How Email Compliance List Unsubscribe Header Works
In Bullhorn Recruitment Cloud, adding a List-Unsubscribe header to emails informs the email client what to do when the recipient clicks the Unsubscribe link.
Typically, the email client will treat this URL as a web page, displaying a user interface where the recipient can manage their email preferences. This approach is not strictly a One-Click Unsubscribe, as it requires further steps to finalize the opt-out process.
To address this, a second configuration option is available. This option provides an unsubscribe link that immediately unsubscribes the recipient without additional steps.
This is achieved by including a List-Unsubscribe-Post header. In this scenario, the email client performs an HTTP POST operation with the URL, bypassing the user interface- this is what is known as true One-Click Unsubscribe.
For details on how to set one-click unsubscribe up, see Enable One-Click Unsubscribe for List Header.
For details about assumptions and limitations see Email Compliance List Unsubscribe Header Assumptions & Limitations.

