{"id":8139,"date":"2026-10-12T13:04:09","date_gmt":"2026-10-12T11:04:09","guid":{"rendered":"https:\/\/eu.klytic.com\/?page_id=8139"},"modified":"2026-10-13T13:33:20","modified_gmt":"2026-10-13T11:33:20","slug":"ugradeni-filtar-ili-sigurnosni-pristupnik","status":"publish","type":"page","link":"https:\/\/eu.klytic.com\/hr\/ugradeni-filtar-ili-sigurnosni-pristupnik\/","title":{"rendered":"Ugra\u0111eni filtar ili sigurnosni pristupnik ispred e-po\u0161te"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"8139\" class=\"elementor elementor-8139 elementor-6300\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c699048 e-con-full kly-g e-flex e-con e-parent\" data-id=\"c699048\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-2793a7c e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"2793a7c\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-9f0a029 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"9f0a029\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-29c80e3 elementor-widget elementor-widget-text-editor\" data-id=\"29c80e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-crumb\"><a href=\"\/hr\/\">Po\u010detna<\/a><span>\u203a<\/span><a href=\"\/hr\/vodici\/\">Vodi\u010di<\/a><span>\u203a<\/span><a href=\"\/hr\/vodici\/sigurnost-e-poste\/\">Sigurnost e-po\u0161te<\/a><\/p><p class=\"kly-g-pill\" style=\"--pill:#f87171\">Sigurnost e-po\u0161te \u00b7 Razumjeti<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-efee37b elementor-widget elementor-widget-heading\" data-id=\"efee37b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Ugra\u0111eni filtar ili sigurnosni pristupnik ispred e-po\u0161te<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffa039c elementor-widget elementor-widget-text-editor\" data-id=\"ffa039c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-lead\">Filtar uklju\u010den u sustav e-po\u0161te \u0161titi upravo taj sustav. Sigurnosni pristupnik postavlja se ispred njega: MX domene upu\u0107uje na njega, on prima po\u0161tu, analizira je i zatim isporu\u010duje poslu\u017eitelju sandu\u010di\u0107a, kakav god on bio. Stvarna razlika le\u017ei u trenutku analize: prije nego \u0161to poruka u\u0111e u sandu\u010di\u0107 ili nakon toga.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-deeec11 elementor-widget elementor-widget-text-editor\" data-id=\"deeec11\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-meta\"><span>A\u017eurirano u <b>listopadu 2026.<\/b><\/span><span><b>7 min<\/b> \u010ditanja<\/span><span>Navedeni slu\u017ebeni izvori<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-00d7795 e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"00d7795\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-a49ada8 e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"a49ada8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6c4c314 elementor-widget elementor-widget-text-editor\" data-id=\"6c4c314\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Dva mogu\u0107a mjesta za filtar<\/h2><p>Svaki poslovni sustav e-po\u0161te ve\u0107 filtrira po\u0161tu. Microsoft 365, Google Workspace, poslu\u017eitelj Exchange ili poslu\u017eitelj na hostingu imaju ugra\u0111enu za\u0161titu od ne\u017eeljene po\u0161te i antivirusnu za\u0161titu. Taj je filtar izra\u0111en za platformu na kojoj radi: njegova pravila, izvje\u0161\u0107a i zapisnici \u017eive u toj platformi i odlaze s njom onoga dana kada promijenite pru\u017eatelja.