Since my personal email got spammed last year, i've changed it, and it never gets loose online ever... Problem solved..
Rather use a throw-away account by Gmail for all online use... If a site requires it for identification type purposes, then i won't use the site.
If u have more than 1 email address, unless u use a password manager to keep them all and THAT never gets loose either, u'd have a job remember which one you used where.
Its a public email address.... that's already says "not secure" but your passwords are unique.. and masked anyway.