Email Deliverability Tools (DKIM, SPF, DMARC Management)

Please add built-in Email Deliverability tools to sPanel.

Right now, sPanel does not provide an easy way for users to view, manage, or generate DKIM, SPF, and DMARC records for their domains. This creates deliverability issues, especially when sending emails from the VPS/server.

Requested features:

- Auto-generation of DKIM keys per domain

- Ability to view DKIM public key inside sPanel

- Automatic SPF configuration suggestion

- Easy DMARC record generator

- A Deliverability Status page showing:

  - DKIM pass/fail

  - SPF pass/fail

  - Reverse DNS status (PTR)

  - MX/SMTP health checks

This will help users achieve better inbox delivery rates, avoid spam filters, and diagnose configuration problems without needing root access.

Adding these tools will significantly improve sPanel’s email reliability and make it comparable to cPanel’s email deliverability section.