Cyrus IMAP server: differenze tra le versioni

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'''Cyrus [[Internet Message Access Protocol|IMAP]] server''' è un [[server di posta elettronica]] sviluppato dall'[[Università Carnegie Mellon]].

Lo [[spool]] di posta utilizza un layout del file system e un formato simile a ''maildir'' utilizzato da altri server come [[qmail]], [[Courier Mail Server|Courier]] e [[Dovecot]].

Gli utenti possono accedere alla posta tramite i protocolli [[IMAP]]/IMAPS, [[POP3]]/POP3S, KPOP.

Il server IMAP Cyrus supporta il filtraggio della posta lato server attraverso l'implementazione di un linguaggio di filtraggio della posta chiamato [[Sieve]].

A partire dalla versione 2.4.17, è stato implementato il supporto per [[CalDAV]] e [[CardDAV]] per fornire una soluzione integrata di calendario e e-mail, nonché il supporto per la visualizzazione di e-mail tramite un lettore [[RSS]].<ref name="cyru_Feat">{{Cita web |titolo=Features |accesso=22 maggio 2020 |url= http://www.cyrusimap.org/imap/concepts/features.html#imap-features |lingua=en }}</ref>

== HistoryStoria ==

PriorPrima todel 1994, [[Carnegiele Melloncaselle University]]e-mail dell'sUniversità emailCarnegie wasMellon basederano onbasate thesul locally-developed and non-standard ''"Andrew Messaging System''" (AMS) -sviluppato writtenlocalmente ine thenon earlystandard, 1980sscritto asall'inizio partdegli ofanni the'80 [[come parte dell'''Andrew Project]]''. ThisQuesto wasera verymolto advancedavanzato forai itssuoi daytempi, butma hadpresentava majorimportanti scalabilityproblemi issuesdi andscalabilità e Carnegie Mellon wantedvoleva topassare movea toun asistema standards-compliantdi mailposta systemconforme thatagli metstandard orche exceededsoddisfacesse theo featuresuperasse il set ofdi funzionalità di AMS.

Nel 1994 la divisione Servizi informatici di Carnegie Mellon ha affrontato questi obiettivi avviando il Progetto Cyrus. Nel 1998, Carnegie Mellon mise per la prima volta tutte le nuove matricole sul server Cyrus e AMS è stato definitivamente eliminato nel maggio 2002.<ref name="Introduction">{{Cita web |titolo=Introduction to Cyrus IMAP |accesso=22 maggio 2020 |url= http://www.cyrusimap.org/imap/quickstart/introduction.html#what-is-imap |lingua=en }}</ref>

Cyrus è tuttora in fase di sviluppo. L'Università Carnegie Mellon rimane attiva nello sviluppo<ref name="Introduction" /> e fornisce anche l'infrastruttura su cui gira cyrusimap.org. Il personale di [[FastMail]] contribuisce gran parte del lavoro recente, poiché dipende da esso come parte del suo servizio commerciale. <ref>{{Cita web|url=https://www.fastmail.com/help/technical/architecture.html|Titolo=The Fastmail storage architecture|lingua=en}}</ref>

In 1994 the Computing Services Division at Carnegie Mellon addressed these goals by starting the Cyrus Project. In 1998, Carnegie Mellon placed all of its incoming [[freshman|freshmen]] (the class of 2002) on the Cyrus server for the first time and in December 2001, [[bboard]] access (which had been mirrored from AMS to Cyrus), was cut over to Cyrus completely. AMS was finally phased out in May 2002.

The Computing Services Division later developed [http://www.cyrusimap.org/imap/reference/admin/murder/murder.html#murder Cyrus "Murder"] clustering,{{efn|The term "murder" is borrowed from the commonly-used [[collective noun]] for crows.<ref>{{cite web|url=http://www.cyrusimap.org/imap/reference/admin/murder/murder-concepts.html#def-murder|title=Cyrus Murder - Concepts|accessdate=28 May 2017|at=Appendix C}}</ref>}} and after several revisions deployed it within Carnegie Mellon in the summer of 2002.

Several members of the Cyrus development team at Carnegie Mellon went on to become leaders in the development of large-scale electronic mail infrastructure elsewhere: John Gardiner Myers was Chief Architect of Host Mail Infrastructure at [[AOL|America Online]];<ref>{{cite web|url=https://www.linkedin.com/in/john-gardiner-myers-5a630130/|title=John Gardiner Myers|accessdate=17 February 2018}}</ref> and Rob Siemborski worked on [[Gmail]] infrastructure at Google.<ref>{{cite web|url=https://tools.ietf.org/html/rfc4954|title=RFC 4954|accessdate=17 February 2018}}</ref>

In the fall of 2016 Carnegie Mellon announced the retirement of Cyrus IMAP as their electronic mail storage service, with Cyrus users required to choose between on-campus Microsoft Exchange and Google "G Suite" off-campus mail.<ref>{{cite web|url=https://www.cmu.edu/computing/services/comm-collab/email-calendar/cyrus/decommission.html|title=Cyrus Retirement|accessdate=17 February 2018}}</ref>

Cyrus is still being actively developed. Carnegie Mellon University remains active in development, and also provides the infrastructure on which cyrusimap.org runs.<ref name=who>{{cite web |title=Who Is Cyrus |url=https://www.cyrusimap.org/overview/who_is_cyrus.html |accessdate=22 December 2018}}</ref> Staff at [[FastMail]] contribute much of the recent work, as they depend upon it as part of their commercial service.<ref>{{cite web |title=Why we contribute to Cyrus IMAP |url=https://fastmail.blog/2016/12/12/why-we-contribute/ |accessdate=22 December 2018}}</ref><ref name=who/><ref>{{cite web|url=https://blog.fastmail.com/2016/12/22/cyrus-development-and-release-plans/|title=Cyrus development and release plans|accessdate=17 February 2018}}</ref>

== Note ==

<references/>