<\/p><div class=\"kly-def\"><p><strong>SMTP pristupnik.<\/strong> Poslu\u017eitelj e-po\u0161te postavljen ispred sandu\u010di\u0107a. RFC 5321, koji opisuje prijenos po\u0161te na internetu, \u201eagentom za prijenos\u201c (MTA) naziva poslu\u017eitelj koji prima poruku i prenosi je dalje. MX zapis domene upu\u0107uje na pristupnik: njega dakle poslu\u017eitelji po\u0161iljatelji kontaktiraju prvog.<\/p><\/div><p>Nakon analize pristupnik predaje poruku poslu\u017eitelju sandu\u010di\u0107a. Korisnici ga ne vide. Zadr\u017eavaju svoj klijent e-po\u0161te, web-po\u0161tu i telefon.<\/p><p>Prakti\u010dna posljedica: pristupnik ne ovisi o sandu\u010di\u0107u. Mo\u017eete promijeniti poslu\u017eitelj e-po\u0161te bez promjene filtra ili poja\u010dati filtar bez promjene poslu\u017eitelja. To su dvije zasebne nabave o kojima se odlu\u010duje odvojeno.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7182d9a elementor-widget elementor-widget-text-editor\" data-id=\"7182d9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Prije ili nakon isporuke<\/h2><p>Filtar mo\u017ee djelovati u dva trenutka, a izbor nije neutralan.<\/p><ul><li><strong>Prije isporuke.<\/strong> Poruka se analizira dok je u prolazu. Ako se ocijeni opasnom, ne ulazi u sandu\u010di\u0107. Zara\u017eeni privitak mo\u017ee se ukloniti i zamijeniti obavije\u0161\u0107u. Sumnjiva poruka odlazi u karantenu umjesto da bude isporu\u010dena.<\/li><li><strong>Nakon isporuke.<\/strong> Poruka je ve\u0107 u sandu\u010di\u0107u kada analiza donese zaklju\u010dak ili kada stigne nova informacija, primjerice poveznica prijavljena nekoliko sati kasnije. Alat je tada mora uklanjati. U me\u0111uvremenu korisnik ju je mo\u017eda otvorio, kliknuo ili proslijedio privitak.<\/li><\/ul><p>Ta se dva pristupa \u010desto kombiniraju: analiza prije sandu\u010di\u0107a, a zatim za\u0161tita koja se nastavlja u trenutku klika, jer stranica koja je pri primitku bila \u010dista kasnije mo\u017ee postati zlonamjerna. Nijedan ne tvrdi da zaustavlja sve.<\/p><p>Klytic postavlja analizu prije sandu\u010di\u0107a iz jednostavnog razloga: ono \u0161to nije isporu\u010deno ne treba naknadno uklanjati. To ne zamjenjuje ljudski refleks kada uvjerljiva poruka pro\u0111e sve provjere, kao kod <a href='\/hr\/lazno-predstavljanje-prijevara-lazni-direktor\/'>prijevare s la\u017enim direktorom<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24d66d6 elementor-widget elementor-widget-text-editor\" data-id=\"24d66d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Za\u0161to postaviti sigurnosni MTA ispred poslu\u017eitelja<\/h2><ul><li><strong>Alat kojemu je to posao.<\/strong> Pristupnik ne upravlja ni kalendarom ni pohranom. Njegova se pravila odnose na po\u0161iljatelja, sadr\u017eaj i privitke, a postavljaju se domenu po domenu.<\/li><li><strong>Za\u0161tita koja ostaje.<\/strong> Pre\u017eivljava promjenu poslu\u017eitelja sandu\u010di\u0107a i mo\u017ee istodobno pokrivati vi\u0161e poslu\u017eitelja: ovisno dru\u0161tvo, stariji sustav e-po\u0161te, novu platformu.