
Caused by: javax.mail.AuthenticationFailedException: 535 Error: ??ê1ó?êúè¨??μ????￡?ê?é???′: http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256

	at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:892)
	at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:814)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:728)
	at javax.mail.Service.connect(Service.java:386)
	at javax.mail.Service.connect(Service.java:245)
	at javax.mail.Service.connect(Service.java:194)
	at javax.mail.Transport.send0(Transport.java:253)
	at javax.mail.Transport.send(Transport.java:124)
	at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411)
	... 42 more

    所以接下来，我们看一下qq邮箱如何开启发邮件的功能，对于其他不同厂商提供的邮箱开启方式大体是类似的，可以模仿本文进行测试，

1. 首先需要登录我们的qq邮箱，如下图所示：

   
   

2.点击设置按钮，如下图所示： 

3.点击账户，然后鼠标一直往下来，然后点击开启即可。开启成功之后，会给你一个授权码。这个授权码复制到如下的xml中的mailServerPassword属性即可，如下所示：

<property name="mailServerPassword" value="分享牛" />

按照上面的操作就可以解决邮件不发送的问题了。