# Send emails using Retool with SMTP

### Prerequisites

Before you start, you'll need:

- A Resend [API key](/guides/get-started-create-an-api-key)
- A [verified domain](/guides/get-started-add-a-domain)

## Guide

::::steps
:::step{title="Get the Resend SMTP credentials"}
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`
:::

:::step{title="Integrate with Retool SMTP"}
Log into your [Retool](https://retool.com) account and create a new SMTP Resource.

1. Go to **Resources** and click **Create New**

![Retool SMTP - Create new Resources](../img/site-assets/mintcdn.com/resend/OWNnQaVDyqcGyhhN/images/retool-smtp-1-tgj9fd.png)

2. Search for **SMTP** and select it

![Retool SMTP - Search for SMTP](../img/site-assets/mintcdn.com/resend/OWNnQaVDyqcGyhhN/images/retool-smtp-2-1c2xxf2.png)

3. Add name and SMTP credentials

![Retool SMTP - Add SMTP credentials](../img/site-assets/mintcdn.com/resend/OWNnQaVDyqcGyhhN/images/retool-smtp-3-qj5us6.png)
:::
::::

## Related pages

- [Send emails with SMTP](./get-started-send-with-smtp.md)
- [Send Auth0 transactional emails with Resend](./get-started-send-with-auth0.md)
- [Send emails using Customer.io with SMTP](./get-started-send-with-customer-io-smtp.md)
- [Send emails using Django with SMTP](./get-started-send-with-django-smtp.md)
- [Send emails using Laravel with SMTP](./get-started-send-with-laravel-smtp.md)
- [Send emails using Liferay with SMTP](./get-started-send-with-liferay-smtp.md)
- [Send emails using Nodemailer with SMTP](./get-started-send-with-nodemailer-smtp.md)
- [Send emails using PHPMailer with SMTP](./get-started-send-with-phpmailer-smtp.md)
- [Send emails using Rails with SMTP](./get-started-send-with-rails-smtp.md)
- [Send emails using Supabase with SMTP](./get-started-send-with-supabase-smtp.md)

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