{"id":7460,"date":"2026-10-12T13:04:03","date_gmt":"2026-10-12T11:04:03","guid":{"rendered":"https:\/\/eu.klytic.com\/bezpecnostni-protokoly-e-mailu\/"},"modified":"2026-10-12T16:14:12","modified_gmt":"2026-10-12T14:14:12","slug":"bezpecnostni-protokoly-e-mailu","status":"publish","type":"page","link":"https:\/\/eu.klytic.com\/cs\/bezpecnostni-protokoly-e-mailu\/","title":{"rendered":"Uchov\u00e1v\u00e1n\u00ed a kontrola bezpe\u010dnostn\u00edch protokol\u016f e-mailu"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7460\" class=\"elementor elementor-7460 elementor-6298\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1cad21f e-con-full kly-g e-flex e-con e-parent\" data-id=\"1cad21f\" 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-5f9c3d1 e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"5f9c3d1\" 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-5160222 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"5160222\" 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-698e201 elementor-widget elementor-widget-text-editor\" data-id=\"698e201\" 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=\"\/\">Dom\u016f<\/a><span>\u203a<\/span>P\u0159\u00edru\u010dky<span>\u203a<\/span>Zabezpe\u010den\u00ed e-mail\u016f<\/p><p class=\"kly-g-pill\" style=\"--pill:#f87171\">Zabezpe\u010den\u00ed e-mail\u016f \u00b7 Pochopit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-476a0c4 elementor-widget elementor-widget-heading\" data-id=\"476a0c4\" 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\">Uchov\u00e1v\u00e1n\u00ed a kontrola bezpe\u010dnostn\u00edch protokol\u016f e-mailu<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a32114 elementor-widget elementor-widget-text-editor\" data-id=\"1a32114\" 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\">Protokol filtrov\u00e1n\u00ed \u0159\u00edk\u00e1, co br\u00e1na rozhodla a pro\u010d: nenahrazuje archiv po\u0161ty. V Klytic MTA se osobn\u00ed podrobnosti anal\u00fdzy vyma\u017eou po kr\u00e1tk\u00e9 lh\u016ft\u011b, ve v\u00fdchoz\u00edm nastaven\u00ed po 2 dnech, a rozhodnut\u00ed z\u016fst\u00e1v\u00e1. O del\u0161\u00ed dob\u011b se rozhoduje podle \u00fa\u010delu, v n\u00e1stroji, kter\u00fd p\u0159ij\u00edm\u00e1 export, ne ve v\u00fdchoz\u00edm nastaven\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fba28ee elementor-widget elementor-widget-text-editor\" data-id=\"fba28ee\" 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>Aktualizov\u00e1no: <b>\u0159\u00edjen 2026<\/b><\/span><span><b>6 min<\/b><\/span><span>Citovan\u00e9 ofici\u00e1ln\u00ed zdroje<\/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-144d960 e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"144d960\" 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-a841657 e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"a841657\" 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-142fa17 elementor-widget elementor-widget-text-editor\" data-id=\"142fa17\" 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>K \u010demu slou\u017e\u00ed bezpe\u010dnostn\u00ed protokol e-mailu<\/h2><ul><li><strong>Porozum\u011bt rozhodnut\u00ed.