{"id":5170,"date":"2026-10-05T22:26:36","date_gmt":"2026-10-05T20:26:36","guid":{"rendered":"https:\/\/eu.klytic.com\/?page_id=5170"},"modified":"2026-10-07T12:12:59","modified_gmt":"2026-10-07T10:12:59","slug":"migracia-e-mailu-bez-prerusenia","status":"publish","type":"page","link":"https:\/\/eu.klytic.com\/sk\/migracia-e-mailu-bez-prerusenia\/","title":{"rendered":"Ako migrova\u0165 firemn\u00fd e-mail bez preru\u0161enia?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5170\" class=\"elementor elementor-5170 elementor-3219\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a5c378a e-con-full kly-g e-flex e-con e-parent\" data-id=\"a5c378a\" 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-00669fe e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"00669fe\" 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-6070933 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"6070933\" 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-1bb28e5 elementor-widget elementor-widget-text-editor\" data-id=\"1bb28e5\" 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=\"\/sk\/\">Domov<\/a><span>\u203a<\/span><a href=\"\/sk\/prirucky\/\">Pr\u00edru\u010dky<\/a><span>\u203a<\/span><a href=\"\/sk\/prirucky\/#migration\">Migr\u00e1cia<\/a><\/p><p class=\"kly-g-pill\" style=\"--pill:#2dd4bf\">Migr\u00e1cia<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de79b53 elementor-widget elementor-widget-heading\" data-id=\"de79b53\" 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\">Ako migrova\u0165 firemn\u00fd e-mail bez preru\u0161enia?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a6a1ac elementor-widget elementor-widget-text-editor\" data-id=\"0a6a1ac\" 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\">Migr\u00e1cia bez preru\u0161enia znamen\u00e1, \u017ee ka\u017ed\u00e1 spr\u00e1va odoslan\u00e1 na va\u0161u dom\u00e9nu doraz\u00ed do niektorej schr\u00e1nky a \u017ee ka\u017ed\u00fd zamestnanec m\u00f4\u017ee v de\u0148 prepnutia p\u00edsa\u0165 svojim kore\u0161pondentom. Neznamen\u00e1 to, \u017ee sa hist\u00f3ria, mobiln\u00e9 zariadenia a zvyky zmenia bez ak\u00e9hoko\u013evek z\u00e1sahu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95d0055 elementor-widget elementor-widget-text-editor\" data-id=\"95d0055\" 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>Aktualizovan\u00e9 <b>v okt\u00f3bri 2026<\/b><\/span><span><b>6 min<\/b> \u010d\u00edtania<\/span><span>Uveden\u00e9 ofici\u00e1lne 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-24f62e2 e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"24f62e2\" 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-3f39d3c e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"3f39d3c\" 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-0d6945e elementor-widget elementor-widget-text-editor\" data-id=\"0d6945e\" 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>Princ\u00edp<\/h2><p>Dve platformy funguj\u00fa s\u00fabe\u017ene.<\/p><ul><li>P\u00f4vodn\u00e1 platforma e\u0161te prij\u00edma po\u0161tu, k\u00fdm na \u0148u ukazuje z\u00e1znam MX dom\u00e9ny.