Whitelisting Email Addresses

CTFd supports the whitelisting of email domains. Only administrators can add or remove domains from the account email whitelist.

To add a domain to the whitelist:

  1. Go to the config page under the admin panel and select the accounts tab.
  2. The first option is “Account Email Whitelist” and enter all the domains can be used for the competition separated with a comma. Leaving it blank will allow users to sign up with any email.