Xcode bot is not sending mail notifications

I've created a bot for Continuous Integration process using Xcode Version 9.3 (9E145). Under the Triggers section I did enable Email Notifications for Periodic Email Report. I'm expecting repost after each integration just like mentioned in this Apple documentation. Eventhough bot is running perfectly fine, I'm not receiving an email with that report to my mail address (Ex. myname@officedomain.com).


Is there any particular configuration that I need to do to receive these eMail notifications or is ther any other thing that I'm missing?