Web Based Email
Web based email is a service that allows to access and use electronic mail via web browser. In this case email software is running on a web server allowing client to log-in, read and send mail from any computer with internet connection.
Web mail might be unsuitable for business users that use many email accounts; it might be annoying to check all those accounts by logging in to each of them separately. Such users should use email software.
In computing, the Post Office protocol (POP) is an application-layer Internet standard protocol used by local email clients to retrieve email from a remote server over a TCP/IP connection.
This type of email is accessed using email checking, receiving, sending application programs like Outlook Express, Eudora mail etc. This type of mail services is generally provided by the Internet Service Providers (ISP). POP and IMAP (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for email retrieval. Virtually all modern email clients and servers support both. The POP protocol has been developed through several versions, with version 3 (POP3) being the current standard. Most webmail service providers such as Hotmail, Gmail and Yahoo! Mail also provide IMAP and POP3 service.