Can you get deliverability issues from clean lists?

Yes. Clean lists can still have deliverability issues. List quality is necessary but not sufficient. Authentication problems, poor content, sending pattern issues, or inherited reputation can affect delivery regardless of list cleanliness.

A clean list sent through compromised infrastructure fails. Clean list with poor engagement history at providers faces filtering. Clean list with authentication misconfiguration does not pass verification.

List quality is one pillar of deliverability alongside authentication, infrastructure, content, and engagement. All must work together for optimal results.