If you are using external delivery servers like Amazon SES, Mandrill, SendGrid, Sparkpost, Leadersend, Dyn, Elasticemail, MailGun, SendinBlue, MailJet, TipiMail and MailerQ; then bounce and complaint are either configured automatically or need manual configuration through webhook setup.

But when you have configured Aritic Mail SMTP server inside your EasySendy Drip (or EasySendy Pro) account, then, Bounce and Complaint notification configuration are taken in background automatically; you need not to worry about this setup.