Liberty Global (Chello, UPC and UnityMedia) (use the Universal Feedback Loop to apply) Locaweb Mail.ru OpenSRS/Hostedmail (Tucows) Rackspace Seznam Synacor Telenor Telstra Terra UOL Virgilio XS4ALL Yandex Other ISPs that offer FBL: Verizon Media (AOL and Yahoo!) Earthlink Outlook.com (Ho...