<\/li><li><strong>Odluka \u010ditljiva na jednom mjestu.<\/strong> Svaka poruka nosi razlog odluke, bez obzira na poslu\u017eitelj koji je zatim prima.<\/li><li><strong>Drugo mi\u0161ljenje.<\/strong> Ugra\u0111eni filtar sustava e-po\u0161te i dalje radi iza pristupnika.<\/li><\/ul><p>\u0160to to stoji: jedan posrednik vi\u0161e na putu. Treba ga prijaviti poslu\u017eitelju sandu\u010di\u0107a, ina\u010de on vidi svu po\u0161tu kako dolazi s jedne adrese i lo\u0161e ocjenjuje stvarnog po\u0161iljatelja. Treba i ponovno pregledati SPF, DKIM i DMARC. Stranica <a href='\/hr\/zastita-postojece-e-poste\/'>Za\u0161titite e-po\u0161tu koju ve\u0107 imate<\/a> opisuje te postavke.<\/p><h3>To se ti\u010de svih<\/h3><p>Prema francuskoj nacionalnoj agenciji za kiberneti\u010dku sigurnost ANSSI, e-po\u0161ta je \u201eglavni vektor zaraze radne stanice\u201c, a sustavi e-po\u0161te su \u201ejedan od glavnih vektora napada jer se vrlo \u0161iroko koriste i izlo\u017eeni su internetu\u201c. Phishing, zara\u017eeni privitak, la\u017eni nalog za pla\u0107anje: dovoljna je adresa e-po\u0161te da biste postali meta, a mikropoduze\u0107e je meta jednako kao i velika grupa.<\/p><p>ANSSI za\u0161titu e-po\u0161te ubraja u svojih deset zlatnih pravila digitalne sigurnosti, a njezin referentni okvir mjera preporu\u010duje uvo\u0111enje rje\u0161enja za za\u0161titu od ne\u017eeljene po\u0161te i phishinga. Njezin vodi\u010d o povezivanju informacijskog sustava s internetom podsje\u0107a da je poslovna upotreba e-po\u0161te vrlo ra\u0161irena \u201ebez obzira na veli\u010dinu i djelatnost subjekta\u201c te da se mehanizmi za\u0161tite od ne\u017eeljene po\u0161te i pretra\u017eivanja zlonamjernog sadr\u017eaja \u201emoraju provesti\u201c.<\/p><p>Sigurnosno filtriranje po\u0161te stoga vi\u0161e nije opcija. Stvarno je pitanje gdje se postavlja i \u0161to mo\u017ee zaustaviti prije nego \u0161to poruka stigne u sandu\u010di\u0107.<\/p><p class=\"kly-fit yes\">Pristupnik filtru sustava e-po\u0161te dodaje analizu koja ne ovisi o proizvo\u0111a\u010du va\u0161ih sandu\u010di\u0107a, istu politiku za vi\u0161e poslu\u017eitelja ili vi\u0161e dru\u0161tava i odluke koje se mogu objasniti.<\/p><p class=\"kly-fit no\">Nijedan filtar, ugra\u0111en ili postavljen ispred, ne zamjenjuje reflekse na koje podsje\u0107a ANSSI: ne klikati na sumnjivu poveznicu ili privitak, ne odgovarati na sumnjivu poruku, provjeriti drugim kanalom, uklju\u010diti dvofaktorsku autentifikaciju.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aee88e1 elementor-widget elementor-widget-text-editor\" data-id=\"aee88e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>\u0160to pristupnik vidi, a \u0161to \u010duva<\/h2><p>Kako bi odlu\u010dio, pristupnik \u010dita cijelu poruku: navedenog po\u0161iljatelja i poslu\u017eitelj koji je \u0161alje, rezultate autentifikacije (SPF, DKIM, DMARC), tekst, poveznice, privitke. Iz toga donosi odluku: isporu\u010diti, staviti u karantenu, odbiti ili odgoditi nepoznatog po\u0161iljatelja.<\/p><p>\u010citati ne zna\u010di \u010duvati. Pravo pitanje za pru\u017eatelja glasi: \u0161to ostaje i koliko dugo? Za Klytic MTA odgovor razlikuje tri slu\u010daja, uz trag odluke.