<\/strong> Z\u00e1kazn\u00edk si st\u011b\u017euje, \u017ee zpr\u00e1va nikdy nedorazila: protokol \u0159\u00edk\u00e1, zda byla odm\u00edtnuta, p\u0159esunuta do karant\u00e9ny nebo doru\u010dena, a z jak\u00e9ho d\u016fvodu.<\/li><li><strong>Prok\u00e1zat, \u017ee zpr\u00e1va byla zastavena.<\/strong> Po pokusu o podvod m\u016f\u017ee firma uk\u00e1zat, \u017ee zpr\u00e1va byla zablokov\u00e1na a kdy.<\/li><li><strong>Vy\u0161et\u0159ovat po incidentu.<\/strong> Kdo ve firm\u011b dostal stejnou kampa\u0148? Odkdy tato podobn\u00e1 dom\u00e9na p\u00ed\u0161e?<\/li><li><strong>Nap\u00e1jet SIEM.<\/strong> N\u00e1stroj pro dohled nad bezpe\u010dnost\u00ed porovn\u00e1v\u00e1 rozhodnut\u00ed filtru s p\u0159ihl\u00e1\u0161en\u00edmi, stanicemi a s\u00edt\u00ed.<\/li><\/ul><div class=\"kly-def\"><p><strong>Protokol filtrov\u00e1n\u00ed.<\/strong> Z\u00e1znam rozhodnut\u00ed filtru: datum, dom\u00e9na odes\u00edlatele, sk\u00f3re, d\u016fvod, rozhodnut\u00ed. Nen\u00ed to kopie po\u0161ty. Uchov\u00e1v\u00e1n\u00ed samotn\u00fdch zpr\u00e1v je v\u011bc\u00ed e-mailov\u00e9ho syst\u00e9mu a v p\u0159\u00edpad\u011b pot\u0159eby archivace pro z\u00e1konn\u00e9 \u00fa\u010dely.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79b5674 elementor-widget elementor-widget-text-editor\" data-id=\"79b5674\" 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>Co rozhodnut\u00ed obsahuje<\/h2><p>V Klytic MTA je ka\u017ed\u00e9 rozhodnut\u00ed vysv\u011btleno. Sk\u00f3re a d\u016fvod jsou uvedeny v hlavi\u010dk\u00e1ch doru\u010den\u00e9 zpr\u00e1vy pod n\u00e1zvy specifick\u00fdmi pro Klytic: <em>X-KlyticMTA-Status<\/em> pro rozhodnut\u00ed, <em>X-KlyticMTA-Score<\/em> pro sk\u00f3re, <em>X-KlyticMTA-Reason<\/em> pro d\u016fvod. Administr\u00e1tor si tedy m\u016f\u017ee p\u0159\u00edmo na zpr\u00e1v\u011b p\u0159e\u010d\u00edst, pro\u010d byla doru\u010dena. To plat\u00ed v obou nab\u00eddk\u00e1ch.<\/p><p>Nab\u00eddka Advanced p\u0159id\u00e1v\u00e1 protokoly prezentovan\u00e9 jako odpov\u00eddaj\u00edc\u00ed r\u00e1mc\u016fm CIS a NIST, exportovateln\u00e9 do va\u0161eho SIEM. Rozd\u00edl mezi ob\u011bma nab\u00eddkami je tedy jasn\u00fd:<\/p><ul><li><strong>Essential<\/strong>: rozhodnut\u00ed je vysv\u011btleno, zpr\u00e1vu po zpr\u00e1v\u011b, v hlavi\u010dk\u00e1ch.<\/li><li><strong>Advanced<\/strong>: rozhodnut\u00ed nav\u00edc tvo\u0159\u00ed protokol, kter\u00fd m\u016f\u017eete pos\u00edlat do vlastn\u00edho n\u00e1stroje, uchov\u00e1vat ho a porovn\u00e1vat s jin\u00fdmi zdroji.<\/li><\/ul><p>Ka\u017edodenn\u00ed \u010dten\u00ed t\u011bchto rozhodnut\u00ed popisuje praktick\u00fd n\u00e1vod <a href='\/cs\/audit-rozhodnuti-filtru\/'>Jak \u010d\u00edst a exportovat rozhodnut\u00ed filtru<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec10797 elementor-widget elementor-widget-text-editor\" data-id=\"ec10797\" 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>Dvoje hodiny, kter\u00e9 nelze zam\u011b\u0148ovat<\/h2><h3>Technick\u00e9 hodiny filtru<\/h3><p>Jsou zn\u00e1m\u00e9 a stanoven\u00e9 produktem. U Klytic MTA:<\/p><div