Ubuntu Server Configuration Expert Needed

I am in need of a skilled professional with deep knowledge in Ubuntu server configuration. The task includes setting up a custom nameserver and a Postfix mail server for my Hostinger VPS, and linking it with my domain registered in Godaddy.

Key Responsibilities:
- Configure a custom nameserver
- Install and configure a Postfix mail server
- Link the server with a Godaddy registered domain

Ideal Skills:
- Extensive experience with Ubuntu server
- Proficient in Postfix installation and configuration
- Knowledgeable in DNS server setup
- Familiar with Godaddy domain linking

Security Tasks:
- Implement SSL/TLS encryption
- Set up spam filtering
- Configure DKIM/DMARC

Ideal Skills:
- Experience in securing mail servers
- Knowledgeable in SSL/TLS implementation
- Proficient in DKIM/DMARC configuration

Please note, there are no existing custom DNS records to preserve or migrate. The configuration needs to be done from scratch.