<\/p><div class=\"kly-table\"><table><thead><tr><th>Situacija<\/th><th>\u0160to se \u010duva<\/th><th>Rok<\/th><\/tr><\/thead><tbody><tr><td>Uobi\u010dajena isporuka<\/td><td>Osobni podaci analize (po\u0161iljatelj, primatelji, predmet, tijelo, nazivi privitaka) se bri\u0161u. Ostaju vremenska oznaka, domena po\u0161iljatelja, ocjene i odluka.<\/td><td>Brisanje nakon 2 dana prema zadanim postavkama, rok se mo\u017ee prilagoditi<\/td><\/tr><tr><td>Opasna poruka u karanteni<\/td><td>Cijela poruka, \u0161ifrirana<\/td><td>Dok vrijedi poveznica za pu\u0161tanje, 7 dana<\/td><\/tr><tr><td>Poslu\u017eitelj sandu\u010di\u0107a nedostupan<\/td><td>Poruka, \u0161ifrirana (AES-256-GCM), u redu \u010dekanja<\/td><td>Do isporuke ili isteka roka<\/td><\/tr><tr><td>Sve odluke<\/td><td>Ocjena i razlog, bez sadr\u017eaja<\/td><td>Tehni\u010dki podaci koji se \u010duvaju za statistiku<\/td><\/tr><\/tbody><\/table><\/div><p>\u201eBez pohrane poruka pri uobi\u010dajenom radu\u201c dakle zna\u010di: nema trajne kopije isporu\u010dene po\u0161te. To nije \u201enula podataka\u201c. Pristupnik \u010duva trag svojih odluka, a nekoliko dana i detalje analize. Rokovi su detaljno opisani u <a href='\/hr\/sigurnosni-zapisnici-e-poste\/'>\u010cuvati i pregledavati sigurnosne zapisnike e-po\u0161te<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99f6be8 elementor-widget elementor-widget-text-editor\" data-id=\"99f6be8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Put po\u0161te, korak po korak<\/h2><ol><li>Poslu\u017eitelj po\u0161iljatelj tra\u017ei MX va\u0161e domene. Pronalazi pristupnik i predaje mu poruku.<\/li><li>Pristupnik provjerava po\u0161iljatelja (autentifikacija, reputacija), poruku (poveznice, tekst, poznati scenarij), a zatim privitke.<\/li><li>Ispravna poruka: isporu\u010duje je va\u0161em sustavu e-po\u0161te, kakav god on bio: Microsoft 365, Google Workspace, Exchange, Klytic Mail ili drugi poslu\u017eitelj.<\/li><li>Opasna poruka: odlazi u \u0161ifriranu karantenu. Primatelj je obavije\u0161ten i mo\u017ee je pustiti putem poveznice ako je rije\u010d o pogre\u0161ci.<\/li><li>Odbijena poruka: poslu\u017eitelj po\u0161iljatelj prima odbijenicu i obavje\u0161tava svojeg korisnika.<\/li><li>Va\u0161 poslu\u017eitelj sandu\u010di\u0107a ne odgovara: poruka \u010deka, \u0161ifrirana, a zatim se isporu\u010duje \u010dim se poslu\u017eitelj vrati.<\/li><\/ol><p>Taj se put temelji na uobi\u010dajenom pona\u0161anju SMTP-a: poslu\u017eitelj koji primi privremenu pogre\u0161ku zadr\u017eava poruku i poku\u0161ava ponovno. Vodi\u010d <a href='\/hr\/migracija-e-poste-bez-prekida\/'>migrirati e-po\u0161tu bez prekida<\/a> obja\u0161njava za\u0161to taj mehanizam sprje\u010dava gubitak po\u0161te tijekom promjene MX zapisa.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8720f40 elementor-widget elementor-widget-text-editor\" data-id=\"8720f40\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>\u010cesta pitanja<\/h2><h3>Treba li malom poduze\u0107u sigurnosno filtriranje?<\/h3><p>Treba. Napadi e-po\u0161tom ne biraju metu prema veli\u010dini. Pristupnik je na\u010din da se to filtriranje uvede bez promjene sustava e-po\u0161te: pogledajte <a href='\/hr\/zastita-postojece-e-poste\/'>Za\u0161titite e-po\u0161tu koju ve\u0107 imate<\/a>.