This is filter is used internally, to trigger an email to an administrator when a new (multisite) user requests access.
multisite archives
This is our selection of topics, tagged "multisite".
b3_add_site_fields()
This is the hook we use to add any registration fields for "site info" for multisite registrations.
b3_new_wpmu_user_message_admin()
With this filter you can override the content of the email sent to the administrator(s) when a new (multisite) user registers.
b3_localhost_blogtitle()
With this filter you can fill the "Blog title" field on the multisite registration form, used for when you're testing registrations.
b3_localhost_blogname()
With this filter you can easily add a dummy blog name for the multisite registration form.
b3_wpmu_user_activated_message()
With this filter you can override the email content sent to the (multisite) user after the account is activated.
b3_wpmu_activate_user_message()
With this filter you can override the email content sent to the (multisite) user to activate his/her account.
b3_signup_for_user()
With this filter you can override the label for the "A user" string on the multisite registration form.
b3_signup_for_site()
With this filter you can override the label for the "A site" string on the multisite registration form.
b3_register_for()
With this filter you can force what the user registers for, when registering on a Multisite.
b3_message_above_new_blog()
This filter allows you to override the text above the form to register a site as a logged in user.
I have a multisite, can I use your plugin ?
Yes and getting better with each update.