Apache James, a.k.a. Java Apache Mail Enterprise Server or some variation thereof, is an open source

SMTP The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients ty ...

and

POP3 In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. POP version 3 (POP3) is the version in common use, and along with IMAP the most common ...

mail transfer agent The mail or post is a system for physically transporting postcards, letters, and parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal syst ...

and

NNTP The Network News Transfer Protocol (NNTP) is an application protocol used for transporting Usenet news articles (''netnews'') between news servers, and for reading/posting articles by the end user client applications. Brian Kantor of the Univers ...

news server written entirely in

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

.James Server - Overview
/ref> James is maintained by contributors to the Apache Software Foundation, with initial contributions by Serge Knystautas.

IMAP In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. IMAP is defined by . IMAP was designed with the goal of per ...

support has been added as of preview version 3.0-M2, which now requires Java 1.5 or later. The James project manages the Apache Mailet

API An application programming interface (API) is a way for two or more computer programs to communicate with each other. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how ...

which defines "matchers" and "mailets". These allow users to write their own mail-handling code, such as to update a database, build a message archive, or filter

spam Spam may refer to: * Spam (food), a canned pork meat product * Spamming, unsolicited or undesired electronic messages ** Email spam, unsolicited, undesired, or illegal email messages ** Messaging spam, spam targeting users of instant messaging ( ...

. A matcher is used to classify messages based on some criteria, and then determines whether the message should be passed to an appropriate mailet for processing. Mailets are so-called due to their conceptual similarity to a

servlet A Jakarta Servlet (formerly Java Servlet) is a Java software component that extends the capabilities of a server. Although servlets can respond to many types of requests, they most commonly implement web containers for hosting web application ...

, and arose because

Sun Microsystems Sun Microsystems, Inc. (Sun for short) was an American technology company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, the ...

declined a proposal to include mail-handling in the servlet implementation. James ships with a variety of pre-written matchers and mailets to serve common tasks. Many sets of mailets and matchers can be combined to produce sophisticated and complex functional behaviour. The Apache James project also produces pure Java libraries for implementing Sender Policy Framework (SPF), the

Sieve A sieve, fine mesh strainer, or sift, is a device for separating wanted elements from unwanted material or for controlling the particle size distribution of a sample, using a screen such as a woven mesh or net or perforated sheet material. T ...

mail filtering language, and parsing MIME content streams, independent of Sun's JavaMail API.

Development

James was originally formed under the Jakarta Project as Jakarta-James. In January 2003, James was upgraded to a top-level Apache project in a unanimous decision by the ASF Board of Directors under the chairmanship of Serge Knystautas. James is distributed to within the Phoenix container, which implements the

Apache Avalon Apache Avalon is a computer software framework developed in 1999 as a project to provide a reusable component framework for container (server) applications. Avalon pioneered the use of design patterns such as separation of concerns (SoC) and invers ...

application framework In computer programming, an application framework consists of a software framework used by software developers to implement the standard structure of application software. Application frameworks became popular with the rise of graphical user inter ...

. Recent developments include a version which runs in the

Spring Framework The Spring Framework is an application framework and inversion of control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions for building web applications on top of the ...

application framework. Version 2.3.0 was released in October 2006. Version 2.3.1 was released in April 2007. Version 2.3.2 was released in August 2009.James Project - News Archive
/ref> Version 2.3.2.1 (security fix) was released on September 8, 2015. Version 3.0.0 was released on July 20, 2017. Version 3.0.1 (security fix) was released on October 20, 2017. Version 3.1.0 was released on July 31, 2018. Version 3.2.0 was released on November 14, 2018. Version 3.3.0 was released on March 26, 2019. Version 3.4.0 was released on September 5, 2019. Version 3.5.0 was released on July 16, 2020.

References

External links

*
Working with James
at IBM developerWorks {{Email servers

James James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (disambiguati ...

Free email server software Free software programmed in Java (programming language) Message transfer agents Usenet servers Email server software for Linux

Development

See also

References

External links