<\/p><h3>Zamjenjuje li pristupnik filtar Microsoft 365 ili Google Workspacea?<\/h3><p>Ne zamjenjuje. Ugra\u0111eni filtar i dalje radi iza njega. Proizvo\u0111a\u010di opisuju kako prijaviti pristupnik da bi njihova vlastita analiza ostala to\u010dna: pogledajte <a href='\/hr\/zastita-postojece-e-poste\/'>Za\u0161titite e-po\u0161tu koju ve\u0107 imate<\/a>.<\/p><h3>Usporava li pristupnik po\u0161tu?<\/h3><p>Analiza dodaje jedan korak. Vidljiv slu\u010daj je namjeran: nepoznati po\u0161iljatelj mo\u017ee biti kratko odgo\u0111en, \u010dime se odbacuju automatizirana slanja koja nikada ne poku\u0161avaju ponovno.<\/p><h3>Mo\u017ee li se promijeniti sustav e-po\u0161te uz zadr\u017eavanje pristupnika?<\/h3><p>Mo\u017ee. MX i dalje upu\u0107uje na pristupnik; mijenja se samo poslu\u017eitelj za isporuku. Tijek prelaska opisan je u <a href='\/hr\/migracija-e-poste-bez-prekida\/'>migrirati e-po\u0161tu bez prekida<\/a>.<\/p><h3>\u0160to biva s porukom pogre\u0161no izdvojenom?<\/h3><p>Nalazi se u karanteni, nije izbrisana. Pogledajte <a href='\/hr\/karantena-lazno-pozitivni-prijave\/'>Karantena, la\u017eno pozitivni rezultati i prijave<\/a>.<\/p><h3>Koja je razlika u odnosu na namjensku e-po\u0161tu ili e-po\u0161tu instaliranu kod vas?<\/h3><p>To je pitanje sandu\u010di\u0107a, a ne filtra. Obra\u0111eno je u <a href='\/hr\/e-posta-u-oblaku-namjenska-ili-lokalna\/'>E-po\u0161ta u oblaku, namjenska e-po\u0161ta ili e-po\u0161ta u va\u0161im prostorima<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a1e885 kly-g-klytic elementor-widget elementor-widget-text-editor\" data-id=\"7a1e885\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Gdje se nalazi Klytic<\/h2><p><a href='\/hr\/klytic-mta\/'>Klytic MTA<\/a> je pristupnik te vrste. Ugovara se samostalno, bez Klytic Mail, i isporu\u010duje u Klytic Mail, Microsoft 365, Google Workspace, Exchange ili bilo koji drugi poslu\u017eitelj e-po\u0161te.<\/p><ul><li><strong>Essential<\/strong>: autentifikacija i reputacija (SPF, DKIM, DMARC, uklju\u010duju\u0107i proslije\u0111ene poruke, starost domena, crne liste), za\u0161tita od ne\u017eeljene po\u0161te, antivirusna za\u0161tita, za\u0161tita od phishinga, sli\u010dne domene i prikazno ime, zara\u017eene makronaredbe i PDF-ovi, \u0161ifrirana karantena i pu\u0161tanje, DKIM potpisivanje odlazne po\u0161te, opoziv prije slanja, S\/MIME potpisivanje odlazne po\u0161te za sustav e-po\u0161te koji to ne podr\u017eava, ako ga klijent uklju\u010di i povjeri svoj klju\u010d (isporuka certifikata je opcija), odlu\u010divanje uz pomo\u0107 UI-ja o dvosmislenim porukama, ocjena i razlog u zaglavljima.<\/li><li><strong>Advanced<\/strong>: sve iz paketa Essential, uz prijevaru s la\u017enim direktorom i financijske prijevare, poveznice ponovno analizirane u trenutku klika, zara\u017eene HTML datoteke, DMARC konzolu i zapisnike koji se mogu izvesti u SIEM.<\/li><\/ul><p>Usluga se implementira u oblaku Klytic, na namjenskoj instanci ili na va\u0161im poslu\u017eiteljima. Oblak Klytic smje\u0161ten je u bilo kojem zemljopisnom podru\u010dju koje odgovara mjerodavnoj jurisdikciji, ovisno o dostupnosti usluga, osobito u Europi ili na Mauricijusu. Pu\u0161tanje u rad uglavnom traje 24 do 48 sati: Klytic priprema konfiguraciju, a zatim vi mijenjate MX svoje domene ili to Klytic \u010dini umjesto vas.