[ 'expiration' => 10, ], 'invitation' => [ 'link' => [ 'base_url' => '/invitations/', 'expiration' => 10, ], ], 'limits' => [ 'server' => [ 'basic' => 1, 'pro' => 10, 'ultimate' => 25, ], 'smtp' => [ 'basic' => false, 'pro' => true, 'ultimate' => true, ], ], ];