How to Set up smtp relay

Published November 1, 2024 · Updated July 16, 2026 · Guides & Tutorials

Need an SMTP relay working today, not next week? Good news: with a managed provider, the fast path really is fast. This is the short version — the essential moves to get an authenticated relay sending in about five minutes, without the deep-dive theory.

The five-minute setup

Sign up for a dedicated SMTP and grab your host, port 587, username, and password.
Drop in the DNS records the provider gives you (SPF, DKIM, DMARC) — copy, paste, save.
Enter the SMTP settings in your app or mailer: host, port 587, STARTTLS, username, password.
Send a test to yourself and confirm it lands in the inbox.
Go — start with a modest volume and ramp up.

Why it's fast with a managed relay: the server, dedicated IP, and authentication are prepared the moment you sign up. There is nothing to build — you are just connecting to something that already works.

Sending in minutes

Your SMTP relay, ready right now

Dedicated IP and SPF/DKIM/DMARC prepared on signup — paste the credentials and send today. From $39.99/mo, cancel anytime.

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Frequently asked questions

How quickly can I set up an SMTP relay?

With a managed dedicated SMTP, about five minutes — sign up, paste the DNS records, enter the credentials in your app, and test.

What details do I need?

Host, port 587, username, and password from your provider, plus the SPF/DKIM/DMARC records to publish for your domain.

Do I need to configure a server myself?

No — a managed relay is already built and authenticated. You just connect to it, unlike a self-hosted setup where you own all the configuration.