Comment inclure le lien de désabonnement dans un courriel ?

The unsubscribe link depends on the service that you use to send emails (such as UniSender, SendPulse, Mailchimp, etc.). Usually such services automatically include an unsubscribe link or allow you to insert a special tag, for example: {{unsubscribe}}, %UNSUBSCRIBE_LINK%, etc.

Veuillez préciser à quoi doit ressembler exactement le lien dans le support de votre service de newsletter.

If you are creating the email on the Tilda side, you can try using the link: {{UnsubscribeUrl}} - if your mail service supports it.