diff --git src/bp-core/bp-core-filters.php src/bp-core/bp-core-filters.php
index d02e324..f01189d 100644
--- src/bp-core/bp-core-filters.php
+++ src/bp-core/bp-core-filters.php
@@ -250,8 +250,9 @@ add_filter( 'bp_login_redirect', 'bp_core_login_redirect', 10, 3 );
 function bp_core_filter_user_welcome_email( $welcome_email ) {
 
 	// Don't touch the email when a user is registered by the site admin
-	if ( is_admin() )
+	if ( is_admin() || is_network_admin() ) {
 		return $welcome_email;
+	}
 
 	// Don't touch the email if we don't have a custom registration template
 	if ( ! bp_has_custom_signup_page() )