Configure Link for List Unsubscribe Header

You will need to provide an unsubscribe link for the Unsubscribe Header.

1. Navigate to Setup > Custom Settings.
2. Next to Email Editor Settings click Manage.
3. Click Edit.
4. In List-Unsubscribe URLs, enter a comma-separated list of either an HTTPS URL or a valid mail-to link. Below are two examples:
   • https://unsub.example.com/unsub/me?contact=12345
   • mailto:unsubscribe+12345@unsub.example.com
     • As per RFC 8058 standard, true one-click unsubscribe must use the https protocol. Please refer to RFC 8058 documentation for a more complete description of the format to be used.
5. Click Save.