class=\"kly-table\"><table><thead><tr><th>\u00dadaj<\/th><th>Doba<\/th><\/tr><\/thead><tbody><tr><td>Odes\u00edlatel, p\u0159\u00edjemci, p\u0159edm\u011bt, t\u011blo, n\u00e1zvy p\u0159\u00edloh, po b\u011b\u017en\u00e9m doru\u010den\u00ed<\/td><td>Vymaz\u00e1ny po 2 dnech ve v\u00fdchoz\u00edm nastaven\u00ed; lh\u016ftu lze nastavit<\/td><\/tr><tr><td>\u010casov\u00e9 raz\u00edtko, dom\u00e9na odes\u00edlatele, sk\u00f3re, rozhodnut\u00ed, metadata anal\u00fdzy<\/td><td>Uchov\u00e1ny i po vymaz\u00e1n\u00ed<\/td><\/tr><tr><td>Nebezpe\u010dn\u00e1 zpr\u00e1va v karant\u00e9n\u011b<\/td><td>Kompletn\u00ed a \u0161ifrovan\u00e1 po dobu platnosti odkazu pro uvoln\u011bn\u00ed, 7 dn\u00ed<\/td><\/tr><tr><td>Zpr\u00e1va ve front\u011b (server se schr\u00e1nkami nedostupn\u00fd)<\/td><td>\u0160ifrovan\u00e1 a\u017e do doru\u010den\u00ed nebo vypr\u0161en\u00ed lh\u016fty<\/td><\/tr><\/tbody><\/table><\/div><p>Praktick\u00fd d\u016fsledek: m\u011bs\u00edc po ud\u00e1losti filtr v\u00ed, \u017ee zpr\u00e1va z ur\u010dit\u00e9 dom\u00e9ny byla p\u0159esunuta do karant\u00e9ny, s jak\u00fdm sk\u00f3re a z jak\u00e9ho d\u016fvodu. U\u017e nev\u00ed, kdo ji komu poslal ani co v n\u00ed st\u00e1lo. Pokud kontrola hled\u00e1 obsah, je t\u0159eba ho hledat ve schr\u00e1nce nebo v archivu.<\/p><p>Pozor na \u010dastou z\u00e1m\u011bnu: 30denn\u00ed z\u00e1lohov\u00e1n\u00ed uv\u00e1d\u011bn\u00e9 u schr\u00e1nek Klytic Mail se t\u00fdk\u00e1 schr\u00e1nek, ne protokol\u016f br\u00e1ny. Jsou to dv\u011b slu\u017eby a dv\u011b r\u016fzn\u00e9 doby.<\/p><h3>Hodiny zvolen\u00e9 firmou<\/h3><p>Z\u00e1vis\u00ed na \u00fa\u010delu. \u017d\u00e1dn\u00fd p\u0159edpis nestanov\u00ed jednotnou dobu pro protokol filtrov\u00e1n\u00ed e-mailu. R\u00e1mcem je GDPR: uchov\u00e1v\u00e1 se tak dlouho, jak to \u00fa\u010del od\u016fvod\u0148uje, a dokumentuje se to.<\/p><p>U\u017eite\u010dn\u00fd orienta\u010dn\u00ed bod: pro protokolov\u00e1n\u00ed p\u0159\u00edstup\u016f a operac\u00ed p\u0159i zpracov\u00e1n\u00ed osobn\u00edch \u00fadaj\u016f doporu\u010duje CNIL dobu mezi \u0161esti m\u011bs\u00edci a jedn\u00edm rokem, v n\u011bkter\u00fdch od\u016fvodn\u011bn\u00fdch p\u0159\u00edpadech i del\u0161\u00ed. Toto doporu\u010den\u00ed nen\u00ed z\u00e1vazn\u00e9 a t\u00fdk\u00e1 se p\u0159edev\u0161\u00edm protokol\u016f p\u0159\u00edstup\u016f, ne protokolu filtrov\u00e1n\u00ed. P\u0159ipom\u00edn\u00e1 tak\u00e9, \u017ee protokoly by nem\u011bly uchov\u00e1vat \u00fadaje d\u00e9le, ne\u017e je doba stanoven\u00e1 pro samotn\u00e9 \u00fadaje.<\/p><p>V praxi se dlouh\u00e1 doba uplat\u0148uje na export, ve va\u0161em SIEM: tam stanov\u00edte uchov\u00e1v\u00e1n\u00ed, p\u0159\u00edstup a maz\u00e1n\u00ed. Samotn\u00fd filtr uchov\u00e1v\u00e1 m\u00e1lo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9ea9ce elementor-widget elementor-widget-text-editor\" data-id=\"a9ea9ce\" 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>P\u0159\u00edklad: t\u0159i m\u011bs\u00edce po pokusu o podvod<\/h2><p>Hypotetick\u00fd p\u0159\u00edpad. V lednu dostane n\u011bkolik zam\u011bstnanc\u016f firmy fale\u0161nou zpr\u00e1vu od sv\u00e9ho \u0159editele. V dubnu se poji\u0161\u0165ovna pt\u00e1, co se stalo. Co lze uk\u00e1zat?