The latest articles on DEV Community by wizard (@wizard_0ac4371d77f3efd763). https://dev.to/wizard_0ac4371d77f3efd763 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4085594%2Ffb6ba9a0-45b0-4637-b4aa-e1f8247dd9ec.jpg https://dev.to/wizard_0ac4371d77f3efd763 en wizard Wed, 19 Aug 2026 19:50:33 +0000 https://dev.to/wizard_0ac4371d77f3efd763/how-to-set-up-a-lightweight-smtp-relay-for-your-apps-in-seconds-32l1 https://dev.to/wizard_0ac4371d77f3efd763/how-to-set-up-a-lightweight-smtp-relay-for-your-apps-in-seconds-32l1 <p>If you are running local applications, internal microservices, or custom scripts, you often just need a simple way to send email notifications without configuring a bloated, traditional Mail Transfer Agent (MTA) like Postfix.</p> <p>That is why I created <strong>ZeroSMTP</strong> – a lightweight, open-source SMTP relay gateway designed to keep things fast, simple, and frictionless.</p> <h3> Why ZeroSMTP? </h3> <ul> <li> <strong>Lightweight &amp; Fast:</strong> Built for straightforward email relaying without heavy configuration overhead.</li> <li> <strong>Open Source:</strong> Fully transparent code that you can inspect, modify, and self-host easily.</li> <li> <strong>Developer Friendly:</strong> Great for capturing logs, routing local development mails, or triggering server alerts.</li> </ul> <h3> Quick Links </h3> <ul> <li>📦 <strong>GitHub Repository:</strong> <a href="https://github.com/msgwing/ZeroSMTP" rel="noopener noreferrer">ZeroSMTP on GitHub</a> </li> <li>📖 <strong>Documentation:</strong> <a href="https://docs.msgwing.com/" rel="noopener noreferrer">Official Docs</a> </li> </ul> <h3> How to Get Started </h3> <p>Check out the repository to see the installation steps and docker configurations. If you are into self-hosting, developer tools, or mail infrastructure, give it a try!</p> <p>I would love to hear your feedback, feature ideas, or pull requests. Let me know what you think in the comments below!``</p> smtp devops opensource selfhosted