"There are times when you are not in front of your computer, and you don’t get Outlook calendar reminders to pop up on your phone, so that you might forget some of your important meetings or appointments. In this tutorial, we will show you how to add an email reminder to an event in your Outlook.com calendar, since an email is always more accessible.

I disagree. If I am not at my computer I will not see the e-mail either. The beauty of multiple reminders (non-email) is that I get to see them several times before the event actually happens. Google Calendar has this option, per calendar (I have 7). On my main I have set them to 1 week, 1 day and 30 minutes. It's a real dealbreaker for me. I was moving everything to Office365, but won't do this for the calendar. I can't understand for the life of me, why it only supports 1 reminder. The e-mail reminders are a useless alternative.