java - Azkaban：无法发送通知邮件

Question

我无法从 Azkaban 作业调度工具发送电子邮件通知。

这是我的配置（不能透露电子邮件信息）：

mail.sender=****@****.com
mail.host=smtp.**********.com
mail.user=******@********.com
mail.password=********

错误：

ERROR [Emailer] [Azkaban] Failed to send success email message for execution 4
java.lang.RuntimeException: From address not set.
    at azkaban.utils.EmailMessage.checkSettings(EmailMessage.java:153)
    at azkaban.utils.EmailMessage.sendEmail(EmailMessage.java:166)
    at azkaban.utils.Emailer.sendEmail(Emailer.java:220)
    at azkaban.utils.Emailer.alertOnSuccess(Emailer.java:153)
    at azkaban.executor.ExecutionControllerUtils.alertUserOnFlowFinished(ExecutionControllerUtils.java:140)
    at azkaban.executor.ExecutionFinalizer.finalizeFlow(ExecutionFinalizer.java:97)
    at azkaban.executor.RunningExecutionsUpdater.updateExecutions(RunningExecutionsUpdater.java:130)
    at azkaban.executor.RunningExecutionsUpdaterThread.run(RunningExecutionsUpdaterThread.java:54)