{"id":84602,"date":"2020-06-09T13:42:14","date_gmt":"2020-06-09T11:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-94"},"modified":"2020-06-09T13:42:14","modified_gmt":"2020-06-09T11:42:14","slug":"novaya-versiya-pochtovogo-servera-exim-4-94","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-94","title":{"rendered":"Den nye version af mailserveren Exim 4.94","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Efter 6 m\u00e5neders udvikling <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.exim.org\/lurker\/message\/20200601.152400.f7bce8f6.en.html\">tog sted<\/a><\/noindex> udgivelse af mailserveren <noindex><a rel=\"nofollow\" href=\"http:\/\/exim.org\/\">Exim 4.94<\/a><\/noindex>, som inkluderer akkumulative rettelser og nye funktioner. I henhold til maj <noindex><a rel=\"nofollow\" href=\"http:\/\/www.securityspace.com\/s_survey\/data\/man.202005\/mxsurvey.html\">automatiseret unders\u00f8gelse<\/a><\/noindex> Omtrent en million mailservere, hvor Exim udg\u00f8r 57,59% (for et \u00e5r siden 53,03%), Postfix bruges p\u00e5 34,70% (34,51%) af mailserverne, Sendmail \u2013 3,75% (4,05%), Microsoft Exchange \u2013 0,42% (0,57%). <\/p>\n<p>\u00c6ndringerne i den nye udgave kan medf\u00f8re brud p\u00e5 bagudkompatibilitet. Is\u00e6r er visse transporttyper ikke l\u00e6ngere kompatible med uren data (tainted, v\u00e6rdier baseret p\u00e5 data modtaget fra senderen) ved leveringens lokationsbestemmelse. For eksempel kan der opst\u00e5 problemer ved brugen af variablen $local_part i konfigurationen 'check_local_user' ved routing af mail. I stedet for $local_part b\u00f8r den nye rensede variabel '$local_part_data' anvendes. Desuden er det nu tilladt at bruge masker defineret med symbolet '*' i operanderne for headers_remove, hvilket kan medf\u00f8re problemer i konfigurationer, der tidligere har udf\u00f8rt fjernelse af overskrifter, der ender med en stjerne (i stedet for at fjerne specifikke overskrifter vil der blive udf\u00f8rt en maskefjernelse).<\/p>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/ChangeLog\">Vigtige<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/NewStuff\">Optimeringer<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Der er tilf\u00f8jet eksperimentel indbygget st\u00f8tte for SRS (Sender Rewriting Scheme), som g\u00f8r det muligt at omskrive afsenderadressen ved videresendelse uden at kr\u00e6nke SPF-kontrollerne (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sender_Rewriting_Scheme\">Sender Policy Framework<\/a><\/noindex>) og sikre bevaring af afsenderdata til serverens meddelelser i tilf\u00e6lde af leveringsfejl. Metoden best\u00e5r i, at identitetsoplysninger sendes ved oprettelse af forbindelse, for eksempel n\u00e5r alice@example.org overskrives til alice@example.com, vil 'SRS0=HHH=TT=example.org=alice@example.com' blive angivet. SRS er relevant, for eksempel n\u00e5r man organiserer mailinglister, hvor den originale meddelelse videresendes til andre modtagere.\n<li class=\"l\"> Ved brug af OpenSSL er der tilf\u00f8jet st\u00f8tte til fasts\u00e6ttelse af kanal for <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-smtp_authentication.html\">autentifikatorer<\/a><\/noindex> (tidligere kun underst\u00f8ttet for GnuTLS).\n<li class=\"l\"> Begivenheden 'msg:defer' er tilf\u00f8jet.\n<li class=\"l\"> St\u00f8tte for gsasl-autentifikatoren p\u00e5 klientsiden er implementeret, hvilket kun er testet med en handler af \u00e5bne adgangskoder (plaintext). Mulighederne for SCRAM-SHA-256 og SCRAM-SHA-256-PLUS fungerer kun gennem selve <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-the_gsasl_authenticator.html\">gsasl<\/a><\/noindex>.\n<li class=\"l\">  Server-side support for the gsasl authenticator for encrypted passwords has been implemented, serving as an alternative to the previously available plaintext mode.\n<li class=\"l\"> Definitionerne i navngivne lister kan nu markeres med pr\u00e6fikset 'hide' for at undertrykke output af indhold ved udf\u00f8relse af kommandoen '-bP'.\n<li class=\"l\"> The Dovecot IMAP server authentication driver has added experimental support for internet sockets (previously only unix-domain sockets were supported).\n<li class=\"l\"> ACL-udtrykket 'queue_only' kan nu angives som 'queue' og underst\u00f8tter indstillingen 'first_pass_route', svarende til kommandolinjeindstillingen '-odqs'.\n<li class=\"l\"> New variables $queue_size and $local_part_{pre,suf}fix_v have been added.\n<li class=\"l\"> Der er tilf\u00f8jet en indstilling 'sqlite_dbfile' i hovedkonfigurationsblokken til brug ved definition af pr\u00e6fikset for s\u00f8gestrengen. \u00c6ndringen bryder bagudkompatibiliteten \u2013 den gamle metode til at angive pr\u00e6fikset fungerer ikke l\u00e6ngere ved angivelse af uren (tainted) variabler i lookup-foresp\u00f8rgsler. Den nye metode ('sqlite_dbfile') g\u00f8r det muligt at holde filnavnet separat.\n<li class=\"l\"> Options for returning the full path and filtering file types during match have been added to the dsearch lookup block.\n<li class=\"l\"> Options for specifying the server name separately from the search string have been added to the pgsql and mysql lookup blocks.\n<li class=\"l\"> For lookup blocks performing single-key selection, an option has been added to return a cleaned (de-tainted) version of the key when matches are found, instead of the requested data.\n<li class=\"l\"> For all successful list-match selections, variables $domain_data and $localpart_data are now set (previously, list elements involved in the selection were inserted). Additionally, the list elements used in matching are now assigned to variables $0, $1, etc.\n<li class=\"l\"> Der er tilf\u00f8jet operatoren '${listquote {} {}}'.\n<li class=\"l\"> An option for caching results has been added to the expansion operator ${readsocket {}{}{}}.\n<li class=\"l\"> A setting dkim_verify_min_keysizes has been added to list the minimum acceptable sizes for public keys.\n<li class=\"l\"> Parameterne 'bounce_message_file' og 'warn_message_file' er nu afsl\u00f8ret f\u00f8r deres f\u00f8rste brug.\n<li class=\"l\"> En mulighed 'spf_smtp_comment_template' er tilf\u00f8jet for at indstille v\u00e6rdien af variablen '$spf_smtp_comment'.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53116\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.94, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043d\u0435\u0441\u0435\u043d\u044b \u043d\u0430\u043a\u043e\u043f\u0438\u0432\u0448\u0438\u0435\u0441\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043c\u0430\u0439\u0441\u043a\u0438\u043c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043e\u043f\u0440\u043e\u0441\u043e\u043c \u043e\u043a\u043e\u043b\u043e \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0434\u043e\u043b\u044f Exim \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 57.59% (\u0433\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 53.03%), Postfix \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430 34.70% (34.51%) \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, Sendmail &#8212; 3.75% (4.05%), Microsoft Exchange &#8212; 0.42% (0.57%). \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043d\u043e\u0432\u043e\u043c [&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-84602","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=\"\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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