> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.closum.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to create SMTP users

Before creating SMTP users, the domain must be **created **and "validated" with the "SMTP" channel.
To help with validation, you can consult our article, [SMTP Domain Validation](https://helpdesk.closum.com/en/article/smtp-domain-validation-a93dhj/) .


### How to create SMTP users

To create users, click on **Settings » Application » Domains** and click on "**Manage Credentials**".

![](https://storage.crisp.chat/users/helpdesk/website/-/1/3/2/3/13239d1250467e00/image_crmzyb.png)


Next, you must create a new **User **and type in the User's name (it must not contain the domain or special characters).

![](https://storage.crisp.chat/users/helpdesk/website/-/1/3/2/3/13239d1250467e00/image_v9wbm6.png)

Once the user has been created, click on "**Manage Credentials**".

![](https://storage.crisp.chat/users/helpdesk/website/-/1/3/2/3/13239d1250467e00/image_1hgrp7b.png)