Webmail

From Wikipedia, the miễn phí encyclopedia

Webmail (or web-based email) is an tin nhắn service that can be accessed using a standard trang web browser. It contrasts with tin nhắn service accessible through a specialised tin nhắn client software. Additionally, many mạng internet service providers (ISP) provide webmail as part of their mạng internet service package. Similarly, some trang web hosting providers also provide webmail as a part of their hosting package.

As with any trang web application, webmail's main advantage over the use of a desktop tin nhắn client is the ability vĩ đại send and receive tin nhắn anywhere from a trang web browser.

The first Web Mail implementation was developed at CERN in 1993 by Phillip Hallam-Baker^[1] as a test of the HTTP protocol stack, but was not developed further. In the next two years, however, several people produced working webmail applications.

In Europe, there were three implementations, Søren Vejrum's "WWW Mail",^[2] Luca Manunza's "WebMail",^[3][4] and Remy Wetzels' "WebMail".^[5] Søren Vejrum's "WWW Mail" was written when he was studying and working at the Copenhagen Business School in Denmark, and was released on February 28, 1995.^[6] Luca Manunza's "WebMail" was written while he was working at CRS4 in Sardinia, from an idea of Gianluigi Zanetti, with the first source release on March 30, 1995.^[7] Remy Wetzels' "WebMail" was written while he was studying at the Eindhoven University of Technology in the Netherlands for the DSE^[8][9] and was released early January 1995.

In the United States, Matt Mankins wrote "Webex",^{[10][Note 1]} and Bill Fitler, while at Lotus cc:Mail, began working on an implementation which he demonstrated publicly at Lotusphere on January 24, 1995.^[11][12][13] Matt Mankins, under the supervision of Dr. Burt Rosenberg at the University of Miami,^[14] released his "Webex" application source code in a post vĩ đại comp.mail.misc on August 8, 1995,^[10] although it had been in use as the primary tin nhắn application at the School of Architecture where Mankins worked for some months prior.

Bill Fitler's webmail implementation was further developed as a commercial product, which Lotus announced and released in the fall of 1995 as cc:Mail for the World Wide Web 1.0; thereby providing an alternative means of accessing a cc:Mail message store (the usual means being a cc:Mail desktop application that operated either via dialup or within the confines of a local area network).^[15][16][17]

Early commercialization of webmail was also achieved when "Webex" began vĩ đại be sold by Mankins' company, DotShop, Inc., at the kết thúc of 1995. Within DotShop, "Webex" changed its name vĩ đại "EMUmail"; which would be sold vĩ đại companies lượt thích UPS and Rackspace until its sale vĩ đại Accurev in 2001.^[18] EMUmail was one of the first applications vĩ đại feature a miễn phí version that included embedded advertising, as well as a licensed version that did not.

Hotmail and Four11's RocketMail both launched in 1996 as miễn phí services and immediately became very popular.^[19]

As the 1990s progressed, and into the 2000s, it became more common for the general public vĩ đại have access vĩ đại webmail because:

• many Internet service providers (such as EarthLink) and trang web hosting providers (such as Verio) began bundling webmail into their service offerings (often in parallel with POP/SMTP services);
• many other enterprises (such as universities and large corporations) also started offering webmail as a way for their user communities vĩ đại access their tin nhắn (either locally managed or outsourced);
• webmail service providers (such as Hotmail and RocketMail) emerged in 1996 as a miễn phí service vĩ đại the general public, and rapidly gained in popularity.

In some cases, webmail application software is developed in-house by the organizations running and managing the application, and in some cases it is obtained from software companies that develop and sell such applications, usually as part of an integrated mail server package (an early example being Netscape Messaging Server^[20][21]). The market for webmail application software has continued into the 2010s.

Email users may find the use of both a webmail client and a desktop client using the POP3 protocol presents some difficulties. For example, tin nhắn messages that are downloaded by the desktop client and are removed from the server will no longer be available on the webmail client. The user is limited vĩ đại previewing messages using the trang web client before they are downloaded by the desktop tin nhắn client. However, one may choose vĩ đại leave the emails on the server, in which case this problem does not occur. The use of both a webmail client and a desktop client using the IMAP4 protocol allows the contents of the mailbox vĩ đại be consistently displayed in both the webmail and desktop clients and any action the user performs on messages in one interface will be reflected when the tin nhắn is accessed via the other interface. There are significant differences in rendering capabilities for many popular webmail services such as Gmail, Outlook.com and Yahoo! Mail. Due vĩ đại the varying treatment of HTML tags, such as