{"id":7449,"date":"2026-10-12T13:03:33","date_gmt":"2026-10-12T11:03:33","guid":{"rendered":"https:\/\/eu.klytic.com\/email-v-cloudu-dedikovany-nebo-u-vas\/"},"modified":"2026-10-12T16:13:38","modified_gmt":"2026-10-12T14:13:38","slug":"email-v-cloudu-dedikovany-nebo-u-vas","status":"publish","type":"page","link":"https:\/\/eu.klytic.com\/cs\/email-v-cloudu-dedikovany-nebo-u-vas\/","title":{"rendered":"E-mail v cloudu, dedikovan\u00fd e-mail, nebo e-mail ve va\u0161ich prostor\u00e1ch"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7449\" class=\"elementor elementor-7449 elementor-6287\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b358757 e-con-full kly-g e-flex e-con e-parent\" data-id=\"b358757\" 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-d518271 e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"d518271\" 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-f3478f2 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"f3478f2\" 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-0702a80 elementor-widget elementor-widget-text-editor\" data-id=\"0702a80\" 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>E-mail<\/p><p class=\"kly-g-pill\" style=\"--pill:#60a5fa\">E-mail \u00b7 Pochopit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83fc0d3 elementor-widget elementor-widget-heading\" data-id=\"83fc0d3\" 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\">E-mail v cloudu, dedikovan\u00fd e-mail, nebo e-mail ve va\u0161ich prostor\u00e1ch<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d37c099 elementor-widget elementor-widget-text-editor\" data-id=\"d37c099\" 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\">Firemn\u00ed e-mail m\u016f\u017ee b\u011b\u017eet na platform\u011b sd\u00edlen\u00e9 v\u00edce z\u00e1kazn\u00edky, na instanci vyhrazen\u00e9 va\u0161\u00ed organizaci, nebo na serveru nainstalovan\u00e9m ve va\u0161ich prostor\u00e1ch. Um\u00edst\u011bn\u00ed stroje m\u011bn\u00ed m\u00e9n\u011b, ne\u017e se zd\u00e1: rozhoduje, kdo ho provozuje, kdo m\u016f\u017ee otev\u0159\u00edt schr\u00e1nku a jak od slu\u017eby odejdete. Vlastn\u00ed hosting d\u00e1v\u00e1 fyzickou kontrolu; nevy\u0159e\u0161\u00ed v\u0161ak provoz a s\u00e1m o sob\u011b ani suverenitu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5a6e45 elementor-widget elementor-widget-text-editor\" data-id=\"a5a6e45\" 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>8 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-8ed9618 e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"8ed9618\" 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-af6b29a e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"af6b29a\" 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-31e765a elementor-widget elementor-widget-text-editor\" data-id=\"31e765a\" 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>T\u0159i provozn\u00ed re\u017eimy<\/h2><p>\u010casto se mluv\u00ed o \u201ecloudu\u201c proti \u201eon-premise\u201c, jako by existovaly dva t\u00e1bory. V praxi existuj\u00ed t\u0159i re\u017eimy a rozli\u0161uj\u00ed je dv\u011b ot\u00e1zky: kde stroj b\u011b\u017e\u00ed a kdo ho provozuje.