The unsubscriber link is embedded automatically in all drag & drop template's footer.

There are other ways to place it manually in all types of email.

1. Simply insert the merge tag:

[{unsubscribelink}]

HTML example:
<a href="
[{unsubscribelink}]">Click here to unsubscribe</a>

2.) Place your cursor on a text field and click on Personalization, then select Unsubscribe link in the menu bar.

Note: The unsubscribe link doesn't work in test emails.

When a subscriber clicks on the unsubscribe link in your email campaign, they will see your unsubscribe confirmation page.

Read more about how to customize your unsubscribe page here.