Email Deliverability for Reseller Hosting — SPF/DKIM/DMARC

DNS Records

• SPF: authorize sending hosts.
• DKIM: sign emails for integrity.
• DMARC: policy and reporting.

Reputation

Avoid spammy content, throttle bulk mails, and use dedicated IP if necessary. Monitor bounces and feedback loops.

Client Education

Provide guides for common mail clients and troubleshooting. Keep MX/DNS consistent and SSL enforced.