> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/deploy/host-n8n/configure-n8n/security/verify-user-emails.md).

# Verify user emails

You can require all new accounts to be verified by email. This prevents malicious admins from registering accounts without email verification.

## Prerequisites <a href="#prerequisites" id="prerequisites"></a>

* SMTP must be set up and n8n must be able to send emails.

## How to restrict account registration <a href="#how-to-restrict-account-registration" id="how-to-restrict-account-registration"></a>

Set the environment variable `N8N_INVITE_LINKS_EMAIL_ONLY` to `true`. This locks down your instance so that only users with verified email addresses can register.

For more details on configuring SMTP, see [Set up SMTP](/deploy/host-n8n/configure-n8n/user-management.md#step-one-smtp).