How do I change my email?

Is it even possible to do? I found how to change my password, but I didn't see an option to change my email as well.

I don't seem to have allowed for that. You could once but then I made a single-sign-on system and changing email addresses seemed to disappear.

With your permission, I'll send an email to your registered email address, you can reply and tell me what you want it changed to.

Yes, please.