jabali-panel/doccs/site/src/content/docs/dns-mail.md

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DNS and Mail Deliverability

This guide helps you ship reliable DNS and email delivery.

DNS basics

• Ensure the panel hostname resolves to the server IP.
• If hosting DNS, add glue records at the registrar.
• Keep zone templates consistent for new domains.

Required mail DNS records

• PTR: reverse DNS must match your mail hostname.
• SPF: authorize your server IP.
• DKIM: enable signing for outgoing mail.
• DMARC: enforce policy and reporting.

Checklist

1. PTR set and matches mail.your-domain.
2. SPF includes your server IP.
3. DKIM published and active in your MTA.
4. DMARC policy set (start with p=none then tighten).

Testing deliverability

• Send a test email to a mailbox at a major provider.
• Review headers for SPF/DKIM/DMARC pass.
• Use log files to confirm message flow.

Logs

• Postfix: /var/log/mail.log (path may vary by distro)
• Rspamd: /var/log/rspamd/rspamd.log