<\/li><li>Nov\u00e1 platforma dostane k\u00f3piu hist\u00f3rie a potom druh\u00fa k\u00f3piu rozdielu.<\/li><li>V de\u0148 D ukazuje z\u00e1znam MX na nov\u00fa platformu. P\u00f4vodn\u00e1 zost\u00e1va \u010ditate\u013en\u00e1 dovtedy, k\u00fdm sa neover\u00ed, \u017ee ju u\u017e \u017eiadny tok nepou\u017e\u00edva.<\/li><\/ul><p>Typick\u00fd v\u00fdpadok vznik\u00e1, ke\u010f sa MX prepne v \u010dase, ke\u010f je k\u00f3pia ne\u00fapln\u00e1, alebo ke\u010f kop\u00edrka, webov\u00e1 str\u00e1nka \u010di CRM e\u0161te odosiela po\u0161tu so star\u00fdmi prihlasovac\u00edmi \u00fadajmi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00bfb5a elementor-widget elementor-widget-text-editor\" data-id=\"00bfb5a\" 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>Pre\u010do sa po\u0161ta nestrat\u00ed a kedy sa strat\u00ed<\/h2><p>MX je z\u00e1znam DNS: odosielaj\u00facim serverom oznamuje, kam maj\u00fa doru\u010dova\u0165 po\u0161tu pre va\u0161u dom\u00e9nu. Zmeni\u0165 e-mailov\u00fa slu\u017ebu znamen\u00e1 predov\u0161etk\u00fdm zmeni\u0165 t\u00fato doru\u010dovaciu adresu. Zvy\u0161ok (\u00fa\u010dty, hist\u00f3ria, zariadenia) sa pripravuje okolo toho.<\/p><p>Protokol SMTP dobre zn\u00e1\u0161a kr\u00e1tke incidenty. Odosielaj\u00faci server, ktor\u00fd dostane do\u010dasn\u00fa chybu, ponech\u00e1 spr\u00e1vu vo fronte a nesk\u00f4r to sk\u00fasi znova. Server, ktor\u00fd je chv\u00ed\u013eu nedostupn\u00fd, teda nesp\u00f4sob\u00ed stratu po\u0161ty. Naopak trval\u00e1 chyba (nezn\u00e1ma schr\u00e1nka, odmietnut\u00e1 spr\u00e1va) vr\u00e1ti spr\u00e1vu odosielate\u013eovi a t\u00e1to spr\u00e1va u\u017e sama nikdy nedoraz\u00ed. Hlavn\u00fdm rizikom prepnutia nie je v\u00fdpadok, ale nov\u00e1 platforma, ktor\u00e1 odmietne pr\u00edjemcu, preto\u017ee nejak\u00fd alias alebo distribu\u010dn\u00fd zoznam nebol znovu vytvoren\u00fd.<\/p><p>TTL (doba platnosti) ur\u010duje, ako dlho m\u00f4\u017ee DNS resolver uchov\u00e1va\u0165 odpove\u010f v pam\u00e4ti. Po\u010das tejto doby \u010das\u0165 odosielate\u013eov e\u0161te doru\u010duje na p\u00f4vodn\u00fa platformu. Je to norm\u00e1lne, a preto mus\u00ed by\u0165 p\u00f4vodn\u00e1 platforma po\u010das prechodu st\u00e1le schopn\u00e1 prij\u00edma\u0165 po\u0161tu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d646b7a elementor-widget elementor-widget-text-editor\" data-id=\"d646b7a\" 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>Postup<\/h2><p><strong>Dva t\u00fd\u017edne vopred.<\/strong> S\u00fapis schr\u00e1nok, aliasov, distribu\u010dn\u00fdch zoznamov, zdie\u013ean\u00fdch schr\u00e1nok a v\u0161etk\u00fdch aplik\u00e1ci\u00ed, ktor\u00e9 odosielaj\u00fa e-maily. Zn\u00ed\u017eenie TTL z\u00e1znamu MX na kr\u00e1tku hodnotu (\u010dasto 300 sek\u00fand), aby sa zmena v de\u0148 D r\u00fdchlo roz\u0161\u00edrila. Vytvorenie cie\u013eov\u00fdch \u00fa\u010dtov. Prv\u00e1 k\u00f3pia hist\u00f3rie.