Plus addressing
Also called: Subaddressing, Plus sign email
Adding +something before the @ in an email address, like anna+shop@mail.com. Mail still reaches anna@mail.com.
Definition
Many email providers deliver mail for name+tag@domain to name@domain, so people use tags to filter mail and see who shares their address. These addresses are valid, but forms often reject the plus sign by mistake.
In practice
Maya signs up as maya+groceries@mail.com and the form says "Enter a valid email address".
Learn it in context
Lessons that use this term.