> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://kb.challonge.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).

# Requiring Verified Email Address

### Enjoy Challonge's features by verifying your email address.

As a tournament organizer hosting a tournament with open registration and/or a sign-up page, we strongly encourage that you require participants to verify their email address first. This is a prerequisite to ensure that your participants get email notifications about their upcoming matches, the tournament results, and community announcements. A verified email address is also required before allowing participants to [upload match attachments and report their own scores](https://kb.challonge.com/en/article/how-to-upload-match-attachments-and-report-scores-47g9zp/) on the bracket. 

|| This is only available for tournaments with a [Sign-Up Page](https://kb.challonge.com/en/article/hosting-a-sign-up-page-hsknjd/) or open registration.

First, click **Settings** from the bracket and scroll down to **Experimental Features**. Enable the *Require participants to have verified emails before joining the competition. (Only available for open registration tournaments)* option then hit **Save Changes**.

![](https://storage.crisp.chat/users/helpdesk/website/-/9/9/e/a/99ea6ef0934f9800/screenshot-2025-12-22-at-44416_1dyisjh.png)


If a participant hasn't verified their Challonge account yet and visits the bracket, they will receive this message:

![](https://storage.crisp.chat/users/helpdesk/website/99ea6ef0934f9800/2jpg_1occ4hi.jpg)

By clicking the **Send Verification Link** button, a message from Challonge will be sent to their registered email address to complete the verification process (check your Inbox or Spam folder).

![](https://storage.crisp.chat/users/helpdesk/website/99ea6ef0934f9800/3jpg_1ub64ai.jpg)


![](https://storage.crisp.chat/users/helpdesk/website/99ea6ef0934f9800/4jpg_1xdq2f6.jpg)

Congratulations! Your participants are now fully fledged Challonge users and ready to join the competition.