<\/p><p>TTL sa zni\u017euje v\u010das, preto\u017ee resolver, ktor\u00fd na\u010d\u00edtal star\u00fa hodnotu, si ju ponech\u00e1 a\u017e do jej uplynutia: kr\u00e1tke TTL sa uplatn\u00ed a\u017e po vypr\u0161an\u00ed starej vyrovn\u00e1vacej pam\u00e4te. Prv\u00e1 k\u00f3pia je naopak najdlh\u0161ia; ak sa spust\u00ed v\u010das, zostane \u010das odhali\u0165 schr\u00e1nky, ktor\u00e9 robia probl\u00e9my.<\/p><p><strong>Nieko\u013eko dn\u00ed vopred.<\/strong> Kontrola vzorky: po\u010det spr\u00e1v, prie\u010dinky alebo \u0161t\u00edtky, udalosti v kalend\u00e1ri, kontakty. \u00daprava met\u00f3dy, ak vzorka neprejde. Pr\u00edprava n\u00e1vodov pre mobiln\u00e9 zariadenia a Outlook. Sk\u00fa\u0161obn\u00e9 odoslanie z cie\u013eovej platformy do Gmailu a Outlook.com, pri\u010dom SPF, DKIM a DMARC s\u00fa na novej platforme u\u017e platn\u00e9. Tieto z\u00e1znamy je mo\u017en\u00e9 zverejni\u0165 e\u0161te pred zmenou MX.<\/p><p>Konkr\u00e9tne: jedin\u00fd z\u00e1znam SPF, ktor\u00fd po\u010das prechodu povo\u013euje obe platformy (dva samostatn\u00e9 z\u00e1znamy SPF sp\u00f4sobia zlyhanie overenia), k\u013e\u00fa\u010d DKIM novej platformy zverejnen\u00fd pod vlastn\u00fdm selektorom ved\u013ea toho p\u00f4vodn\u00e9ho a skontrolovan\u00e1 politika DMARC. DMARC vy\u017eaduje, aby bola spr\u00e1va overen\u00e1 prostredn\u00edctvom SPF alebo DKIM v mene dom\u00e9ny odosielate\u013ea; ak je va\u0161a politika pr\u00edsna a cie\u013eov\u00e1 platforma e\u0161te nie je povolen\u00e1, va\u0161i kore\u0161pondenti bud\u00fa va\u0161e spr\u00e1vy odmieta\u0165.<\/p><p><strong>De\u0148 vopred.<\/strong> Druh\u00fd prechod: skop\u00edrova\u0165 iba to, \u010do pri\u0161lo od prvej k\u00f3pie. Zmrazenie zmien aliasov a distribu\u010dn\u00fdch zoznamov.<\/p><p><strong>De\u0148 D.<\/strong> Prepnutie MX. Okam\u017eit\u00e9 extern\u00e9 overenie: e-mail odoslan\u00fd z externej s\u00fakromnej schr\u00e1nky mus\u00ed na nov\u00fa platformu dorazi\u0165 v r\u00e1mci doby TTL. Sledovanie frontu. Prekonfigurovanie aplik\u00e1ci\u00ed, ktor\u00e9 odosielaj\u00fa po\u0161tu. Ur\u010den\u00e1 intern\u00e1 podpora s opr\u00e1vnen\u00edm vr\u00e1ti\u0165 MX sp\u00e4\u0165, ak zlyh\u00e1 kritick\u00fd tok.<\/p><p>Z\u00e1rove\u0148 zme\u0148te z\u00e1znam autodiscover, ak existuje: pr\u00e1ve ten sa Outlook p\u00fdta, aby na\u0161iel svoj server. Odstr\u00e1\u0148te aj sekund\u00e1rne z\u00e1znamy MX, ktor\u00e9 by e\u0161te ukazovali na p\u00f4vodn\u00fa platformu: odosielate\u013e, ktor\u00fd sa nedok\u00e1\u017ee spoji\u0165 s hlavn\u00fdm MX, sk\u00fa\u0161a \u010fal\u0161ie.<\/p><p><strong>Nasleduj\u00face dni.<\/strong> P\u00f4vodn\u00e1 platforma v re\u017eime iba na \u010d\u00edtanie. Hl\u00e1senie odch\u00fdlok (ch\u00fdbaj\u00faci prie\u010dinok, zdie\u013ean\u00e1 schr\u00e1nka). V pr\u00edpade potreby cielen\u00fd tret\u00ed prechod. Potom vypnutie odosielania na p\u00f4vodnej platforme, aby zamestnanci u\u017e neodpovedali z dvoch miest.