Fastest email client. RapidSMTP is an award winnig high-performance email marketing software, delivering you the best solution to create, personalize and send permission-based emails right from your desktop. RapidSMTP uses a custom network protocol to communicate with high speed email servers and delivers your newsletters fast and reliably typically in a few minutes only. Track the success of your campaings with detailed statistics about opened emails and clicked URLs. You can trace the geographical location of your customers, determine their town and send customized offers to them. RapidSMTP connects to a varity of databases: Microsoft Excel, Microsoft Access, Microsoft Outlook, CSV, dBase, Microsoft SQL Server, MySQL Server, IBM Informix, Oracle, HTML Files and unformatted text are supported. You can highly personalize each email message. RapidSMTP handles subscriptions/unsubscriptions and automatically updates your database.