{"id":101456,"date":"2021-09-29T16:22:36","date_gmt":"2021-09-29T14:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-95"},"modified":"2021-09-29T16:22:36","modified_gmt":"2021-09-29T14:22:36","slug":"novaya-versiya-pochtovogo-servera-exim-4-95","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-95","title":{"rendered":"Noua versiune a serverului de e-mail Exim 4.95","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A avut loc lansarea serverului de email Exim 4.95, \u00een care au fost incluse corec\u021bii acumulate \u0219i ad\u0103ugate noi func\u021bionalit\u0103\u021bi. Conform sondajului automatizat din septembrie, care include peste un milion de servere de email, cota Exim este de 58% (cu un an \u00een urm\u0103 57.59%), Postfix este utilizat pe 34.92% (34.70%) din serverele de email, Sendmail \u2014 3.52% (3.75%), MailEnable \u2014 2% (2.07%), MDaemon \u2014 0.57% (0.73%), Microsoft Exchange \u2014 0.32% (0.42%). Schimb\u0103rile principale:  <\/p>\n<ul>\n<li class=\"l\"> A fost anun\u021bat\u0103 suportul stabil pentru modul de procesare a cozii de mesaje fast-ramp, care permite accelerarea ini\u021bierii livr\u0103rii mesajelor \u00een cazul unei cozi mari de trimitere \u0219i a unui num\u0103r considerabil de mesaje trimise c\u0103tre gazde obi\u0219nuite, de exemplu, \u00een timpul trimiterii unui num\u0103r mare de mesaje c\u0103tre furnizori de email mari sau trimiterea printr-un agent de transfer de mesaje (smarthost). Dac\u0103 modul este activat prin op\u021biunea \u00abqueue_fast_ramp\u00bb iar procesarea \u00een dou\u0103 etape a cozii (\u00ab-qq\u00bb) identific\u0103 o por\u021biune mare de mesaje adresate unui anumit server de email, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-shicago\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2902\">server<\/a>, livrarea pentru aceast\u0103 gazd\u0103 va fi \u00eenceput\u0103 f\u0103r\u0103 \u00eent\u00e2rziere.\n<li class=\"l\"> A fost stabilizat\u0103 o implementare alternativ\u0103 a mecanismului SRS (Sender Rewriting Scheme) \u2014 \u00abSRS_NATIVE\u00bb, care nu necesit\u0103 dependen\u021be externe (vechea implementare experimental\u0103 necesita instalarea bibliotecii libsrs_alt). SRS permite rescrierea adresei expeditorului \u00een timpul redirec\u021bion\u0103rii f\u0103r\u0103 a \u00eenc\u0103lca verific\u0103rile SPF (Sender Policy Framework) \u0219i asigur\u0103 p\u0103strarea datelor expeditorului pentru a redirec\u021biona <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-prohoster\/\"   title=\"serverul\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3022\">serverul<\/a> mesajele \u00een caz de eroare la livrare. Esen\u021ba metodei este c\u0103, \u00een timpul stabilirii conexiunii, sunt transmise informa\u021bii despre identitatea cu expeditorul ini\u021bial, de exemplu, la rescrierea alice@example.org pe alice@example.com va fi indicat \u00abSRS0=HHH=TT=example.org=alice@example.com\u00bb. SRS este relevant, de exemplu, \u00een organizarea func\u021bion\u0103rii listelor de distribu\u021bie, \u00een care mesajul ini\u021bial este redirec\u021bionat c\u0103tre al\u021bi destinatari.\n<li class=\"l\"> A fost stabilizat\u0103 op\u021biunea TLS_RESUME, care asigur\u0103 posibilitatea de a relua o conexiune TLS \u00eentrerupt\u0103 anterior.\n<li class=\"l\"> A fost stabilizat suportul pentru baza de date \u00eencorporat\u0103 compact\u0103 \u0219i performant\u0103 LMDB, care stocheaz\u0103 datele \u00een format cheie-valoare. Sunt acceptate doar interog\u0103rile lookup din bazele de date existente pentru o singur\u0103 cheie (\u00eenregistrarea din exim \u00een LMDB nu este implementat\u0103). De exemplu, pentru verificarea domeniului expeditorului \u00een reguli, se poate folosi o interogare de tip \u00ab${lookup{$sender_address_domain}lmdb{\/var\/lib\/spamdb\/stopdomains.mdb}}\u00bb.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 op\u021biunea \u00abmessage_linelength_limit\u00bb pentru a stabili o limit\u0103 asupra num\u0103rului de caractere dintr-o linie.\n<li class=\"l\"> A fost oferit\u0103 posibilitatea de a ignora cache-ul \u00een timpul execut\u0103rii cererilor de lookup.\n<li class=\"l\"> Pentru transportul appendfile, a fost implementat\u0103 verificarea cotelor \u00een timpul primirii mesajului (\u0219edin\u021ba SMTP).\n<li class=\"l\"> \u00cen cererile lookup c\u0103tre SQLite a fost ad\u0103ugat\u0103 suportul pentru op\u021biunea &#171;file=&lt;path&gt;&#187;, care permite specificarea unui fi\u0219ier DB pentru o opera\u021biune specific\u0103 f\u0103r\u0103 a men\u021biona prefixele \u00een \u0219irul comenzii SQL.\n<li class=\"l\"> \u00cen cererile lookup c\u0103tre Lsearch a fost ad\u0103ugat\u0103 suportul pentru op\u021biunea &#171;ret=full&#187; pentru a returna \u00eentregul bloc de date corespunz\u0103tor cheii, nu doar prima linie.\n<li class=\"l\"> Stabilirea conexiunilor TLS a fost accelerat\u0103 prin pre\u00eenc\u0103rcarea \u0219i cache-ul informa\u021biilor (de exemplu, certificate) \u00een locul \u00eenc\u0103rc\u0103rii lor \u00eenainte de a \u00eencepe procesarea fiec\u0103rei conexiuni.\n<li class=\"l\"> A fost ad\u0103ugat parameterul &#171;proxy_protocol_timeout&#187; pentru configurarea timeout-ului pentru protocolul Proxy.\n<li class=\"l\"> A fost ad\u0103ugat parameterul &#171;smtp_backlog_monitor&#187; pentru a activa \u00eenregistrarea \u00een jurnal a informa\u021biilor despre dimensiunea cozii de conexiuni a\u0219tept\u0103toare (backlog).\n<li class=\"l\"> A fost ad\u0103ugat parameterul &#171;hosts_require_helo&#187;, care interzice transmiterea comenzii MAIL dac\u0103 anterior nu a fost trimis\u0103 comanda HELO sau EHLO.\n<li class=\"l\"> A fost ad\u0103ugat parameterul &#171;allow_insecure_tainted_data&#187;, care, atunci c\u00e2nd este specificat, va genera un avertisment \u00een loc de o eroare \u00een cazul \u00een care caracteristicile speciale nesecurizate din date sunt exprimate.\n<li class=\"l\"> Suportul pentru platforma macOS a fost \u00eentrerupt (fi\u0219ierele de build au fost mutate \u00een categoria unsupported).<br \/>\n<br \/>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55882\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\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 4.95, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043d\u0435\u0441\u0435\u043d\u044b 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