1. Select your template and click Edit in the Unsubscribe section. 
2. Select whether you want to append the auto-unsubscribe, auto-block unsubscribe, or both.

After these selections have been saved, they will be auto-appended below your signature whenever you send emails with this template.

Note

You can also adjust how these unsubscribe messages appear from the Timezone & Unsubscribes tab in Settings.