<\/p><p>\u0160to Klytic MTA ne radi: ne zamjenjuje va\u0161 sustav e-po\u0161te, njegove ra\u010dune ni prava i vidi samo po\u0161tu koja kroz njega prolazi. Za Microsoft 365 i druge sustave e-po\u0161te pogledajte <a href='\/hr\/zastita-postojece-e-poste\/'>Za\u0161titite e-po\u0161tu koju ve\u0107 imate<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09d9946 kly-g-disclaimer elementor-widget elementor-widget-text-editor\" data-id=\"09d9946\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Ova stranica opisuje op\u0107u arhitekturu. To\u010dna postavka ovisi o va\u0161em sustavu e-po\u0161te i va\u0161im domenama.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eab8c06 kly-g-sources elementor-widget elementor-widget-text-editor\" data-id=\"eab8c06\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Izvori<\/h2><p>Pregledano u listopadu 2026.<\/p><ul><li>RFC 5321, Simple Mail Transfer Protocol: SMTP poslu\u017eitelji djeluju kao agenti za prijenos (MTA); posredni\u010dki hostovi op\u0107enito se odre\u0111uju MX zapisom u DNS-u. <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc5321' rel='noopener' target='_blank'>rfc-editor.org<\/a><\/li><li>Klytic, stranica Klytic MTA: moduli paketa Essential i Advanced, opcije, na\u010dini implementacije, pu\u0161tanje u rad putem MX zapisa, \u010duvanje poruka ograni\u010deno na red \u010dekanja i karantenu. <a href='https:\/\/www.klytic.com\/klytic-mta\/' rel='noopener' target='_blank'>klytic.com<\/a><\/li><li>ANSSI, \u201e10 r\u00e8gles d\u2019or en mati\u00e8re de s\u00e9curit\u00e9 num\u00e9rique\u201c: 6. pravilo, \u201eZa\u0161titite svoju e-po\u0161tu\u201c, opisuje phishing i preporu\u010duje oprez prema sumnjivim poveznicama i privicima, provjeru drugim kanalom i uklju\u010divanje dvofaktorske autentifikacije. <a href='https:\/\/cyber.gouv.fr\/securisation\/10-regles-or-securite-numerique\/' rel='noopener' target='_blank'>cyber.gouv.fr<\/a><\/li><li>ANSSI, \u201eGuide d\u2019hygi\u00e8ne informatique\u201c, verzija 2.0, rujan 2017., mjera 24 \u201eZa\u0161tititi svoju poslovnu e-po\u0161tu\u201c: \u201eE-po\u0161ta je glavni vektor zaraze radne stanice\u201c. <a href='https:\/\/messervices.cyber.gouv.fr\/documents-guides\/guide_hygiene_informatique_anssi.pdf' rel='noopener' target='_blank'>messervices.cyber.gouv.fr<\/a><\/li><li>ANSSI, MonServiceS\u00e9curis\u00e9, referentni okvir mjera, mjera \u201eUvesti rje\u0161enje za za\u0161titu od ne\u017eeljene po\u0161te i phishinga\u201c: \u201eSustavi e-po\u0161te jedan su od glavnih vektora napada jer se vrlo \u0161iroko koriste i izlo\u017eeni su internetu\u201c. <a href='https:\/\/monservicesecurise.cyber.gouv.fr\/referentiel-mesures' rel='noopener' target='_blank'>monservicesecurise.cyber.gouv.fr<\/a><\/li><li>ANSSI, \u201eRecommandations relatives \u00e0 l\u2019interconnexion d\u2019un syst\u00e8me d\u2019information \u00e0 Internet\u201c, ANSSI-PA-066, verzija 3.0, 19. lipnja 2020., poglavlje 5 \u201eZa\u0161tita usluge e-po\u0161te\u201c: e-po\u0161ta \u201epostala je jedan od glavnih vektora informati\u010dkih napada\u201c (phishing, zlonamjerni privici); \u00a7 5.2.3, mehanizmi za\u0161tite od ne\u017eeljene po\u0161te i