---
title: "SMTP Service"
slug: smtp-service
description: "Start integrating with third-party services and sending emails via SMTP."
created_at: "2023-08-08"
updated_at: "2024-11-28"
image: https://cdn.resend.com/posts/smtp-service.jpg
humans: ["jonni-lundy"]
---

<iframe
  width="672"
  height="378"
  src="https://www.youtube.com/embed/MM1JE6-inmc"
  title="YouTube video player"
  frameBorder="0"
  allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
  allowFullScreen
></iframe>

## How to use SMTP

When configuring your SMTP integration, you’ll need to use the following credentials:

- Host: `smtp.resend.com`
- Port: `465`
- Username: `resend`
- Password: `YOUR_API_KEY`

Replace `YOUR_API_KEY` with an existing key or create a new [API Key](https://resend.com/api-keys).

## Understand SMTP ports

Ports help to instruct the type of security you want to use in your SMTP connection.

- For a SSL connection, use port `465` or `2465`.
- For an unencrypted or a TLS connection, use port `25`, `587`, or `2587`.

If you don't know which port to use, we recommend using `465`.

## Explore SMTP integrations

One of the most common ways to use SMTP is to integrate with a third-party service.

Here are some integrations we documented for you:

- [Customer.io](https://resend.com/docs/send-with-customer-io-smtp)
- [Django](https://resend.com/docs/send-with-django-smtp)
- [Laravel](https://resend.com/docs/send-with-laravel-smtp)
- [Liferay](https://resend.com/docs/send-with-liferay-smtp)
- [Nodemailer](https://resend.com/docs/send-with-nodemailer-smtp)
- [Rails](https://resend.com/docs/send-with-rails-smtp)
- [Retool](https://resend.com/docs/send-with-retool-smtp)
- [Supabase](https://resend.com/docs/send-with-supabase-smtp)
- [Wordpress](https://resend.com/docs/send-with-wordpress-smtp)

## Start sending via SMTP

Go to [SMTP configuration page](https://resend.com/settings/smtp) to start sending emails via SMTP.

[![SMTP on the Dashboard](https://cdn.resend.com/posts/smtp-dashboard.png)](https://resend.com/settings/smtp)

Check the [documentation](https://resend.com/docs/send-with-smtp) to learn more about SMTP.