It is possible to enable a public signup for your Confluence site. People can then add their own usernames and log in to the site immediately.
If you want to restrict your site to a particular set of users, you may want to restrict the e-mail domains or disable public signup completely.
To enable or disable public signup:
The preceding screenshot shows us a couple of options.
We can enable or disable the public signup with a single checkbox. Enabling public signup also gives us the possibility to restrict the users' e-mail addresses to one or more domains.
A very useful feature is to notify administrators by e-mail when an account is created. This way you can still detect if someone is signing up who shouldn't or grant extra permissions to users who need them.
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