{"id":121475,"date":"2025-01-25T03:46:07","date_gmt":"2025-01-25T01:46:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-imap-server-dovecot-2-4-0"},"modified":"2025-01-25T03:46:07","modified_gmt":"2025-01-25T01:46:07","slug":"dostupen-imap-server-dovecot-2-4-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/dostupen-imap-server-dovecot-2-4-0","title":{"rendered":"IMAP-server Dovecot 2.4.0 er tilg\u00e6ngelig","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Syv \u00e5r efter lanceringen af version 2.3.0 pr\u00e6senteres en ny gren af den multi-platform IMAP-server Dovecot 2.4.0, som underst\u00f8tter protokollerne POP3 og IMAP4rev1 med popul\u00e6re udvidelser som SORT, THREAD, MULTIAPPEND, QUOTA, ACL, COMPRESS, NOTIFY, METADATA og IDLE, samt autensikerings- og krypteringsmekanismer (SASL, TLS, SCRAM, XOAUTH2). Dovecot bevarer fuld kompatibilitet med de klassiske mbox og Maildir ved at bruge eksterne indeks for at forbedre ydeevnen. For at udvide funktionaliteten kan plugins anvendes, som muligg\u00f8r funktioner som kvoter, ACL, push-notifikationer, fuldtekst-s\u00f8gning og virtuelle postkasser. Projektkoden distribueres under licenserne LGPL og MIT.      <\/p>\n<p>Vigtige \u00e6ndringer:  <\/p>\n<ul>\n<li class=\"l\"> Der er foretaget \u00e6ndringer, der bryder bagudkompatibilitet med konfigurationen, der blev anvendt til version 2.3.x. For eksempel er der indf\u00f8rt en ny syntaks til variabeludfoldning (&#171;%{local_port}&#187; i stedet for &#171;%a&#187; osv.) og modifikatorer (&#171;%{user | md5 | hexlify(1)}&#187; i stedet for &#171;%1Mu&#187; osv.), det er blevet n\u00f8dvendigt at angive navn i sektionerne passdb og userdb, mange indstillinger er blevet omd\u00f8bt, og indstillinger for kvoter er blevet flyttet til en separat sektion.\n<li class=\"l\"> Der er tilf\u00f8jet eksperimentel st\u00f8tte til SMTPUTF8-udvidelsen (RFC 6531) og tilstand &#171;IMAP UTF8=ACCEPT&#187;, som muligg\u00f8r brugen af tegn fra nationale alfabeter i e-mailadresser, v\u00e6rtternavne, postkassenavne og overskrifter. For at aktivere dette kr\u00e6ves en opbygning med indstillingen &#171;&#8212;enable-experimental-mail-utf8&#187; ved k\u00f8rsel af configure-scriptet og indstillingen &#171;mail_utf8_extensions=yes&#187;.\n<li class=\"l\"> Support er tilf\u00f8jet for hash-algoritmen ARGON2, SASL-algoritmerne SCRAM-SHA-1 og SCRAM-SHA-256, og de elliptiske kurver X25519 og X448.\n<li class=\"l\"> LDAP-autentificeringsdriveren har f\u00e5et st\u00f8tte for attributter, der inkluderer flere v\u00e6rdier (multi-value).\n<li class=\"l\"> St\u00f8tte for TLS-udvidelsen Channel Bindings er tilf\u00f8jet.\n<li class=\"l\"> Der er implementeret muligheder for at registrere JA3-hashes ved autentificering, som g\u00f8r det muligt at identificere den software, der bruges til at etablere forbindelsen, baseret p\u00e5 forbindelsens parametre.\n<li class=\"l\"> En ny fuldtekst-s\u00f8gningsplugin, fts-flatcurve, der bruger Xapian engine, er blevet tilf\u00f8jet.\n<li class=\"l\"> IMAP har f\u00e5et st\u00f8tte for returneringskoden INPROGRESS (RFC 9585), som g\u00f8r det muligt at sende notifikationer om status for langvarige operationer.\n<li class=\"l\"> I lib-lua er der implementeret en DNS-klient og en HTTP-klient.\n<li class=\"l\"> I lib-sasl er der tilf\u00f8jet st\u00f8tte for SCRAM-SHA-mekanismer.\n<li class=\"l\"> I lmtp er der tilf\u00f8jet support til SNI (Server Name Indication), som tillader tilknytning af indstillinger til navnet <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3883\">server<\/a>, oplysninger om hvilket sendes i \u00e5ben form i TLS-sessionen.\n<li class=\"l\"> SQLite-driveren har f\u00e5et tilf\u00f8jet st\u00f8tte til transactions journal mode (WAL - Write-Ahead Logging).\n<li class=\"l\"> Der er sikret automatisk aktivering af IMAP-udvidelsen COMPRESS for komprimering af data, der sendes via forbindelse til IMAP-serveren.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen auth_internal_failure_delay, som bestemmer forsinkelsen f\u00f8r der sendes et svar til klienten i tilf\u00e6lde af autenticeringfejl p\u00e5 grund af et internt nedbrud.