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Fetchmail
Fetchmail is an open-source software utility for POSIX-compliant operating systems which is used to retrieve e-mail from a remote POP3, IMAP, or ODMR mail server to the user's local system. It was developed from thpopclientprogram, written by Carl Harris. Its chief significance is perhaps that its author, Eric S. Raymond, used it as a model to discuss his theories of open-source software development in a widely read and influential essay on software development methodologies ''The Cathedral and the Bazaar''. Design By design, Fetchmail's only means of delivering messages is by submitting them to the local MTA/Message transfer agent or invoking a mail delivery agent like procmail, maildrop, or sendmail; delivering directly to mail folders such as maildir is not supported. Dan Bernstein, getmail creator Charles Cazabon and FreeBSD developer Terry Lambert, have criticized Fetchmail's design, its number of security holes, and that it was prematurely put into "maintenance mode". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Getmail
getmail is a simple mail retrieval agent intended as a replacement for fetchmail, implemented in Python. It can retrieve mail from POP3, IMAP4, and ''Standard Dial-up POP3 Service'' servers, with or without SSL. It supports simple and domain (multidrop) mailboxes, mail filtering via any arbitrary program, and supports a wide variety of mail destination types, including mboxrd, maildir, and external arbitrary mail delivery agents. Unlike fetchmail, getmail's Python foundation makes it nearly immune to buffer overflow security holes. It also has a simpler configuration syntax than fetchmail, but supports fewer authentication protocols. The software can also function as a basic mail delivery agent. Getmail is free software and is licensed under the GNU General Public License version 2. It is written and maintained by Charles Cazabon. The original getmail software requires Python 2, which is no longer supported. A fork named getmail6, which is not from getmail's original auth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mail Delivery Agent
A message delivery agent (MDA), or mail delivery agent, is a computer software component that is responsible for the delivery of e-mail messages to a local recipient's mailbox., ''Internet Mail Architecture'', D. Crocker (July 2009) It is also called a local delivery agent (LDA). Within the Internet mail architecture, local message delivery is achieved through a process of handling messages from the message transfer agent, and storing mail into the recipient's environment (typically a mailbox). Implementation Many mail handling software products bundle multiple message delivery agents with the message transfer agent component, providing for site customization of the specifics of mail delivery to a user. Unix On Unix-like systems, procmail and maildrop are the most popular MDAs. The Local Mail Transfer Protocol (LMTP) is a protocol that is frequently implemented by network-aware MDAs. Invocation The mail delivery agent is generally not started from the command line, but is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fdm (software)
fdm (fetch/filter and deliver mail) is a mail delivery agent and email filtering software for Unix-like operating systems, similar to fetchmail and procmail. It was started in 2006 by Nicholas Marriott who later also started tmux in 2007. Adoption fdm is available as a package in many Unix-like operating systems. It has been included in OpenBSD ports since 2007-01-18. When in 2014 the last maintainer of procmail posted a message to an OpenBSD mailing list himself suggesting that he remove the procmail port, it has been suggested by a well-known OpenBSD ports maintainer that fdm is the natural alternative (the procmail port, however, has not been removed and remains in place as of 2020). fdm is listed on the OpenBSD Innovations page, in the section of projects maintained by OpenBSD developers outside of OpenBSD. See also * fetchmail * procmail * maildrop * Sieve (mail filtering language) Sieve is a programming language that can be used for email filtering. It owes it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mail Delivery Agent
A message delivery agent (MDA), or mail delivery agent, is a computer software component that is responsible for the delivery of e-mail messages to a local recipient's mailbox., ''Internet Mail Architecture'', D. Crocker (July 2009) It is also called a local delivery agent (LDA). Within the Internet mail architecture, local message delivery is achieved through a process of handling messages from the message transfer agent, and storing mail into the recipient's environment (typically a mailbox). Implementation Many mail handling software products bundle multiple message delivery agents with the message transfer agent component, providing for site customization of the specifics of mail delivery to a user. Unix On Unix-like systems, procmail and maildrop are the most popular MDAs. The Local Mail Transfer Protocol (LMTP) is a protocol that is frequently implemented by network-aware MDAs. Invocation The mail delivery agent is generally not started from the command line, but is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procmail
procmail is an email server software component — specifically, a message delivery agent (MDA). It was one of the earliest mail filter programs. It is typically used in Unix-like mail systems, using the mbox and Maildir storage formats. procmail was first developed in 1990, by Stephen R. van den Berg. Philip Guenther took over maintainership for a number of years, but relinquished the role in 2014. The software remained unmaintained for several years, and was believed to be defunct. In 2020 May, Stephen van den Berg resumed maintenance again. The program has since seen multiple releases and bug-fixes. Uses The most common use case for procmail is filter mail into different mailboxes, based on criteria such as sender address, subject keywords, and/or mailing list address. Another use is to let procmail call an external spam filter program, such as SpamAssassin. This method can allow for spam to be filtered or deleted. The procmail developers have built a mailing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OfflineIMAP
