How to disable an account from an I-Pad? (Without the I-Pad...)

How can you disable an account from an I-Pad without it? I have an email linked to an I-Pad that I cannot get a hold of anymore because it was my school's for a required project. I've been sending and recieving anonymous mail from it occasionally. I just changed the password and allowed a vertification for my email login, but I don't want to delete it, it's my primary email. Is there anyway I can disable the account without it? PLEASE HELP! ⚠