# Mailcheck - n8n [Mailcheck](https://www.mailcheck.co/) is an easy-to-use, fast, and efficient email validation tool with an API integration feature for on-the-go validation. ## Basic operations - Email validation ## Example Usage This workflow allows you to validate your mailing list. You can also find the [workflow](http://51.89.121.95:5678/workflow) on this website. The final workflow should look like the following image. ![](https://i.imgur.com/0YDShQl.png) ### 1. Start node The start node exists by default when you create a new workflow. ### 2. Mailcheck Node 1. First of all, you'll have to enter credentials for the Mailcheck node. You can find out how to do that [here](https://docs.n8n.io/credentials/mailcheck/). 2. Select the Mailcheck from the dropdown list. 3. Enter the email address in the Email field. 4. Add Mailcheck API key by following the structure: * Open the [link](https://app.mailcheck.co/dashboard/api) * Log in/Sign up into your Mailcheck account * Open API from the main menu * Enter the key name * Copy your key and paste it right into the n8n form 5. Click on Execute Node to run the workflow.