There are many useful features in free email services that allow finding new use cases for electronic mail. In this tutorial we will review the process of creating the simple notification system in emergency situations using Outlook.live.com (Hotmail.com). For this purpose we need two functions that are available in email service: delayed delivery of message and rules for processing incoming messages. Similar functions exist in other email services, such as iCloud, Gmail, Yandex.mail and GMX. The main idea of our system is to create and disable delayed email messages. If delayed sending will not disable by the user, emergency alert email will be sent at the specified time. In other words, if user cannot or does not want to switch off delayed sending, it means the occurrence of a certain event. How to enable delayed email sending: All delayed messages are placed in the Drafts folder in Outlook. You can disable sending of these emails there. Let's add another mailbox to our system.