pretra\u017eivanja zlonamjernog sadr\u017eaja \u201emoraju se provesti\u201c. <a href='https:\/\/messervices.cyber.gouv.fr\/guides\/recommandations-relatives-linterconnexion-dun-si-internet' rel='noopener' target='_blank'>messervices.cyber.gouv.fr<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-75e4de5 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"75e4de5\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-57c0247 elementor-widget elementor-widget-html\" data-id=\"57c0247\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"html.default\">\n\t\t\t\t\t<nav class=\"kly-g-toc\" aria-label=\"Na ovoj stranici\"><p>Na ovoj stranici<\/p><ol><\/ol><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0164158 elementor-widget elementor-widget-text-editor\" data-id=\"0164158\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"kly-g-cta\"><h3>Postavite pristupnik ispred svoje e-po\u0161te<\/h3><p>Besplatno isprobavanje 30 dana, bez promjene sustava e-po\u0161te.<\/p><p><a class=\"kly-g-btn\" href=\"\/hr\/kontakt\/\">Razgovarajte sa savjetnikom \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/hr\/klytic-mta\/\">Upoznajte Klytic MTA<\/a><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-539fada e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"539fada\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1dfbdf elementor-widget elementor-widget-text-editor\" data-id=\"a1dfbdf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Pro\u010ditajte i<\/h2><div class=\"kly-g-grid\"><a class=\"kly-g-card\" href=\"\/hr\/zastita-postojece-e-poste\/\" style=\"--cat:#dc2626\"><span class=\"c\">Razumjeti \u00b7 Sigurnost e-po\u0161te<\/span><span class=\"t\">Za\u0161titite e-po\u0161tu koju ve\u0107 imate<\/span><span class=\"q\">Microsoft 365, Google Workspace, Exchange: sigurnosni pristupnik mo\u017ee se dodati bez promjene sustava e-po\u0161te. \u0160to se mijenja, tko to postavlja i ograni\u010denja.<\/span><span class=\"m\"><span>7 min \u010ditanja<\/span><b>Pro\u010ditajte \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/hr\/nezeljena-posta-phishing-kompromitirani-racun\/\" style=\"--cat:#dc2626\"><span class=\"c\">Razumjeti \u00b7 Sigurnost e-po\u0161te<\/span><span class=\"t\">Ne\u017eeljena po\u0161ta, phishing, zlonamjerni softver i kompromitirani ra\u010dun<\/span><span class=\"q\">\u010cetiri prijetnje dolaze na ista vrata, a ne rje\u0161avaju se jednako. \u0160to odaje svaku, \u0161to je zaustavlja i za\u0161to sam antispam vi\u0161e nije dovoljan.<\/span><span class=\"m\"><span>6 min \u010ditanja<\/span><b>Pro\u010ditajte \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/hr\/karantena-lazno-pozitivni-prijave\/\" style=\"--cat:#dc2626\"><span class=\"c\">Koristiti \u00b7 Sigurnost e-po\u0161te<\/span><span class=\"t\">Karantena, la\u017eno pozitivni rezultati i prijave<\/span><span class=\"q\">\u0160to biva s porukom koju je zadr\u017eao Klytic MTA, kako je pustiti, ispraviti la\u017eno pozitivan rezultat i prijaviti zlonamjernu poruku.