Fastmail also have tons of alternative domains like nospammail.net so you can make your registering emails in a domain that is separate from you email address.

Fastmail also have tons of alternative domains like nospammail.net so you can make your registering emails in a domain that is separate from you email address. So your address is me@fastmail.com but you could use adresses like mortgage_company@alias.nospammail.net...