<\/p><ul><li><strong>Ve filtru<\/strong>: datum, podobnou dom\u00e9nu, ze kter\u00e9 zpr\u00e1va p\u0159i\u0161la, sk\u00f3re, d\u016fvod (podobn\u00e1 dom\u00e9na, zneu\u017eit\u00ed zobrazovan\u00e9ho jm\u00e9na) a rozhodnut\u00ed o karant\u00e9n\u011b u ka\u017ed\u00e9 zpr\u00e1vy. U\u017e ne adresy p\u0159\u00edjemc\u016f ani text, kter\u00e9 byly d\u00e1vno vymaz\u00e1ny.<\/li><li><strong>V SIEM<\/strong>, pokud m\u00e1 firma nab\u00eddku Advanced a uchov\u00e1v\u00e1 export d\u00e9le: tent\u00fd\u017e protokol s t\u00edm, co se firma ve sv\u00e9 politice rozhodla uchov\u00e1vat, porovnan\u00fd s tehdej\u0161\u00edmi p\u0159ihl\u00e1\u0161en\u00edmi.<\/li><li><strong>Ve schr\u00e1nk\u00e1ch<\/strong>: nic, proto\u017ee zpr\u00e1vy byly zastaveny p\u0159edem.<\/li><\/ul><p>D\u016fkaz tedy stoj\u00ed na rozhodnut\u00ed, ne na obsahu. Pokud chce firma uchov\u00e1vat v\u00edc, je to rozhodnut\u00ed, kter\u00e9 je t\u0159eba p\u0159ijmout p\u0159ed incidentem, stanoven\u00edm doby uchov\u00e1v\u00e1n\u00ed exportu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ef1a56 elementor-widget elementor-widget-text-editor\" data-id=\"4ef1a56\" 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>Kdo m\u00e1 k protokol\u016fm p\u0159\u00edstup<\/h2><ul><li><strong>Administr\u00e1tor Klytic MTA<\/strong> \u010dte rozhodnut\u00ed sv\u00fdch dom\u00e9n a v nab\u00eddce Advanced p\u0159ij\u00edm\u00e1 export do SIEM.<\/li><li><strong>U\u017eivatel<\/strong> vid\u00ed svou vlastn\u00ed karant\u00e9nu pomoc\u00ed odkazu, kter\u00fd dostane, a\u0165 m\u00e1 schr\u00e1nku Klytic, nebo ne: viz <a href='\/cs\/karantena-falesne-poplachy\/'>Karant\u00e9na, fale\u0161n\u00e9 poplachy a hl\u00e1\u0161en\u00ed<\/a>.<\/li><li><strong>Ve va\u0161em SIEM<\/strong> plat\u00ed va\u0161e pravidla p\u0159\u00edstupu: omezte \u010dten\u00ed na osoby odpov\u011bdn\u00e9 za bezpe\u010dnost.<\/li><\/ul><p>Bezpe\u010dnostn\u00ed protokol s\u00e1m obsahuje osobn\u00ed \u00fadaje, u\u017e jen dom\u00e9ny a \u010dasy: chr\u00e1n\u00ed se a ma\u017ee stejn\u011b jako ony.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b6cb8a elementor-widget elementor-widget-text-editor\" data-id=\"0b6cb8a\" 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>Osv\u011bd\u010den\u00e9 postupy<\/h2><ol><li>Sepsat \u00fa\u010del: diagnostika, d\u016fkaz, vy\u0161et\u0159ov\u00e1n\u00ed, dohled.<\/li><li>Podle toho stanovit dobu uchov\u00e1v\u00e1n\u00ed exportu a zapsat ji do z\u00e1znam\u016f o \u010dinnostech zpracov\u00e1n\u00ed.<\/li><li>Omezit p\u0159\u00edstup a zaznamen\u00e1vat nahl\u00ed\u017een\u00ed do samotn\u00fdch protokol\u016f.<\/li><li>Ned\u011blat z protokolu archiv po\u0161ty: uchov\u00e1vat metadata, ne t\u011bla zpr\u00e1v.<\/li><li>Vyzkou\u0161et skute\u010dn\u00e9 vyhled\u00e1v\u00e1n\u00ed: dohledat rozhodnut\u00ed o zpr\u00e1v\u011b star\u00e9 t\u0159i m\u011bs\u00edce.<\/li><\/ol><p>Telefonn\u00ed nahr\u00e1vky se \u0159\u00edd\u00ed jinou logikou a jin\u00fdmi lh\u016ftami: viz <a href='\/cs\/doba-uchovavani-nahravek-hovoru\/'>jak dlouho uchov\u00e1vat nahr\u00e1vky<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8551e93 elementor-widget elementor-widget-text-editor\" data-id=\"8551e93\" 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>\u010cast\u00e9 dotazy<\/h2><h3>Lze dohledat obsah zpr\u00e1vy filtrovan\u00e9 p\u0159ed m\u011bs\u00edcem?