Since an update some time ago it stopped being possible to set calendar email reminders through any client except outlook.com. All other clients (I also use Windows Live Mail and Windows Phone as a client) seem only able to set "Calendar on your PC or mobile phone" reminders. As I want email reminders I set up a default email reminder setting on the calendar itself.

My problem is that it is quite common for the default email reminder setting on the calendar to be "forgotten" by the system. This seems to happen every few months. I will go to outlook.com and find that the email reminders I expect on new events are in fact missing and it is because the setting on the calendar has been removed.

Is there some reason that this setting periodically gets removed? Is there a way to stop this from happening?