eFax launched its Internet fax service with the goal of using the convenience of email and the speed of the Internet to make it easier for people to send and receive faxes. eFax has grown to become one of the world's largest providers of Internet messaging services, offering fax by email and voicemail by email to more than 9 million members. Our appeal and success are built around three key features: the widest selection of phone numbers; an easy way to send and receive faxes and voicemail by email; and a fast, reliable and secure communications network.