Filters whether to send the network admin email change notification email.

Filters whether to send an email to the Multisite network administrator when a new site is created.

Filters the metadata for a site signup.

Filters the metadata for a user signup.

Filters reserved site names on a sub-directory Multisite installation.

Filters the content of the welcome email sent to the site administrator after site activation.

Filters the subject of the welcome email sent to the site administrator after site activation.

Filters the content of the welcome email after user activation.

Filters the subject of the welcome email after user activation.

Filters whether the network is considered large.