<\/p><p>Tento posledn\u00fd bod m\u00e1 technick\u00fd d\u00f4vod. P\u00f4vodn\u00e1 platforma sa st\u00e1le pova\u017euje za zodpovedn\u00fa za va\u0161u dom\u00e9nu: spr\u00e1va, ktor\u00fa z nej niekto po\u0161le kolegovi, sa doru\u010d\u00ed lok\u00e1lne, bez dopytu na MX. Kolega ju vo svojej novej schr\u00e1nke nikdy neuvid\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1b714f elementor-widget elementor-widget-text-editor\" data-id=\"e1b714f\" 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>Rizik\u00e1 a ako sa im vyhn\u00fa\u0165<\/h2><div class='kly-table'><table><thead><tr><th>Riziko<\/th><th>\u010co sa stane<\/th><th>Opatrenie<\/th><\/tr><\/thead><tbody><tr><td>MX prepnut\u00fd pr\u00edli\u0161 skoro<\/td><td>Nov\u00e1 po\u0161ta prich\u00e1dza, ale hist\u00f3ria ch\u00fdba<\/td><td>Prepn\u00fa\u0165 po kontrole vzorky a druhom prechode<\/td><\/tr><tr><td>Zabudnut\u00fd alias alebo distribu\u010dn\u00fd zoznam<\/td><td>Cie\u013eov\u00e1 platforma tieto spr\u00e1vy trvalo odmieta<\/td><td>S\u00fapis, zmrazenie aliasov de\u0148 vopred, test skupinov\u00fdch adries<\/td><\/tr><tr><td>Ne\u00fapln\u00e9 SPF, DKIM alebo DMARC<\/td><td>Va\u0161e spr\u00e1vy s\u00fa u kore\u0161pondentov odmietnut\u00e9 alebo zaraden\u00e9 medzi nevy\u017eiadan\u00fa po\u0161tu<\/td><td>Zverejni\u0165 pred d\u0148om D, overi\u0165 na skuto\u010dnej spr\u00e1ve<\/td><\/tr><tr><td>Aplik\u00e1cia, ktor\u00e1 odosiela cez star\u00fd \u00fa\u010det<\/td><td>Fakt\u00fary, upozornenia alebo naskenovan\u00e9 dokumenty sa prestan\u00fa odosiela\u0165<\/td><td>Zoznam aplik\u00e1ci\u00ed, nov\u00fd server SMTP nastaven\u00fd v de\u0148 D<\/td><\/tr><tr><td>Odosielanie ponechan\u00e9 otvoren\u00e9 na p\u00f4vodnej platforme<\/td><td>Intern\u00e9 spr\u00e1vy zost\u00e1vaj\u00fa v starom syst\u00e9me<\/td><td>Vypn\u00fa\u0165 odosielanie hne\u010f po schv\u00e1len\u00ed vzorky<\/td><\/tr><tr><td>Nepripraven\u00fd n\u00e1vrat sp\u00e4\u0165<\/td><td>MX sa vr\u00e1ti sp\u00e4\u0165, ale spr\u00e1vy prijat\u00e9 medzit\u00fdm zostan\u00fa na cie\u013eovej platforme<\/td><td>P\u00edsomn\u00fd pl\u00e1n vr\u00e1tane prevzatia t\u00fdchto spr\u00e1v<\/td><\/tr><\/tbody><\/table><\/div><h3>Pr\u00edklad<\/h3><p>Vezmime si pre ilustr\u00e1ciu kancel\u00e1riu so 40 \u013eu\u010fmi. Rozhodne sa prepn\u00fa\u0165 vo \u0161tvrtok na konci d\u0148a, a nie v piatok: na druh\u00fd de\u0148 je t\u00edm k dispoz\u00edcii na rie\u0161enie odch\u00fdlok a intern\u00e1 podpora m\u00e1 pred sebou cel\u00fd pracovn\u00fd de\u0148. Kop\u00edrka na recepcii, ktor\u00e1 skenuje do e-mailu, sa prekonfiguruje e\u0161te v ten ve\u010der. Ak pri dvoch zdie\u013ean\u00fdch schr\u00e1nkach ch\u00fdba prie\u010dinok, dopln\u00ed ich cielen\u00fd prechod. V tomto scen\u00e1ri sa nestrat\u00ed \u017eiadna spr\u00e1va, no viacer\u00ed zamestnanci si musia znovu nastavi\u0165 \u00fa\u010det v telef\u00f3ne: to je vidite\u013en\u00e1 \u010das\u0165, ktor\u00fa treba vopred ozn\u00e1mi\u0165.