<\/h3><p>Ve filtru ne, pokud byla doru\u010dena: obsah se po kr\u00e1tk\u00e9 lh\u016ft\u011b ma\u017ee. Hledejte ho ve schr\u00e1nce nebo v archivu.<\/p><h3>Jak dlouho je t\u0159eba protokoly uchov\u00e1vat?<\/h3><p>Podle \u00fa\u010delu, kter\u00fd je t\u0159eba zdokumentovat. Doporu\u010den\u00ed CNIL k protokolov\u00e1n\u00ed d\u00e1v\u00e1 \u0159\u00e1dovou p\u0159edstavu \u0161est m\u011bs\u00edc\u016f a\u017e jeden rok.<\/p><h3>Je export do SIEM sou\u010d\u00e1st\u00ed nab\u00eddky Essential?<\/h3><p>Ne, je sou\u010d\u00e1st\u00ed nab\u00eddky Advanced. Essential vysv\u011btluje ka\u017ed\u00e9 rozhodnut\u00ed v hlavi\u010dk\u00e1ch.<\/p><h3>Pot\u0159ebuji pro tyto protokoly Klytic Mail?<\/h3><p>Ne. Vytv\u00e1\u0159\u00ed je Klytic MTA bez ohledu na to, jak\u00fd e-mailov\u00fd syst\u00e9m je za n\u00edm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7996f4 kly-g-klytic elementor-widget elementor-widget-text-editor\" data-id=\"d7996f4\" 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>Kde se nach\u00e1z\u00ed Klytic<\/h2><p><a href='\/cs\/klytic-mta\/'>Klytic MTA<\/a> vysv\u011btluje ka\u017ed\u00e9 rozhodnut\u00ed sk\u00f3re a d\u016fvodem v hlavi\u010dk\u00e1ch, v nab\u00eddce Essential i Advanced. Advanced p\u0159id\u00e1v\u00e1 protokoly exportovateln\u00e9 do va\u0161eho SIEM a konzoli DMARC.<\/p><p>Technick\u00e1 doba uchov\u00e1n\u00ed je omezen\u00e1: \u017e\u00e1dn\u00e9 trval\u00e9 uchov\u00e1v\u00e1n\u00ed doru\u010den\u00e9 zpr\u00e1vy, vymaz\u00e1n\u00ed osobn\u00edch podrobnost\u00ed anal\u00fdzy ve v\u00fdchoz\u00edm nastaven\u00ed po 2 dnech, nebezpe\u010dn\u00e1 zpr\u00e1va uchov\u00e1van\u00e1 \u0161ifrovan\u00e1 po dobu platnosti odkazu pro uvoln\u011bn\u00ed, \u0161ifrovan\u00e1 fronta. Dlouhodob\u00e9 uchov\u00e1v\u00e1n\u00ed, pokud je pot\u0159ebujete, prob\u00edh\u00e1 ve va\u0161em n\u00e1stroji na z\u00e1klad\u011b exportu.<\/p><p>Slu\u017eba existuje i bez Klytic Mail. Nasazuje se v cloudu Klytic, na dedikovan\u00e9 instanci nebo na va\u0161ich serverech.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79d3bf2 kly-g-disclaimer elementor-widget elementor-widget-text-editor\" data-id=\"79d3bf2\" 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>Tato str\u00e1nka popisuje obecn\u00fd r\u00e1mec. Doba uchov\u00e1v\u00e1n\u00ed platn\u00e1 pro va\u0161i organizaci z\u00e1vis\u00ed na va\u0161ich \u00fa\u010delech a p\u0159\u00edpadn\u011b na odv\u011btvov\u00fdch povinnostech.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb68440 kly-g-legal elementor-widget elementor-widget-text-editor\" data-id=\"cb68440\" 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><b>Pr\u00e1vn\u00ed stav k 11. \u0159\u00edjnu 2026.