<\/p><div class='kly-def'><p><strong>Provozovat e-mail<\/strong> znamen\u00e1 instalovat aktualizace, sledovat frontu zpr\u00e1v a m\u00edsto na disku, obnovovat certifik\u00e1ty, z\u00e1lohovat, obnovovat data, reagovat na incident v 7 r\u00e1no a udr\u017eovat reputaci odes\u00edl\u00e1n\u00ed dom\u00e9ny. Hostovat znamen\u00e1 pouze poskytnout stroj a s\u00ed\u0165.<\/p><\/div><h3>Provozovan\u00fd cloud<\/h3><p>Dodavatel spravuje celou platformu. Ta je obvykle sd\u00edlen\u00e1 v\u00edce z\u00e1kazn\u00edky s logick\u00fdm odd\u011blen\u00edm: ka\u017ed\u00e1 organizace vid\u00ed jen sv\u00e9 dom\u00e9ny a schr\u00e1nky, ale servery, \u00falo\u017ei\u0161t\u011b a provozn\u00ed t\u00fdmy jsou spole\u010dn\u00e9. Je to re\u017eim, kter\u00fd se nejsn\u00e1ze spou\u0161t\u00ed a jeho\u017e provoz je nejlevn\u011bj\u0161\u00ed.<\/p><h3>Dedikovan\u00fd e-mail<\/h3><p>Instance nebo server je vyhrazen va\u0161\u00ed organizaci. Va\u0161e data nesd\u00edlej\u00ed prostor s daty \u017e\u00e1dn\u00e9ho jin\u00e9ho z\u00e1kazn\u00edka. Dodavatel d\u00e1l zaji\u0161\u0165uje provoz: kupujete izolaci, ne pr\u00e1ci nav\u00edc. Tento re\u017eim odpov\u00edd\u00e1 regulovan\u00fdm odv\u011btv\u00edm, velk\u00fdm objem\u016fm, skupin\u00e1m, kter\u00e9 cht\u011bj\u00ed sv\u00e9 spole\u010dnosti jasn\u011b odd\u011blit, nebo nastaven\u00edm, kter\u00e1 sd\u00edlen\u00e1 platforma nem\u016f\u017ee povolit jedin\u00e9mu z\u00e1kazn\u00edkovi.<\/p><h3>E-mail ve va\u0161ich prostor\u00e1ch<\/h3><p>Stroj je u v\u00e1s, ve va\u0161\u00ed serverovn\u011b nebo datov\u00e9m centru. N\u011bkdo ho ale mus\u00ed provozovat. Bu\u010f to d\u011bl\u00e1 v\u00e1\u0161 t\u00fdm, nebo dodavatel na d\u00e1lku, s p\u0159\u00edstupem, kter\u00fd mu otev\u0159ete. Ob\u011b volby jsou legitimn\u00ed; nestoj\u00ed v\u0161ak stejn\u011b a ned\u00e1vaj\u00ed stejn\u00e9 z\u00e1ruky obnovy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-331d3d8 elementor-widget elementor-widget-text-editor\" data-id=\"331d3d8\" 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 se skute\u010dn\u011b m\u011bn\u00ed<\/h2><p>T\u0159i re\u017eimy od sebe odli\u0161uje p\u011bt bod\u016f. Ostatn\u00ed, jako webmail nebo kompatibilita s Outlookem, z\u00e1vis\u00ed hlavn\u011b na softwaru, ne na um\u00edst\u011bn\u00ed.<\/p><div class='kly-table'><table><thead><tr><th>Bod<\/th><th>Provozovan\u00fd cloud<\/th><th>Dedikovan\u00fd<\/th><th>Ve va\u0161ich prostor\u00e1ch<\/th><\/tr><\/thead><tbody><tr><td>Sousedstv\u00ed<\/td><td>Sd\u00edlen\u00e1 platforma, logick\u00e9 odd\u011blen\u00ed<\/td><td>Na instanci \u017e\u00e1dn\u00fd jin\u00fd z\u00e1kazn\u00edk<\/td><td>Va\u0161e s\u00ed\u0165, va\u0161e ostatn\u00ed servery<\/td><\/tr><tr><td>Aktualizace<\/td><td>Dodavatel, podle sv\u00e9ho harmonogramu<\/td><td>Dodavatel, harmonogram n\u011bkdy k jedn\u00e1n\u00ed<\/td><td>V\u00e1\u0161 t\u00fdm nebo pov\u011b\u0159en\u00fd dodavatel<\/td><\/tr><tr><td>Z\u00e1lohy<\/td><td>U dodavatele, podle jeho smlouvy<\/td><td>U dodavatele, n\u011bkdy vyhrazen\u00e9<\/td><td>Je t\u0159eba je zajistit: kde, k\u00fdm, mimo lokalitu?