PowerMTA Installation on Linux Server

I need PowerMTA version 5.5r6 installed on my dedicated Almalinux server from OVH, which comes with 8 IPs.

Requirements:
- Install PowerMTA 5.5r6
- Configure DKIM, SPF, and DMARC

Ideal Skills:
- Experience with PowerMTA
- Proficient in Almalinux
- Knowledge of email authentication protocols