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e6595da elementor-widget elementor-widget-text-editor\" data-id=\"e6595da\" 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>\u010co zostane vidite\u013en\u00e9 pre zamestnancov<\/h2><p>V Outlooku alebo v mobile menia server. Prv\u00e9 na\u010d\u00edtanie ve\u013ekej schr\u00e1nky trv\u00e1 ur\u010dit\u00fd \u010das. Spr\u00e1vy, ktor\u00e9 s\u00fa u\u017e vo vyrovn\u00e1vacej pam\u00e4ti telef\u00f3nu, sa m\u00f4\u017eu zdvoji\u0165, ak sa profil nenastav\u00ed nanovo spr\u00e1vne. Napl\u00e1nujte postup \u201eodstr\u00e1ni\u0165 \u00fa\u010det a vytvori\u0165 ho znova\u201c namiesto improvizovanej zmeny servera.<\/p><p>D\u00f4vod je rovnak\u00fd aj pre Outlook: profil uchov\u00e1va lok\u00e1lnu vyrovn\u00e1vaciu pam\u00e4\u0165 naviazan\u00fa na p\u00f4vodn\u00fd server. Nov\u00fd profil za\u010d\u00edna z \u010dist\u00e9ho stavu; upraven\u00fd star\u00fd profil mie\u0161a oba svety. V mobile sa s platformou niekedy men\u00ed aj pou\u017eit\u00fd protokol (Exchange ActiveSync alebo IMAP pod\u013ea cie\u013eovej platformy), \u010do je \u010fal\u0161\u00ed d\u00f4vod \u00fa\u010det vytvori\u0165 znova.<\/p><p>Pravidl\u00e1 na strane servera, centr\u00e1lne podpisy a delegovan\u00e9 opr\u00e1vnenia sa nastavuj\u00fa znova. Ozn\u00e1mte to vopred. Nejde o preru\u0161enie po\u0161ty. Ide o administrat\u00edvnu pr\u00e1cu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5a8668 elementor-widget elementor-widget-text-editor\" data-id=\"e5a8668\" 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>\u010co \u017eiadna met\u00f3da neskryje<\/h2><ul><li>Hist\u00f3riu propriet\u00e1rnej aplik\u00e1cie na okam\u017eit\u00e9 spr\u00e1vy.<\/li><li>E-mail, ktor\u00fd p\u00f4vodn\u00e1 platforma odmietla e\u0161te pred prepnut\u00edm.<\/li><li>Kore\u0161pondenta, ktor\u00fd m\u00e1 vo vyrovn\u00e1vacej pam\u00e4ti v\u00e1\u0161 star\u00fd k\u013e\u00fa\u010d alebo lok\u00e1lne pravidlo.<\/li><li>\u0160\u00edrenie DNS u resolvera, ktor\u00fd ignoruje TTL. Je to zriedkav\u00e9 a od\u00f4vod\u0148uje to ponecha\u0165 p\u00f4vodn\u00fa platformu e\u0161te nieko\u013eko dn\u00ed schopn\u00fa prij\u00edma\u0165 po\u0161tu s presmerovan\u00edm na nov\u00fa, ak to va\u0161a architekt\u00fara umo\u017e\u0148uje.<\/li><\/ul><p>Toto presmerovanie si vy\u017eaduje v\u00fdslovn\u00e9 nastavenie: p\u00f4vodn\u00e1 platforma, ktor\u00e1 sa st\u00e1le domnieva, \u017ee schr\u00e1nky host\u00ed, mus\u00ed by\u0165 nakonfigurovan\u00e1 tak, aby po\u0161tu odovzd\u00e1vala \u010falej na nov\u00fa platformu namiesto lok\u00e1lneho doru\u010denia. Ak to nie je mo\u017en\u00e9, rovnak\u00fa pr\u00e1cu urob\u00ed cielen\u00fd dopl\u0148uj\u00faci prechod.<\/p><p>Osobitosti jednotliv\u00fdch v\u00fdchodiskov\u00fdch platforiem s\u00fa op\u00edsan\u00e9 v \u010dl\u00e1nkoch <a href='\/sk\/migracia-z-microsoft-365\/'>migr\u00e1cia z Microsoft 365<\/a> a <a href='\/sk\/migracia-z-google-workspace\/'>migr\u00e1cia z Google Workspace<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0842a81 elementor-widget elementor-widget-text-editor\" data-id=\"0842a81\" 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 ot\u00e1zky<\/h2><h3>Ako dlho maj\u00fa obe platformy fungova\u0165 s\u00fabe\u017ene?