<\/td><\/tr><tr><td>Kdo m\u016f\u017ee otev\u0159\u00edt schr\u00e1nku<\/td><td>Va\u0161i administr\u00e1to\u0159i a provozovatel<\/td><td>Va\u0161i administr\u00e1to\u0159i a provozovatel<\/td><td>Va\u0161i administr\u00e1to\u0159i a provozovatel, pokud n\u011bjak\u00fd je<\/td><\/tr><tr><td>Odchod<\/td><td>Export a zm\u011bna MX<\/td><td>Export a zm\u011bna MX<\/td><td>Export, zm\u011bna MX a stroj, kter\u00fd je t\u0159eba p\u0159evz\u00edt nebo recyklovat<\/td><\/tr><\/tbody><\/table><\/div><h3>Sousedstv\u00ed<\/h3><p>Na sd\u00edlen\u00e9 platform\u011b m\u016f\u017ee spamov\u00e1 kampa\u0148 odeslan\u00e1 z kompromitovan\u00e9ho \u00fa\u010dtu jin\u00e9ho z\u00e1kazn\u00edka zhor\u0161it reputaci spole\u010dn\u00e9 odes\u00edlac\u00ed IP adresy. Vyhrazen\u00e1 instance nebo vyhrazen\u00e1 IP adresa toto riziko izoluje. Ve va\u0161ich prostor\u00e1ch je sousedem va\u0161e vlastn\u00ed s\u00ed\u0165: napaden\u00fd po\u010d\u00edta\u010d se m\u016f\u017ee k serveru dostat, nen\u00ed-li s\u00ed\u0165 segmentov\u00e1na.<\/p><h3>Kdo m\u016f\u017ee otev\u0159\u00edt schr\u00e1nku<\/h3><p>To je \u0159\u00e1dek, kter\u00fd se vypl\u0148uje p\u0159\u00edli\u0161 rychle. Kdo m\u016f\u017ee schr\u00e1nku obnovit, m\u016f\u017ee ji i \u010d\u00edst, a\u0165 je re\u017eim jak\u00fdkoli. Um\u00edst\u011bn\u00ed tento p\u0159\u00edstup neodstran\u00ed; m\u011bn\u00ed jen seznam lid\u00ed, kte\u0159\u00ed ho maj\u00ed. U\u017eite\u010dn\u00e9 ot\u00e1zky tedy zn\u00ed: kdo dr\u017e\u00ed administr\u00e1torsk\u00e9 \u00fa\u010dty, jsou tyto p\u0159\u00edstupy jmenn\u00e9 a zaznamen\u00e1van\u00e9 a zakazuje smlouva provozovateli otev\u0159\u00edt schr\u00e1nku bez \u017e\u00e1dosti z\u00e1kazn\u00edka. Pouze koncov\u00e9 \u0161ifrov\u00e1n\u00ed, u n\u011bho\u017e si soukrom\u00fd kl\u00ed\u010d ponech\u00e1v\u00e1te vy, nap\u0159\u00edklad pomoc\u00ed S\/MIME, u\u010din\u00ed obsah zpr\u00e1vy pro provozovatele ne\u010diteln\u00fdm.<\/p><h3>Odchod<\/h3><p>Dom\u00e9nov\u00e9 jm\u00e9no mus\u00ed z\u016fstat registrovan\u00e9 na v\u00e1s: pr\u00e1v\u011b jeho z\u00e1znam MX ur\u010duje server, kter\u00fd p\u0159ij\u00edm\u00e1 va\u0161i po\u0161tu, a vy ho mus\u00edte m\u00edt mo\u017enost zm\u011bnit, ani\u017e byste \u017e\u00e1dali o svolen\u00ed. Zbytek se p\u0159ipravuje: export schr\u00e1nek ve standardn\u00edm form\u00e1tu v\u010detn\u011b kalend\u00e1\u0159\u016f a kontakt\u016f, lh\u016fta pro export, smaz\u00e1n\u00ed dat po skon\u010den\u00ed smlouvy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9b1c3d elementor-widget elementor-widget-text-editor\" data-id=\"e9b1c3d\" 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>Vlastn\u00ed hosting k suverenit\u011b nesta\u010d\u00ed<\/h2><p>Um\u00edst\u011bn\u00ed serveru do vlastn\u00edch prostor odpov\u00edd\u00e1 na jednu konkr\u00e9tn\u00ed ot\u00e1zku: kde fyzicky jsou disky. Pr\u016fvodce <a href='\/cs\/co-je-suverenni-cloud\/'>co je suver\u00e9nn\u00ed cloud<\/a> p\u0159ipom\u00edn\u00e1, \u017ee zb\u00fdvaj\u00ed p\u0159inejmen\u0161\u00edm t\u0159i dal\u0161\u00ed: kter\u00e1 spole\u010dnost slu\u017ebu provozuje, jak\u00e9 pr\u00e1vo se na ni vztahuje a jak se od slu\u017eby odch\u00e1z\u00ed.