FACTOID # 151: The five countries with the highest coffee consumption are also the five countries whose citizens trust one another the most. Coincidence? Probably.
 
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Encyclopedia > 8BITMIME

8BITMIME (RFC 1652) is an SMTP extension standardized in 1994 that facilitates the exchange of e-mail messages containing octets outside the seven-bit ASCII range. Prior to the availability of 8BITMIME implementations, mail user agents employed several techniques to cope with the seven-bit limitation, including binary to text encodings and UTF-7. However, each of these workarounds necessarily inflates the bandwidth of non-ASCII transmissions. Extended SMTP (ESMTP) is a definition of protocol extensions to the Simple Mail Transfer Protocol standard. ... 1994 (MCMXCIV in Roman) was a common year starting on Saturday of the Gregorian calendar, and was designated the International year of the Family. ... Wikipedia does not yet have an article with this exact name. ... For other uses, see ASCII (disambiguation). ... An email client (or mail user agent [MUA]) is a computer program that is used to read and send email. ... A binary to text encoding is an encoding of data in plain text. ... UTF-7 (7-bit Unicode Transformation Format) is a variable-length character encoding that was proposed for representing Unicode-encoded text using a stream of ASCII characters, for example for use in Internet e-mail messages. ...


At least the following servers advertise the 8BITMIME extension:

  • Courier
  • ESMTP [1]
  • IIS SMTP Service
  • Maillennium [2]
  • Novell GroupWise
  • Postfix
  • Sendmail (since 6.57)
  • qmail (but does not translate eight-bit messages to seven-bit when relaying to non-8BITMIME peers, as is required by the RFC [3], [4])

As of June 2005, the following servers do not implement the extension: IIS (Microsoft Internet Information Services or Server) is a set of Internet based services for Windows machines. ... GroupWise is a collaborative software product from Novell, Inc. ... Postfix is an open source mail transfer agent (MTA), a computer program for the routing and delivery of email, that is intended as a fast, easy to administer and secure alternative to the widely-used Sendmail. ... Sendmail is an open source mail transfer agent (MTA): a computer program for the routing and delivery of email. ... qmail is a mail transfer agent that runs on Unix. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ...

  • Microsoft Exchange Internet Mail Service (through version 5.5)
  • Exim (eight-bit clean; can optionally advertise the extension, but does not translate eight-bit messages to seven-bit when relaying to non-8BITMIME peers)
  • Apache James [5] (planned)
  • Netscape Messaging Server 4.15

Exim is a mail transfer agent (MTA) used in Unix-like operating systems. ... The Apache Software Foundation (ASF) is a non-profit corporation (classified as 501(c)3 in the United States) to support Apache software projects, including the Apache HTTP Server. ... Netscape Communications Corporation was the publisher of the Netscape Navigator web browser as well as many other internet and intranet client and server software products. ...

See also



 
 

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