Glossary/Email & Lifecycle/One-Click Unsubscribe
Email & Lifecycle
One-Click Unsubscribe
A standard (RFC 8058) letting recipients unsubscribe in a single click from the inbox interface, now required by Gmail and Yahoo for bulk senders.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
One-click unsubscribe is a standard, defined in RFC 8058, letting recipients unsubscribe in a single click from the inbox interface. It is now required by Gmail and Yahoo for bulk senders. Making opting out easy reduces spam complaints, which protects sender reputation more than keeping unwilling recipients on the list.