Editing Email Deliverability Reports (section)

== What is the List-Unsubscribe Header? ==

The List-Unsubscribe header is a bit of code added to all emails sent from the ActiveCampaign platform. This includes campaigns, automation emails, and 1:1 emails. Mailbox Providers that support the List-Unsubscribe functionality may display an unsubscribe button in the user interface or implement backend functionality to help manage unsubscribe requests.

Example:
```
List-Unsubscribe: <mailto:unsubscribe-1234@acems1.com>, <https://ac.emlnk1.com?s=1234>
List-Unsubscribe-Post: List-Unsubscribe=One-Click
```

Gmail will require a one-click list-unsubscribe header starting in June 2024. ActiveCampaign automatically inserts this in all messages for you, without any action needed on your part. ActiveCampaign handles this requirement.

Gmail has the most advanced implementation of the List-Unsubscribe header. If your reputation at Gmail is good and if you have the List-Unsubscribe header in your email, Gmail will display a pop-up box when a contact clicks the “Report Spam” button, asking the contact to unsubscribe. The List-Unsubscribe header can also be seen listed next to the sender email address in the Gmail UI.

Once a contact clicks the unsubscribe option, they will be given an “Unsubscribed” status for your email list in your ActiveCampaign account.