Free SMTP Server Setup: Install Postal on VPS (Step-by-Step Tutorial)

I needed my own SMTP email server for sending marketing emails without paying monthly fees to services like SendGrid or Mailgun. So I set up Postal on my Contabo VPS - and it's completely free once you have the server. Here's exactly how I did it, step by step. 🎯 WHAT YOU'LL LEARN: In this complete SMTP server setup tutorial, I'll show you how to install Postal SMTP server on a Contabo VPS, configure Mautic for email marketing, and set up all the DNS records you need for proper email delivery. This is a free alternative to paid SMTP services. ✅Download full command list: https://ceeveeglobal.com/hx3m ✅ What We Cover: - Installing Mautic in Coolify - Complete VPS preparation and updates - Docker and Docker Compose installation - MariaDB database setup for Postal - RabbitMQ message queue configuration - Postal SMTP server installation - SSL certificate setup with Caddy - DNS record configuration (SPF, DKIM, DMARC, PTR) - Creating SMTP credentials - Testing email delivery 🔧 Requirements: - Contabo VPS (or any VPS provider) - Domain name with DNS access - Basic SSH knowledge - 30-45 minutes of your time 💰 Why Build Your Own SMTP Server? - No monthly fees (save $50-200/month) - Complete control over email infrastructure - Unlimited email sending (within your VPS resources) - Better privacy and data ownership - Perfect for email marketing campaigns 📧 SMTP Server Features: - Professional email delivery - Full DNS authentication (SPF, DKIM, DMARC) - SSL/TLS encryption - Web-based admin interface - Integration with Mautic and other platforms - Detailed delivery logs and analytics 🛠️ MY FAVORITE TOOLS FOR WEB DEVELOPMENT: 🚀 Contabo – Affordable & powerful VPS hosting: https://ceeveeglobal.com/refer/contabo 🌐 Namecheap – Best domains & hosting: https://ceeveeglobal.com/refer/namecheap 💻 DigitalOcean – Scalable cloud hosting: https://ceeveeglobal.com/refer/digitalocean 🌟 Hostinger – Reliable hosting solutions: https://ceeveeglobal.com/refer/hostinger 📌 Resources & Guides: Complete Tutorial: https://ceeveeglobal.com/blog/ My FastAPI Tools: https://ceeveeglobal.com/tools/ 00:00 Introduction 00:17 Installing Mautic in Coolify 01:17 Preparing the VPS 02:25 Installing Docker 02:52 Installing MariaDB 03:22 Installing RabbitMQ 03:43 Installing Postal 04:57 Setting Up SSL with Caddy 06:13 Configuring Domain DNS Records 07:13 Testing the SMTP Server 07:52 Configuring PTR Record 📌 STAY CONNECTED: 🌐 Website: https://ceeveeglobal.com, https://aibuilttools.com 📘 Facebook: https://www.facebook.com/CeeVeeFb 🐦 Twitter/X: https://x.com/CeeVeeGlobal1 💬 NEXT VIDEO: In Part 2, I'll show you how to connect Mautic to this Postal SMTP server and start sending professional marketing email campaigns. If this SMTP server setup tutorial helped you, please subscribe and hit that like button. Drop a comment below if you run into any issues during installation - I'll help you troubleshoot! PS: Some links are affiliate links that support the channel at no cost to you. Thanks for your support! #SMTPServer #EmailServer #PostalSMTP #VPSSetup #EmailMarketing #Mautic #FreeEmailServer #ContaboVPS #EmailDelivery #SMTPSetup #TechTutorial #SelfHosted #EmailInfrastructure #DigitalMarketing #WebDevelopment