AdvisorStream provides you with a list of all undeliverable email addresses (bounced, dropped, error). When contacts email address bounces, AdvisorStream drops them as recipients of future marketing emails. This protects your email sending reputation by preventing future bounces. If any valid contacts bounce on marketing emails, there's likely a security filter blocking the incoming message.
Step 1: Click on Contacts
Step 2: From the Email Status dropdown, click Non-deliverable
Step 3: Choose to edit the contact details or delete the contact.