I was going through the lists of passwords and accounts I have, updating them, since I’m deleting two old email addresses of mine, and stumbled across this account I completely forgot about (luckily the email address it’s sending to is not being closed)
It’s a website where you can send an email to yourself some distant time in the future, like a time capsule.
I’m not going to read mine early, but here’s the details:
Hello future pushka~
to: email@address 
status: private [make “public, but anonymous”]
January 12th, 2011 January 11th, 2015 delete
I know that my life has changed so much since then, so it will be like getting an email from another person – so interesting ~