Hosted forms can be linked to from an email using one of the following merge tags:
- *|UNSUB|* : links to the unsubscribe page that asks if the customer wants to unsubscribe
- *|OPTIN|* : links to a page that subscribes the customer
- *|OPTOUT|* : links to a page that unsubscribes the customer
or by specifying the form *|_FORM:<name>|* where <name> is the name of the form.
These pages can be styled and set up so that you can edit the textual content of the pages.
Where you have configured email categories, the unsubscribe page includes a list of the different categories and allows the customer to indicate preferences as to which categories of emails they would like to subscribe to.