<\/p><p>Server ve va\u0161ich zdech tak m\u016f\u017ee z\u016fstat z\u00e1visl\u00fd na vn\u011bj\u0161\u00edm sv\u011bt\u011b, ani\u017e by to bylo vid\u011bt:<\/p><ul><li>\u00fadr\u017ebu prov\u00e1d\u00ed na d\u00e1lku dodavatel, jeho\u017e zemi a p\u0159\u00edstupy je t\u0159eba zn\u00e1t;<\/li><li>z\u00e1lohy odch\u00e1zej\u00ed do online \u00falo\u017ei\u0161t\u011b zvolen\u00e9ho ve v\u00fdchoz\u00edm nastaven\u00ed, n\u011bkdy mimo va\u0161i oblast;<\/li><li>filtrov\u00e1n\u00ed p\u0159\u00edchoz\u00ed po\u0161ty zaji\u0161\u0165uje slu\u017eba t\u0159et\u00ed strany, kterou ka\u017ed\u00e1 zpr\u00e1va projde, ne\u017e k v\u00e1m doraz\u00ed;<\/li><li>po\u0161ta odeslan\u00e1 va\u0161im z\u00e1kazn\u00edk\u016fm tak jako tak putuje p\u0159es jejich servery, kter\u00e9 nem\u00e1te pod kontrolou.<\/li><\/ul><p>Naopak hostovanou slu\u017ebu m\u016f\u017ee provozovat evropsk\u00e1 spole\u010dnost, kter\u00e1 m\u00e1 nad daty v\u00fdhradn\u00ed kontrolu, se zaznamen\u00e1van\u00fdmi p\u0159\u00edstupy a p\u00edsemn\u011b upraven\u00fdm odchodem. Um\u00edst\u011bn\u00ed z\u016fst\u00e1v\u00e1 u\u017eite\u010dn\u00fdm \u00fadajem, zejm\u00e9na pro z\u00e1znamy o \u010dinnostech zpracov\u00e1n\u00ed. Str\u00e1nka <a href='\/cs\/hosting-a-suverenita\/'>hosting a suverenita<\/a> podrobn\u011b popisuje zp\u016fsoby, kter\u00e9 Klytic nab\u00edz\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e7ff39 elementor-widget elementor-widget-text-editor\" data-id=\"7e7ff39\" 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>Z\u00e1t\u011b\u017e, na kterou se zapom\u00edn\u00e1<\/h2><p>Mal\u00e1 nebo st\u0159edn\u00ed firma m\u016f\u017ee cht\u00edt kontrolu, ani\u017e by cht\u011bla dr\u017eet pohotovost. Ne\u017e e-mail p\u0159enesete k sob\u011b, sepi\u0161te, co provoz skute\u010dn\u011b obn\u00e1\u0161\u00ed.<\/p><ul><li><strong>Monitoring.<\/strong> Rostouc\u00ed fronta zpr\u00e1v, zapl\u0148uj\u00edc\u00ed se disk, vypr\u0161uj\u00edc\u00ed certifik\u00e1t, IP adresa zapsan\u00e1 na blokovac\u00edm seznamu. Ka\u017ed\u00e9 upozorn\u011bn\u00ed mus\u00ed n\u011bkomu doraz\u00edt, i o v\u00edkendu.<\/li><li><strong>V\u00fdpadek.<\/strong> Kdy\u017e se server zastav\u00ed, odes\u00edlatel\u00e9 si po\u0161tu ponechaj\u00ed ve front\u011b a zkou\u0161ej\u00ed ji doru\u010dit znovu: p\u0159\u00edchoz\u00ed po\u0161ta po\u010dk\u00e1. Nikdo ale ne\u010dte ani neodes\u00edl\u00e1 a telefony se p\u0159estanou synchronizovat. Jedin\u00e9 internetov\u00e9 p\u0159ipojen\u00ed nebo jedin\u00e9 nap\u00e1jen\u00ed se st\u00e1v\u00e1 bodem selh\u00e1n\u00ed.<\/li><li><strong>S\u00ed\u0165.<\/strong> Pevn\u00e1 IP adresa, konzistentn\u00ed reverzn\u00ed z\u00e1znam DNS, oper\u00e1tor, kter\u00fd propou\u0161t\u00ed odchoz\u00ed po\u0161tu: bez nich kon\u010d\u00ed va\u0161e zpr\u00e1vy u adres\u00e1t\u016f ve spamu.<\/li><li><strong>Obnova vybaven\u00ed.<\/strong> Hardware st\u00e1rne, opera\u010dn\u00ed syst\u00e9m i e-mailov\u00fd software maj\u00ed konec podpory. P\u0159echod na novou hlavn\u00ed verzi se p\u0159ipravuje jako mal\u00fd projekt.