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen fts_message_max_size, der angiver den maksimale st\u00f8rrelse af e-mailens indhold, der indekseres af fuldtekst s\u00f8gemotoren.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen login_socket_path, der angiver stien til den socket, der anvendes af login-processerne.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen quota_mailbox_count, der angiver det maksimalt tilladte antal oprettede mailbokse.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen quota_mailbox_message_count, der angiver det maksimalt tilladte antal beskeder i \u00e9n mailbox.\n<li class=\"l\"> Der er tilf\u00f8jet en indstilling submission_add_received_header, som styrer tilf\u00f8jelsen af &#171;Received:&#187; headeren til e-mails (kan bruges til at skjule oplysninger om afsenderen).\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen cassandra_log_retries til at styre registreringen i loggen af oplysninger om fejl ved gentagne anmodninger til Apache Cassandra.\n<li class=\"l\"> Indstillingen acl_global_path er blevet deprecieret (st\u00f8tten til globale filer og mapper med ACL er oph\u00f8rt).\n<li class=\"l\"> St\u00f8tten til fuldtekstindekserne fts-lucene og fts-squat er oph\u00f8rt (flyttet til plugins), v\u00e6rkt\u00f8jet dsync (erstatning med doveadm sync), IMAP-kommandoen SETQUOTA og indstillingen set_quota, arkitekturen Dovecot Director, replicator (NFS anbefales), og Sieve-udvidelserne notify, imapflags og vnd.dovecot.duplicate er oph\u00f8rt.\n<li class=\"l\"> Lua Authentication Database har afl\u00f8st databaserne checkpassword, passdb og userdb til autentificeringsdata.\n<li class=\"l\"> St\u00f8tten til plugins zlib, listescape, old-stats og mailbox-alias er oph\u00f8rt.\n<li class=\"l\"> St\u00f8tten til Memcached-driveren er oph\u00f8rt; det anbefales at bruge Redis-driveren i stedet.\n<li class=\"l\"> St\u00f8tten til shadow-driveren er oph\u00f8rt; det anbefales at bruge en autentificeringsdatabase baseret p\u00e5 PAM i stedet.\n<li class=\"l\"> St\u00f8tten til Berkeley DB i dict_db_config er oph\u00f8rt.\n<li class=\"l\"> Underst\u00f8ttelsen af usikre password hashing metoder er som standard deaktiveret (for at genaktivere, skal parameteren auth_allow_weak_schemes bruges).\n<li class=\"l\"> St\u00f8tten til OpenSSL-versioner f\u00f8r 1.0.2 er oph\u00f8rt.      <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62611\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043f\u0443\u0441\u0442\u044f \u0441\u0435\u043c\u044c \u043b\u0435\u0442 \u043f\u043e\u0441\u043b\u0435 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0435\u0440\u0441\u0438\u0438 2.3.0 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0442\u043a\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0433\u043e IMAP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Dovecot 2.4.0, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b POP3 \u0438 IMAP4rev1 \u0441 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u043c\u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f\u043c\u0438, \u0442\u0430\u043a\u0438\u043c\u0438 \u043a\u0430\u043a SORT, THREAD, MULTIAPPEND, QUOTA, ACL, COMPRESS, NOTIFY, METADATA \u0438 IDLE, \u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430\u043c\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0438 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f (SASL, TLS, SCRAM, XOAUTH2). Dovecot \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0435\u0442 \u043f\u043e\u043b\u043d\u0443\u044e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 mbox \u0438 Maildir, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044f \u0432\u043d\u0435\u0448\u043d\u0438\u0435 \u0438\u043d\u0434\u0435\u043a\u0441\u044b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121475","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043f\u0443\u0441\u0442\u044f \u0441\u0435\u043c\u044c 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