wp-includes/user.php:523For Multisite blogs, checks if the authenticated user has been marked as a spammer, or if the user's primary blog has been marked as spam.
$userWP_User|WP_Error|nullWP_User|WP_ErrorOne hook fires while wp_authenticate_spam_check() runs, in this order:
Filters whether the user has been marked as a spammer.
function wp_authenticate_spam_check( $user ) { if ( $user instanceof WP_User && is_multisite() ) { /** * Filters whether the user has been marked as a spammer. * * @since 3.7.0 * * @param bool $spammed Whether the user is considered a spammer. * @param WP_User $user User to check against. */ $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user ); if ( $spammed ) { return new WP_Error( 'spammer_account', __( '<strong>Error:</strong> Your account has been marked as a spammer.' ) ); } } return $user;}Introduced in 3.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/user.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.