Warn HN: Google Calendar is not reliable

I've been using Google Calendar for a few years now.

I've been relying mainly on its "alerting" options -- For example if there's something important I'm supposed to do two months from now, I would set an event for that time with an e-mail alert, and then I'll get an e-mail from Calendar reminding me of that.

I was very happy that there is some service I can write things down in and then completely forget them, trusting it will alert me by e-mail.

Well... Lately I've been suspecting that Calendar is simply dropping e-mails occasionaly. Sometimes there will be an event and I won't get an e-mail. For a while I thought I was missing something, maybe I didn't set the e-mail alert right, or deleted the e-mail and forgot.

But it kept happenning, and today I confirmed it. I made a reminder and made sure everything was set up right, and then I didn't receive the e-mail, and I also checked the spam folder. I'm pretty sure it was just not mailed.

So be warned: You cannot trust Google Calendar to alert you to your important events.