Require 'Confirm registrations'

If your site or any institution on it allow self-registration, you may wish to use this setting. It will require an administrator to approve people who self-register on the site, preventing people who are not allowed on the site, e.g. spammers, from creating accounts unnoticed.

If you do not use this setting and allow self-registration, institutions can decide whether to require account confirmation or not for self-registering people.

When you don't use "Confirm registration" either for the entire site or on an institution by institution basis, accounts are created even when an institution administrator does not approve a person registering for their institution. The account would be created in the default site, the "No institution".

Self-registration without any administrator approval may be useful for sites that are open to the public for registration. Institutions though should always consider using the registration confirmation to only give access to their members.

If isolated institutions are turned on in the config.php file, the "Confirm registration" on the site level is turned on per default so that institutions cannot change that setting. Site administrators cannot change the setting either. Every account needs to be approved.