Email deliverability is affected by both technical configuration and sender behavior. Even a correctly configured domain can still have poor inbox placement if the content, list quality, or sending patterns look risky to receiving systems.
- SPF, DKIM, and DMARC configuration
- Domain and sender reputation
- Recipient engagement and complaint levels
- Message content, links, and formatting
- List hygiene and bounce management
The best deliverability results come from combining clean DNS setup with responsible sending practices.