<\/b> \u017d\u00e1dn\u00fd prostudovan\u00fd p\u0159edpis nestanov\u00ed dobu uchov\u00e1v\u00e1n\u00ed specifickou pro protokoly filtrov\u00e1n\u00ed e-mailu. Doporu\u010den\u00ed CNIL z 18. listopadu 2021 k protokolov\u00e1n\u00ed nen\u00ed z\u00e1vazn\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d09ac18 kly-g-sources elementor-widget elementor-widget-text-editor\" data-id=\"d09ac18\" 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>Zdroje<\/h2><p>Ov\u011b\u0159eno v \u0159\u00edjnu 2026.<\/p><ul><li>CNIL, \u201eLa CNIL publie une recommandation relative aux mesures de journalisation\u201c (CNIL zve\u0159ej\u0148uje doporu\u010den\u00ed k opat\u0159en\u00edm pro protokolov\u00e1n\u00ed, 18. listopadu 2021): doporu\u010den\u00e1 doba uchov\u00e1v\u00e1n\u00ed \u0161est m\u011bs\u00edc\u016f a\u017e jeden rok pro protokolov\u00e1n\u00ed p\u0159\u00edstup\u016f ke zpracov\u00e1n\u00ed, mo\u017en\u00e9 prodlou\u017een\u00ed, je-li od\u016fvodn\u011bn\u00e9, nez\u00e1vazn\u00e9 doporu\u010den\u00ed. <a href='https:\/\/www.cnil.fr\/fr\/la-cnil-publie-une-recommandation-relative-aux-mesures-de-journalisation' rel='noopener' target='_blank'>cnil.fr<\/a><\/li><li>Klytic, str\u00e1nka Klytic MTA: rozhodnut\u00ed vysv\u011btlen\u00e9 v hlavi\u010dk\u00e1ch (Essential a Advanced), protokoly CIS \/ NIST exportovateln\u00e9 do SIEM (Advanced), moduly nab\u00eddek Essential a Advanced, dopl\u0148ky, zp\u016fsoby nasazen\u00ed, uveden\u00ed do provozu zm\u011bnou MX. <a href='https:\/\/www.klytic.com\/klytic-mta\/' rel='noopener' target='_blank'>klytic.com<\/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-735f393 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"735f393\" 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-14fa550 elementor-widget elementor-widget-html\" data-id=\"14fa550\" 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 t\u00e9to str\u00e1nce\"><p>Na t\u00e9to str\u00e1nce<\/p><ol><\/ol><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e98ec38 elementor-widget elementor-widget-text-editor\" data-id=\"e98ec38\" 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>Rozhodnut\u00ed, kter\u00e1 si m\u016f\u017eete znovu p\u0159e\u010d\u00edst<\/h3><p>Sk\u00f3re a d\u016fvod v ka\u017ed\u00e9 zpr\u00e1v\u011b; export do va\u0161eho SIEM s nab\u00eddkou Advanced.<\/p><p><a class=\"kly-g-btn\" href=\"\/cs\/kontakt\/\">Promluvit s poradcem \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/cs\/klytic-mta\/\">Porovnat Essential a Advanced<\/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-4e34e39 e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"4e34e39\" 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-f3affdb elementor-widget elementor-widget-text-editor\" data-id=\"f3affdb\" 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>P\u0159e\u010dt\u011bte si tak\u00e9<\/h2><div class=\"kly-g-grid\"><a class=\"kly-g-card\" href=\"\/cs\/audit-rozhodnuti-filtru\/\" style=\"--cat:#dc2626\"><span class=\"c\">Pou\u017e\u00edvat \u00b7 Zabezpe\u010den\u00ed e-mail\u016f<\/span><span class=\"t\">Jak \u010d\u00edst a exportovat rozhodnut\u00ed filtru<\/span><span class=\"q\">Jak v hlavi\u010dk\u00e1ch p\u0159e\u010d\u00edst sk\u00f3re a d\u016fvod rozhodnut\u00ed Klytic MTA, exportovat protokoly do SIEM a co audit uchov\u00e1v\u00e1.