One-click unsubscribe

Implementing one-click unsubscribe allows users to directly opt out from a mailing list, newsletter, or any other notification type, and is an important inclusion to comply with email regulations and best practices.

Letting users easily opt out of your messages cut down on unwanted emails in users' inboxes which improves open rates and reduces complaints, and having clear unsubscribe options in your messages lends credibility and transparency.

Provider requirements

• Google requires senders who send 5,000 or more messages a day to Gmail accounts to support one-click unsubscribe.
• Yahoo have adopted similar requirements.
• Microsoft support one-click unsubscribe, but don't yet require it.

Implementation

The List-Unsubscribe email header is defined in RFC 2369, and the one-click mechanism is further specified in RFC 8058

If the "One-click unsubscribe" option is enabled in your Mail Identity, and you don't supply a List-Unsubscribe value in your email, Sendamatic will automatically include one and handle any unsubscribe requests. Unsubscribe notifications will be sent to the email or webhook feedback method defined in the Mail Identity.

If you send List-Id headers with your email, this will be included in the feedback notification to help you manage users with multiple subscriptions or notification types.