<\/li><li><strong>Kompetence.<\/strong> Pokud slu\u017ebu um\u00ed znovu spustit jen jeden \u010dlov\u011bk, jeho dovolen\u00e1 je riziko. Dokumentace a z\u00e1stup jsou sou\u010d\u00e1st\u00ed n\u00e1klad\u016f.<\/li><\/ul><p><strong>P\u0159\u00edklad.<\/strong> Pr\u016fmyslov\u00e1 spole\u010dnost se 60 zam\u011bstnanci (hypotetick\u00fd p\u0159\u00edpad) m\u00e1 serverovnu a chce, aby jej\u00ed v\u00fdkresy neopustily are\u00e1l. E-mail si nainstaluje ve vlastn\u00edch prostor\u00e1ch, ale provoz na d\u00e1lku sv\u011b\u0159\u00ed dodavateli: aktualizace, monitoring, obnovy. Jej\u00ed IT pracovn\u00edk si ponech\u00e1v\u00e1 kontrolu nad hardwarem a s\u00edt\u00ed. Firma m\u00e1 um\u00edst\u011bn\u00ed, jak\u00e9 cht\u011bla, ani\u017e by sama nesla pohotovost. Zb\u00fdv\u00e1 j\u00ed p\u00edsemn\u011b stanovit, kam odch\u00e1zej\u00ed z\u00e1lohy a kdo se m\u016f\u017ee p\u0159ipojit.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8eab174 elementor-widget elementor-widget-text-editor\" data-id=\"8eab174\" 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>Jak se rozhodnout<\/h2><p class='kly-fit yes'>Provozovan\u00fd cloud se hod\u00ed, kdy\u017e chcete za\u010d\u00edt rychle, bez provozn\u00edho t\u00fdmu, a kdy\u017e v\u00e1m sta\u010d\u00ed logick\u00e9 odd\u011blen\u00ed a p\u00edsemn\u00e9 z\u00e1vazky provozovatele.<\/p><p class='kly-fit yes'>Vyhrazen\u00e1 instance se hod\u00ed, kdy\u017e objednatel, regulovan\u00e9 odv\u011btv\u00ed nebo skupina s v\u00edce spole\u010dnostmi vy\u017eaduje, aby va\u0161e data nesd\u00edlela prostor s daty \u017e\u00e1dn\u00e9ho jin\u00e9ho z\u00e1kazn\u00edka, ani\u017e byste cht\u011bli slu\u017ebu sami provozovat.<\/p><p class='kly-fit yes'>Vlastn\u00ed prostory se hod\u00ed, kdy\u017e data nesm\u011bj\u00ed opustit are\u00e1l, kdy\u017e mus\u00ed b\u00fdt mo\u017en\u00e9 s\u00ed\u0165 izolovat nebo kdy\u017e adres\u00e1\u0159 a infrastruktura u\u017e existuj\u00ed a jsou spravov\u00e1ny.<\/p><p class='kly-fit no'>Vlastn\u00ed prostory jsou \u0161patnou volbou, pokud maj\u00ed slou\u017eit jen k tomu, \u201eabychom byli suver\u00e9nn\u00ed\u201c, a nikdo nem\u00e1 \u010das slu\u017ebu provozovat ani z\u00e1lohovat mimo are\u00e1l.<\/p><p>Funkce, kter\u00e9 je t\u0159eba po\u017eadovat bez ohledu na re\u017eim, najdete v pr\u016fvodci <a href='\/cs\/funkce-firemniho-e-mailu\/'>co mus\u00ed um\u011bt firemn\u00ed e-mail<\/a>. Z\u00e1lohov\u00e1n\u00ed a obnov\u011b po v\u00fdpadku se v\u011bnuje pr\u016fvodce <a href='\/cs\/zalohovani-e-mailu-kontinuita\/'>z\u00e1lohov\u00e1n\u00ed, odstra\u0148ov\u00e1n\u00ed a kontinuita<\/a>. Pro srovn\u00e1n\u00ed evropsk\u00fdch poskytovatel\u016f viz <a href='\/cs\/evropsky-firemni-e-mail\/'>v\u00fdb\u011br evropsk\u00e9ho firemn\u00edho e-mailu<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf42f63 elementor-widget elementor-widget-text-editor\" data-id=\"cf42f63\" 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>M\u00e1 si firma hostovat e-mailov\u00fd server sama?