# Video tutorials > Short captioned videos showing each setup and day-to-day step in the Couryo dashboard. Source: https://couryo.com/en/docs/videos Short captioned videos, recorded in the dashboard. They work with the sound off. The same videos show up in the dashboard's setup guide and in the "How it works" button on each screen. Rather read? The [Quickstart](https://couryo.com/en/docs/quickstart.md) covers the same path in text. ## Your first email in 1 minute From sign-up to the first delivered email, with no key and no domain. Shows the setup guide and the timeline.

## Verify your domain Add the domain, copy the records into your DNS or connect Cloudflare in one click, and watch verification live.

## Send to anyone What test mode is, what level 1 needs and how a company ID or an older domain opens the account up on its own.

## Connect your app with an API key Create a test key, store it safely and use the ready-made code in Node, PHP, Python, cURL or SMTP.

## Find out why an email didn't arrive Find the email, read the one-sentence summary and the receiving server's original reply, with what to do.