> 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

Require all new accounts to be verified by email.

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).