<\/h3><p>Jen pokud m\u00e1te d\u016fvod ponechat stroj na m\u00edst\u011b a n\u011bkoho, kdo ho bude provozovat, nebo dodavatele pov\u011b\u0159en\u00e9ho provozem. Pokud jde jen o suverenitu, provozovatel a smlouva jsou d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e um\u00edst\u011bn\u00ed.<\/p><h3>Je dedikovan\u00fd e-mail bezpe\u010dn\u011bj\u0161\u00ed ne\u017e sd\u00edlen\u00fd cloud?<\/h3><p>Odstra\u0148uje sousedstv\u00ed s jin\u00fdmi z\u00e1kazn\u00edky. S\u00e1m o sob\u011b v\u0161ak nem\u011bn\u00ed, kdo m\u016f\u017ee otev\u0159\u00edt schr\u00e1nku, ani kvalitu z\u00e1loh. Tyto dva body porovnejte p\u00edsemn\u011b.<\/p><h3>Lze re\u017eim pozd\u011bji zm\u011bnit?<\/h3><p>Ano, za p\u0159edpokladu, \u017ee se schr\u00e1nky daj\u00ed exportovat ve standardn\u00edm form\u00e1tu a dom\u00e9na je registrovan\u00e1 na v\u00e1s. Postup je stejn\u00fd jako p\u0159i <a href='\/cs\/migrace-e-mailu-bez-preruseni\/'>migraci bez p\u0159eru\u0161en\u00ed<\/a>.<\/p><h3>Mus\u00ed b\u00fdt filtrov\u00e1n\u00ed na stejn\u00e9m m\u00edst\u011b jako schr\u00e1nky?<\/h3><p>Ne. Bezpe\u010dnostn\u00ed br\u00e1nu lze um\u00edstit p\u0159ed e-mailov\u00fd syst\u00e9m, jinam ne\u017e on. Tuto volbu vysv\u011btluje pr\u016fvodce <a href='\/cs\/bezpecnostni-brana-e-mailu\/'>integrovan\u00fd filtr, nebo br\u00e1na<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb8cade kly-g-klytic elementor-widget elementor-widget-text-editor\" data-id=\"cb8cade\" 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 stoj\u00ed Klytic<\/h2><p>Klytic Mail je nab\u00edzen ve v\u0161ech t\u0159ech re\u017eimech: ve sd\u00edlen\u00e9 architektu\u0159e Klytic, odd\u011blen\u00e9 pro ka\u017ed\u00e9ho z\u00e1kazn\u00edka, ve vyhrazen\u00e9 instanci, nebo u z\u00e1kazn\u00edka. V ka\u017ed\u00e9m re\u017eimu Klytic platformu provozuje: \u00fadr\u017eba, aktualizace, bezpe\u010dnost, monitoring a udr\u017eov\u00e1n\u00ed provozuschopnosti. Dedikovan\u00fd server se zav\u00e1d\u00ed na z\u00e1klad\u011b cenov\u00e9 nab\u00eddky. P\u0159echod z jednoho re\u017eimu do jin\u00e9ho je mo\u017en\u00fd i pozd\u011bji.<\/p><p>Hosting je mo\u017en\u00fd v jak\u00e9koli geografick\u00e9 oblasti odpov\u00eddaj\u00edc\u00ed platn\u00e9 jurisdikci, s v\u00fdhradou dostupnosti slu\u017eeb, zejm\u00e9na v Evrop\u011b nebo na Mauriciu, nebo na serverech z\u00e1kazn\u00edka.<\/p><p>Klytic Mail je e-mailov\u00fd syst\u00e9m. Klytic MTA je br\u00e1na, kter\u00e1 p\u0159ed n\u00edm po\u0161tu filtruje; mo\u017en\u00fd je i sm\u00ed\u0161en\u00fd provoz, nap\u0159\u00edklad filtrov\u00e1n\u00ed u Klyticu a e-mail u v\u00e1s. Podrobnosti o filtru najdete v pr\u016fvodci <a href='\/cs\/bezpecnostni-brana-e-mailu\/'>integrovan\u00fd filtr, nebo br\u00e1na<\/a>.<\/p><p>T\u00fdm\u016fm Klytic je p\u0159\u00edstup k e-mailov\u00fdm \u00fa\u010dt\u016fm z\u00e1kazn\u00edk\u016f zak\u00e1z\u00e1n; technick\u00e9 p\u0159\u00edstupy jsou kontrolovan\u00e9 a auditovan\u00e9. Zpr\u00e1vy jsou v klidu \u0161ifrov\u00e1ny kl\u00ed\u010di spravovan\u00fdmi Klyticem, co\u017e chr\u00e1n\u00ed datov\u00e1 m\u00e9dia; aby byl obsah pro Klytic ne\u010diteln\u00fd, z\u00e1kazn\u00edk \u0161ifruje koncov\u011b vlastn\u00edm soukrom\u00fdm kl\u00ed\u010dem, nap\u0159\u00edklad pomoc\u00ed S\/MIME.