COMPUTER SOFTWARE, NAMELY, APPLICATION PROGRAMMING INTERFACE SOFTWARE; COMPUTER SOFTWARE FOR USE IN E-MAIL MANAGEMENT, STORAGE, ARCHIVING, FILTERING AND MESSAGE TRANSMISSION; COMPUTER SOFTWARE FOR SERVING E-MAIL; COMPUTER SOFTWARE FOR PROVIDING E-MAIL SERVER FUNCTIONALITY; COMPUTER SOFTWARE FOR TRANSMITTING E-MAIL, INSTANT MESSAGES, DATA, SHARED-CALENDARING, CONTACT INFORMATION AND E-MAIL ACCESSORIES