Create HTML file

This html page will allow your recipients to add their email address on your account Global unsubscribe list.
This feature is useful when sending emails using the Email Marketing app since the email addresses are added just to the recipient's unsubscribe list and not to the Global one.
If you want to allow your recipients to unsubscribe from all of your lists you can do that by creating this custom unsubscribe page and add it to your SendGrid account - Subscription Tracking app.