<\/span><span class=\"m\"><span>6 min \u010ditanja<\/span><b>Pro\u010ditajte \u2192<\/b><\/span><\/a><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-539316dd e-con e-atomic-element e-div-block-base e-default-div e-c9fd865-4a50 \" data-id=\"539316dd\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"539316dd\" data-e-type=\"e-div-block\" data-id=\"539316dd\">\n    <div class=\"elementor-element elementor-element-4f79afcb e-con e-atomic-element e-div-block-base e-default-div e-4fa9fe-ce86 \" data-id=\"4f79afcb\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"4f79afcb\" data-e-type=\"e-div-block\" data-id=\"4f79afcb\">\n    \t\t\t<p class=\"e-4dcf5c70-2ec7 e-paragraph-base e-default-p\" data-interaction-id=\"330a7a35\" data-e-type=\"widget\" data-id=\"330a7a35\">Ponuda dobrodo\u0161lice<\/p>\n\t\t\t\t\t<h2 data-interaction-id=\"56f1f7d5\" class=\"e-347faa43-4e20 e-heading-base e-default-h2\" data-e-type=\"widget\" data-id=\"56f1f7d5\">30 dana besplatne probe, migracija uz podr\u0161ku<\/h2>\n\t\t\t\t\t<p class=\"e-7f6310da-1caa e-paragraph-base e-default-p\" data-interaction-id=\"2ce27288\" data-e-type=\"widget\" data-id=\"2ce27288\">Probna ponuda bez obveze. Savjetnik \u0107e Vas nazvati kako bi razumio Va\u0161e potrebe i pripremio Va\u0161 Klytic prostor.<\/p>\n\t\t<div class=\"elementor-element elementor-element-35ea29a1 e-con e-atomic-element e-div-block-base e-default-div e-1cd48b22-e6da \" data-id=\"35ea29a1\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"35ea29a1\" data-e-type=\"e-div-block\" data-id=\"35ea29a1\">\n    \t\t\t<a href=\"\/essai-gratuit\/\" target=\"_self\" class=\"e-4a7886e3-652d e-button-base e-default-a\" data-interaction-id=\"19bfa8f1\" data-e-type=\"widget\" data-id=\"19bfa8f1\">\n\t\ud83d\ude80 Zapo\u010dnite besplatnu probu\n<\/a>\n\t\t\t\t\t<a href=\"\/tarifs\/\" target=\"_self\" class=\"e-137e863d-dd0d e-button-base e-default-a\" data-interaction-id=\"326d82ab\" data-e-type=\"widget\" data-id=\"326d82ab\">\n\tPogledajte cijene\n<\/a>\n\t\t\n<\/div>\n\n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_seopress_titles_title":"Ugra\u0111eni filtar ili sigurnosni pristupnik e-po\u0161te | Klytic","_seopress_titles_desc":"Filtar uklju\u010den u sustav e-po\u0161te ili SMTP pristupnik ispred njega: analiza prije ili nakon sandu\u010di\u0107a, put po\u0161te i \u0161to pristupnik \u010duva.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"Ugra\u0111eni filtar ili sigurnosni pristupnik e-po\u0161te | Klytic","_seopress_social_fb_desc":"Filtar uklju\u010den u sustav e-po\u0161te ili SMTP pristupnik ispred njega: analiza prije ili nakon sandu\u010di\u0107a, put po\u0161te i \u0161to pristupnik \u010duva.","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"Ugra\u0111eni filtar ili sigurnosni pristupnik e-po\u0161te | Klytic","_seopress_social_twitter_desc":"Filtar uklju\u010den u sustav e-po\u0161te ili SMTP pristupnik ispred njega: analiza prije ili nakon sandu\u010di\u0107a, put po\u0161te i \u0161to pristupnik \u010duva.","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"class_list":["post-8139","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/pages\/8139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/comments?post=8139"}],"version-history":[{"count":0,"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/pages\/8139\/revisions"}],"wp:attachment":[{"href":"https:\/\/eu.klytic.com\/hr\/wp-json\/wp\/v2\/media?parent=8139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}