<\/p><p>Co nab\u00eddka nepokr\u00fdv\u00e1: e-mail, kter\u00fd byste na sv\u00e9m serveru provozovali sami, bez Klyticu. Klytic nem\u00e1 kvalifikaci SecNumCloud; pokud ji objednatel vy\u017eaduje, tato nab\u00eddka po\u017eadavku nespl\u0148uje.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28d8b0e kly-g-disclaimer elementor-widget elementor-widget-text-editor\" data-id=\"28d8b0e\" 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. Nenahrazuje rozbor va\u0161\u00ed smlouvy ani va\u0161\u00ed infrastruktury.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ebc470 kly-g-sources elementor-widget elementor-widget-text-editor\" data-id=\"1ebc470\" 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>Konzultov\u00e1no v \u0159\u00edjnu 2026.<\/p><ul><li>Klytic, E-mail: zp\u016fsoby hostingu Klytic Mail (datov\u00e1 centra v dan\u00e9 oblasti, dedikovan\u00fd server, prostory z\u00e1kazn\u00edka) a dopl\u0148ky. <a href='https:\/\/www.klytic.com\/messagerie-collaborative\/' rel='noopener' target='_blank'>klytic.com<\/a><\/li><li>Klytic, Hosting a suverenita: t\u0159i zp\u016fsoby nasazen\u00ed, sm\u00ed\u0161en\u00fd provoz, pozd\u011bj\u0161\u00ed zm\u011bna re\u017eimu. <a href='https:\/\/www.klytic.com\/hebergement-souverainete\/' rel='noopener' target='_blank'>klytic.com<\/a><\/li><li>Klytic, Co je suver\u00e9nn\u00ed cloud: provozovatel, rozhodn\u00e9 pr\u00e1vo, odchod; dr\u017een\u00ed kl\u00ed\u010d\u016f a z\u00e1kaz p\u0159\u00edstupu t\u00fdm\u016f Klytic ke schr\u00e1nk\u00e1m. <a href='https:\/\/www.klytic.com\/cloud-souverain\/' rel='noopener' target='_blank'>klytic.com<\/a><\/li><li>Klytic, V\u00fdb\u011br evropsk\u00e9ho firemn\u00edho e-mailu: provoz zaji\u0161\u0165uje Klytic bez ohledu na zp\u016fsob hostingu. <a href='https:\/\/www.klytic.com\/messagerie-professionnelle-europeenne\/' 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-c57cc24 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"c57cc24\" 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-9209474 elementor-widget elementor-widget-html\" data-id=\"9209474\" 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-23f1115 elementor-widget elementor-widget-text-editor\" data-id=\"23f1115\" 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>Jak\u00fd re\u017eim pro v\u00e1\u0161 e-mail?<\/h3><p>Omezen\u00ed, st\u00e1vaj\u00edc\u00ed infrastruktura, po\u017eadovan\u00e1 oblast: poradce posoud\u00ed va\u0161i situaci a doporu\u010d\u00ed v\u00e1m zp\u016fsob hostingu.<\/p><p><a class=\"kly-g-btn\" href=\"\/cs\/kontakt\/\">Po\u017e\u00e1dat o radu \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/cs\/hosting-a-suverenita\/\">Zp\u016fsoby hostingu<\/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-f6c5483 e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"f6c5483\" 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-a2a8cc5 elementor-widget elementor-widget-text-editor\" data-id=\"a2a8cc5\" 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\/funkce-firemniho-e-mailu\/\" style=\"--cat:#2563eb\"><span class=\"c\">Pochopit \u00b7 E-mail<\/span><span class=\"t\">Jak\u00e9 funkce o\u010dek\u00e1vat od firemn\u00edho e-mailu<\/span><span class=\"q\">Kontroln\u00ed seznam pro zad\u00e1vac\u00ed dokumentaci: identita, pou\u017e\u00edv\u00e1n\u00ed, z\u00e1kladn\u00ed bezpe\u010dnost, obnova a odchod, u ka\u017ed\u00e9ho \u0159\u00e1dku porucha, kter\u00e9 p\u0159edch\u00e1z\u00ed.