<\/span><span class=\"m\"><span>5 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/karantena-falesne-poplachy\/\" style=\"--cat:#dc2626\"><span class=\"c\">Pou\u017e\u00edvat \u00b7 Zabezpe\u010den\u00ed e-mail\u016f<\/span><span class=\"t\">Karant\u00e9na, fale\u0161n\u00e9 poplachy a hl\u00e1\u0161en\u00ed<\/span><span class=\"q\">Co se stane se zpr\u00e1vou zadr\u017eenou Klytic MTA, jak ji uvolnit, opravit fale\u0161n\u00fd poplach a nahl\u00e1sit \u0161kodlivou zpr\u00e1vu.<\/span><span class=\"m\"><span>6 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/doba-uchovavani-nahravek-hovoru\/\" style=\"--cat:#e11d48\"><span class=\"c\">Pochopit \u00b7 Telefonie<\/span><span class=\"t\">Jak dlouho uchov\u00e1vat nahr\u00e1vky hovor\u016f<\/span><span class=\"q\">\u017d\u00e1dn\u00e1 univerz\u00e1ln\u00ed lh\u016fta: \u00fa\u010del, informov\u00e1n\u00ed dot\u010den\u00fdch osob, p\u0159im\u011b\u0159en\u00e1 doba. Orienta\u010dn\u00ed lh\u016fta CNIL a pro\u010d se z\u00e1lohy \u0159\u00edd\u00ed jin\u00fdmi hodinami.<\/span><span class=\"m\"><span>7 min \u010dten\u00ed<\/span><b>\u010c\u00edst \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\">Uv\u00edtac\u00ed nab\u00eddka<\/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 dn\u00ed zku\u0161ebn\u00ed verze zdarma a migrace s asistenc\u00ed<\/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\">Zku\u0161ebn\u00ed nab\u00eddka bez z\u00e1vazk\u016f. N\u00e1\u0161 poradce v\u00e1m zavol\u00e1, aby poznal va\u0161e pot\u0159eby a p\u0159ipravil va\u0161e prost\u0159ed\u00ed Klytic.<\/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 Zah\u00e1jit zku\u0161ebn\u00ed verzi zdarma\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\tZobrazit cen\u00edk\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":"Bezpe\u010dnostn\u00ed protokoly e-mailu: obsah a doba | Klytic","_seopress_titles_desc":"K \u010demu slou\u017e\u00ed protokol filtrov\u00e1n\u00ed e-mailu, co uchov\u00e1v\u00e1, jak dlouho jej uchov\u00e1vat podle \u00fa\u010delu a technick\u00e1 doba uchov\u00e1n\u00ed v Klytic MTA.","_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":"Bezpe\u010dnostn\u00ed protokoly e-mailu: obsah a doba | Klytic","_seopress_social_fb_desc":"K \u010demu slou\u017e\u00ed protokol filtrov\u00e1n\u00ed e-mailu, co uchov\u00e1v\u00e1, jak dlouho jej uchov\u00e1vat podle \u00fa\u010delu a technick\u00e1 doba uchov\u00e1n\u00ed v Klytic MTA.","_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":"Bezpe\u010dnostn\u00ed protokoly e-mailu: obsah a doba | Klytic","_seopress_social_twitter_desc":"K \u010demu slou\u017e\u00ed protokol filtrov\u00e1n\u00ed e-mailu, co uchov\u00e1v\u00e1, jak dlouho jej uchov\u00e1vat podle \u00fa\u010delu a technick\u00e1 doba uchov\u00e1n\u00ed v Klytic MTA.","_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-7460","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/comments?post=7460"}],"version-history":[{"count":0,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7460\/revisions"}],"wp:attachment":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/media?parent=7460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}