Do you use emails in your day to day life. I hope you must know, in today’s environment the technology beyond that Lotus Notes the best medium for conversion in emailing. An Email Client is a computer Software that is used for Email messaging. IBM Notes can be used as a Stand-alone application. Which used by many users. In the market there are various email client is available. Microsoft Outlook Express, Microsoft Outlook, IBM Lotus Notes, Qualcomm Eudora, Novell GroupWise are amongst the famous and most popular email clients.