Next Generation Online (Nexgo) was the Arcor Group’s online service from 2000 to 2001.
He combined the portals of germany.net , o.tel.o and Arcor into a common platform for information, mail & messaging. A striking symbol for the website was a so-called “Personal Internet Assistant” (PIA), which bundled the links to all functions of the online service:
PIA Messaging A webmail front end with functions for sending, receiving and saving mail, options for receiving and sending faxes, sending SMS, notifying SMS and a voice mailbox. All of these features are known as unified messaging .
PIA Organizer A web frontend for appointments with reminders and comparison functions with Palm Handheld and Outlook.
PIA address book An online address book
PIA Birthdays An online birthday calendar with a reminder function by SMS or email.
PIA Photo Album An online photo album for storing digital photos in different albums. In different access levels, these albums can be made available to the public or only to a limited group of users.
Other components of the portal were current news (news ticker) as well as information from politics, sport and culture. Several web forums, IRC, chats and access to Usenet were available as a community. The participants were also able to set up their own website in the web space provided and UUCP-over-IP access was available for mail and Usenet, which is now operated on the basis of an association. 
The paid video-on-demand service has also been implemented in Nexgo . Payment was made with the small change that was originally developed for the UMS.
Nexgo was replaced by the Arcor brand as an internet platform, while the PIA concept and layout remained unchanged for a long time. After a relaunch of the Arcor portal at the end of 2007, indiamail the characteristic PIA front end  for access to the UMS functions was replaced by a different navigation, and the use of PIA in the portal was largely reduced in favor of a generic service term. However, PIA was retained as the product name for the scope of UMS services that vary depending on the tariff.
In addition to the World Wide Web, e-mail is an important Internet service , not least because it is possible through e-mails, text messages as well as digital documents (e.g. graphics or office documents) typically around the world in a few seconds to send.
In contrast to telephone or Internet relay chat , which enable simultaneous (synchronous) communication, e-mail – like letter mail – is an asynchronous communication medium : the sender sends his message regardless of whether the recipient can accept it immediately or not.
Articles and notations and indiamail.
By default, the feminine form (the email) of grammatical gender has prevailed in Germany , whereas in Switzerland the neuter (the email) has prevailed , while both forms are used in Austria and parts of southwestern Germany.  The Austrian Dictionary lists both the feminine and the neuter, the latter calls but first. The fact that the neuter form prevails is underlined by the fact that “e-mailing” is explained with “sending an e-mail”. 
According to Duden , Wahrig and the official dictionary of the reformed German spelling  , e-mail is the correct spelling.  
A less common synonym is the term e-mail .
Before the advent of e-mail, messages were sent as letters or telegrams , and later – as the first two electronic transmission methods – telex (Telex) and Teletex as well as fax . At the end of the 1980s, the global spread of email began – it was one of the first applications to use the possibilities of the Arpanets . The introduction of e-mail was not targeted, but conquered the network due to user behavior. This surprised the Arpanet initiators, because in 1967 Lawrence Roberts , who later became head of IPTO, had, said the possibility of exchanging messages among the network participants is not an important motivation to build a network of scientific computers (” not an important motivation for a network of scientific computers “).
A forerunner of the e-mail was the MAIL system command in the Multics extension of the CTSS time sharing system at MIT , proposed by the system developers Glenda Schroeder , Louis Pouzin and Pat Crisman in 1964/65 and implemented by Tom Van Vleck in 1965.   Possibilities to send mails in the Arpanet already stimulated JCR Licklider in 1968 and the idea was discussed among the developers ( RFC 196 , “ Mail Box ProtocolBy Richard W. Watson of July 20, 1971). After Multics, in which a mail program for user communication had been implemented, was connected to the Arpanet in October 1971, a mail program via the Arpanet was implemented in early 1972 by the MAC Networking Group under Mike Padlipsky.
Ray Tomlinson sent the first electronic letter in 1971 and has been the inventor of email ever since.  He was with the research firm Bolt, Beranek and Newman (BBN) on the development of the operating system TENEX involved, the
At the beginning of the 1980s, parallel to the Internet, most networks developed systems with which messages could be transmitted. These included mailbox systems, X.25 , Novell and BTX . These systems were largely replaced by the spread of the Internet in the mid-1990s. The RFC 822 protocol dates from 1982 . RFC 822 was replaced by RFC 2822 in 2001 , which in turn was replaced by RFC 5322 in 2008 .
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