<\/span><span class=\"m\"><span>7 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/zalohovani-e-mailu-kontinuita\/\" style=\"--cat:#2563eb\"><span class=\"c\">Pochopit \u00b7 E-mail<\/span><span class=\"t\">Z\u00e1lohov\u00e1n\u00ed e-mailu, maz\u00e1n\u00ed a v\u00fdpadek serveru<\/span><span class=\"q\">Ko\u0161, z\u00e1loha a z\u00e1lo\u017en\u00ed platforma nepokr\u00fdvaj\u00ed tyt\u00e9\u017e nehody. Co z\u00e1loha vr\u00e1t\u00ed a co slibuj\u00ed RTO a RPO.<\/span><span class=\"m\"><span>6 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/evropsky-firemni-e-mail\/\" style=\"--cat:#6d28d9\"><span class=\"c\">P\u0159\u00edru\u010dky<\/span><span class=\"t\">Jak vybrat evropsk\u00fd firemn\u00ed e-mail<\/span><span class=\"q\">\u017d\u00e1dn\u00e9 univerz\u00e1ln\u00ed po\u0159ad\u00ed: provozovatel, protokoly, sd\u00edlen\u00e9 schr\u00e1nky, filtrov\u00e1n\u00ed, z\u00e1lohov\u00e1n\u00ed, odchod. Co otestovat p\u0159i uk\u00e1zce a jak\u00e9 skupiny nab\u00eddek existuj\u00ed.<\/span><span class=\"m\"><span>P\u0159\u00edru\u010dky<\/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":"E-mail v cloudu, dedikovan\u00fd, nebo ve va\u0161ich prostor\u00e1ch | Klytic","_seopress_titles_desc":"Provozovan\u00fd cloud, vyhrazen\u00e1 instance, nebo server u v\u00e1s: srovn\u00e1n\u00ed sousedstv\u00ed, aktualizac\u00ed, z\u00e1loh, p\u0159\u00edstupu ke schr\u00e1nk\u00e1m, odchodu a provozn\u00ed z\u00e1t\u011b\u017ee.","_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":"E-mail v cloudu, dedikovan\u00fd, nebo ve va\u0161ich prostor\u00e1ch | Klytic","_seopress_social_fb_desc":"Provozovan\u00fd cloud, vyhrazen\u00e1 instance, nebo server u v\u00e1s: srovn\u00e1n\u00ed sousedstv\u00ed, aktualizac\u00ed, z\u00e1loh, p\u0159\u00edstupu ke schr\u00e1nk\u00e1m, odchodu a provozn\u00ed z\u00e1t\u011b\u017ee.","_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":"E-mail v cloudu, dedikovan\u00fd, nebo ve va\u0161ich prostor\u00e1ch | Klytic","_seopress_social_twitter_desc":"Provozovan\u00fd cloud, vyhrazen\u00e1 instance, nebo server u v\u00e1s: srovn\u00e1n\u00ed sousedstv\u00ed, aktualizac\u00ed, z\u00e1loh, p\u0159\u00edstupu ke schr\u00e1nk\u00e1m, odchodu a provozn\u00ed z\u00e1t\u011b\u017ee.","_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-7449","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7449","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=7449"}],"version-history":[{"count":0,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7449\/revisions"}],"wp:attachment":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/media?parent=7449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}