List-unsubscribe header with preference center page

[ryan_quinlan]

Our company uses a custom preference center page as our unsubscribe link, so that customers can opt-out of any or all subscription groups (custom preference center created via API: https://www.braze.com/docs/user_guide/message_building_by_channel/email/preference_center/overview/#...). What’s the expected behavior for the unsubscribe link header in this case, will the custom preference center link be pulled into the unsub header?

[catmears]

Follow-up question to this: If we use the expected List-Unsubscriber-Post tags in our headers, what happens in Braze? AKA how does Braze handle the response? I'm looking at Google's example code here:

To set up one-click unsubscribe, include both of these headers in outgoing messages:

• List-Unsubscribe-Post: List-Unsubscribe=One-Click
• List-Unsubscribe: <https://solarmora.com/unsubscribe/example>

When a recipient unsubscribes using one-click, you receive this POST request:

"POST /unsubscribe/example HTTP/1.1
Host: solarmora.com
Content-Type: application/x-www-form-urlencoded
Content-Length: 26
List-Unsubscribe=One-Click"

[Goot]

Hey Cat! Can you clarify the question for me? They should be set to unsubscribed, but our Product team can provide more detail if there's something else you're looking for?

[catmears]

Hey!! I suppose I just wanted to ensure that Braze could handle the reply and mark the subscriber as "Unsubscribed" even when not using the OOTB Braze subscription center. Or maybe I should ask - is this functionality already available within Braze? https://www.braze.com/docs/user_guide/administrative/app_settings/email_settings#enable-list-unsubsc...

[eperez]

Hi Cat! Yes, Braze will be supporting the list-unsubscribe header requirements laid out by Gmail/Yahoo by June 2024.