OfflineIMAP is IMAP synchronization utility software, capable of synchronizing mail on IMAP server with local Maildir folder or another server. Description The synchronization is performed bidirectionally between two endpoints ("Remote" and "Local" repositories). OfflineIMAP accesses mail servers only via Internet Message Access Protocol (Post Office Protocol – another popular way to get mail from server – is not supported), it works faster (though it is sensitive to connection's latency) and supports more advanced features than most mail clients. The special mode for better handling the non-standard implementation of IMAP in Gmail may optionally be enabled in a configuration file. When configured to store mail locally, OfflineIMAP uses the Maildir format. Unix mail boxes support may be added in the future, though currently it is not implemented. Configuration Several synchronizations account, each consisting of Remote and Local repositories, may be defined in configur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mail Retrieval Agent
A mail retrieval agent (MRA) is a computer application that retrieves or fetches e-mail from a remote mail server and works with a mail delivery agent to deliver mail to a local or remote email mailbox. MRAs may be external applications by themselves or be built into bigger applications like a mail user agent. Significant examples of standalone MRAs include fetchmail and getmail. The concept of an MRA is not standardized in email architecture. Although they operate like mail transfer agents, MRAs are technically clients when they retrieve and submit messages. Delivery mechanisms The mail retrieval agent may support delivery of retrieved mail via the following mechanisms: * Via a mail transport agent (Listening for SMTP transfers on port 25) * Via a mail delivery agent * Direct delivery to an mbox formatted mailbox * Direct delivery to a maildir directory * Output to standard output Multiple mailbox support The mail retriever agent may support retrieval of mail from multiple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Cathedral And The Bazaar
''The Cathedral and the Bazaar: Musings on Linux and Open Source by an Accidental Revolutionary'' (abbreviated ''CatB'') is an essay, and later a book, by Eric S. Raymond on software engineering methods, based on his observations of the Linux kernel development process and his experiences managing an open source project, fetchmail. It examines the struggle between top-down and bottom-up design. The essay was first presented by the author at the Linux Kongress on May 27, 1997 in Würzburg (Germany) and was published as the second chapter of the sametitled book in 1999. The illustration on the cover of the book is a 1913 painting by Liubov Popova titled ''Composition with Figures'' and belongs to the collection of the State Tretyakov Gallery. The book was released under the Open Publication License v2.0 in 1999. "The Cathedral and the Bazaar" The essay contrasts two different free software development models: * The ''Cathedral'' model, in which source code is available with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric S
The given name Eric, Erich, Erikk, Erik, Erick, or Eirik is derived from the Old Norse name ''Eiríkr'' (or ''Eríkr'' in Old East Norse due to monophthongization). The first element, ''ei-'' may be derived from the older Proto-Norse ''* aina(z)'', meaning "one, alone, unique", ''as in the form'' ''Æ∆inrikr'' explicitly, but it could also be from ''* aiwa(z)'' "everlasting, eternity", as in the Gothic form ''Euric''. The second element ''- ríkr'' stems either from Proto-Germanic ''* ríks'' "king, ruler" (cf. Gothic ''reiks'') or the therefrom derived ''* ríkijaz'' "kingly, powerful, rich, prince"; from the common Proto-Indo-European root * h₃rḗǵs. The name is thus usually taken to mean "sole ruler, autocrat" or "eternal ruler, ever powerful". ''Eric'' used in the sense of a proper noun meaning "one ruler" may be the origin of ''Eriksgata'', and if so it would have meant "one ruler's journey". The tour was the medieval Swedish king's journey, when newly elected, to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dan Bernstein
Daniel Julius Bernstein (sometimes known as djb; born October 29, 1971) is an American German mathematician, cryptologist, and computer scientist. He is a visiting professor at CASA at Ruhr University Bochum, as well as a research professor of Computer Science at the University of Illinois at Chicago. Before this, he was a professor (" persoonlijk hoogleraar") in the department of mathematics and computer science at the Eindhoven University of Technology. Early life Bernstein attended Bellport High School, a public high school on Long Island, graduating in 1987 at the age of 15. The same year, he ranked fifth in the Westinghouse Science Talent Search. In 1987 (at the age of 16), he achieved a Top 10 ranking in the William Lowell Putnam Mathematical Competition. Bernstein earned a B.A. in mathematics from New York University (1991) and a Ph.D. in mathematics from the University of California, Berkeley (1995), where he studied under Hendrik Lenstra. ''Bernstein v. United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maildir
The Maildir e-mail format is a common way of storing email messages in which each message is stored in a separate file with a unique name, and each mail folder is a file system directory. The local file system handles file locking as messages are added, moved and deleted. A major design goal of Maildir is to eliminate the need for program code to handle file locking and unlocking. __TOC__ Specifications A Maildir directory (often named Maildir) usually has three subdirectories named tmp, new, and cur. The tmp subdirectory temporarily stores e-mail messages that are in the process of being delivered. This subdirectory may also store other kinds of temporary files. The new subdirectory stores messages that have been delivered, but have not yet been seen by any mail application. The cur subdirectory stores messages that have already been seen by mail applications. Maildir++ Sam Varshavchik, the author of the Courier Mail Server and other software, wrote an extension to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sendmail
Sendmail is a general purpose internetwork email routing facility that supports many kinds of mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet. A descendant of the '' delivermail'' program written by Eric Allman, Sendmail is a well-known project of the free and open source software and Unix communities. It has spread both as free software and proprietary software. Overview Allman had written the original ARPANET delivermail which shipped in 1979 with 4.0 and 4.1 BSD. He wrote Sendmail as a derivative of delivermail in the early 1980s at UC Berkeley. It shipped with BSD 4.1c in 1983, the first BSD version that included TCP/IP protocols. In 1996, approximately 80% of the publicly reachable mail-servers on the Internet ran Sendmail. More recent surveys have suggested a decline, with 3.64% of mail servers in March 2021 detected as running Sendmail in a study performed by E-Soft, Inc. A previous su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