<\/h3><p>Dovtedy, k\u00fdm sa neover\u00ed, \u017ee p\u00f4vodn\u00fa platformu u\u017e \u017eiadny tok nepou\u017e\u00edva a \u017ee nahl\u00e1sen\u00e9 odch\u00fdlky s\u00fa vyrie\u0161en\u00e9. Z\u00e1vis\u00ed to od po\u010dtu schr\u00e1nok, od aplik\u00e1ci\u00ed, ktor\u00e9 odosielaj\u00fa po\u0161tu, a od tempa prekonfigurovania pracovn\u00fdch stan\u00edc. Pr\u00edli\u0161 skor\u00e9 vypnutie znemo\u017en\u00ed opravy; pr\u00edli\u0161 neskor\u00e9 vypnutie nech\u00e1 zamestnancov pracova\u0165 v dvoch syst\u00e9moch.<\/p><h3>Preru\u0161\u00ed zmena MX po\u0161tu na nieko\u013eko hod\u00edn?<\/h3><p>Nie, ak je pripraven\u00e1. Po\u010das doby TTL \u010das\u0165 odosielate\u013eov e\u0161te doru\u010duje na p\u00f4vodn\u00fa platformu a ostatn\u00ed u\u017e na nov\u00fa. Obe prij\u00edmaj\u00fa a nasleduj\u00faci prechod obe spoj\u00ed. Po\u0161ta sa strat\u00ed iba vtedy, ak je odmietnut\u00e1, a preto s\u00fa d\u00f4le\u017eit\u00e9 aliasy a distribu\u010dn\u00e9 zoznamy.<\/p><h3>Treba informova\u0165 na\u0161ich kore\u0161pondentov?<\/h3><p>Spravidla nie: adresy sa nemenia. Informujte v\u0161ak partnerov, ktor\u00ed va\u0161e spr\u00e1vy pr\u00edsne filtruj\u00fa alebo v\u00e1m pridelili osobitn\u00e9 pravidlo, a t\u00fdch, s ktor\u00fdmi si vymie\u0148ate \u0161ifrovan\u00fa po\u0161tu, ak sa menia k\u013e\u00fa\u010de.<\/p><h3>D\u00e1 sa po prepnut\u00ed vr\u00e1ti\u0165 sp\u00e4\u0165?<\/h3><p>\u00c1no, obnoven\u00edm p\u00f4vodn\u00e9ho MX, za predpokladu, \u017ee p\u00f4vodn\u00e1 platforma je e\u0161te akt\u00edvna. Spr\u00e1vy, ktor\u00e9 medzit\u00fdm prijala nov\u00e1 platforma, je potom potrebn\u00e9 skop\u00edrova\u0165 sp\u00e4\u0165 alebo ich ponecha\u0165 dostupn\u00e9. Pl\u00e1n n\u00e1vratu sp\u00e4\u0165 ur\u010duje, kto rozhoduje, v akom \u010dase a ako sa tieto spr\u00e1vy prevezm\u00fa.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41660b1 elementor-widget elementor-widget-text-editor\" data-id=\"41660b1\" 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>U\u017eito\u010dn\u00e1 z\u00e1ruka<\/h2><p>Op\u00fdtajte sa oper\u00e1tora slu\u017eby, \u010do garantuje: doru\u010denie spr\u00e1v, prevzatie hist\u00f3rie, alebo oboje. Ide o rozdielne z\u00e1v\u00e4zky. Vy\u017eiadajte si aj p\u00edsomn\u00fd pl\u00e1n n\u00e1vratu sp\u00e4\u0165 s menom osoby, ktor\u00e1 m\u00e1 opr\u00e1vnenie ho aktivova\u0165.<\/p><p>Z\u00e1ruka doru\u010denia spr\u00e1v sa t\u00fdka d\u0148a D a nasleduj\u00facich dn\u00ed. Z\u00e1ruka hist\u00f3rie sa t\u00fdka k\u00f3pie a jej kontroly. Poskytovate\u013e m\u00f4\u017ee dodr\u017ea\u0165 jednu bez druhej; cenov\u00e1 ponuka mus\u00ed uv\u00e1dza\u0165, ktor\u00fa z nich preber\u00e1 a ako sa overuje.<\/p><p>V Klytic s\u00fa rady a odpor\u00fa\u010dania na pr\u00edpravu migr\u00e1cie e-mailovej slu\u017eby bezplatn\u00e9 a \u017eiadny e-mail sa nestrat\u00ed. Migr\u00e1cia, ktor\u00fa vykon\u00e1 Klytic, sa ur\u010duje na z\u00e1klade cenovej ponuky. Predplatn\u00e9 s\u00fa uveden\u00e9 na str\u00e1nke <a href='\/sk\/cennik\/'>Cenn\u00edk<\/a> a fakturuj\u00fa sa samostatne. Rozpis n\u00e1kladov\u00fdch polo\u017eiek n\u00e1jdete v \u010dl\u00e1nku <a href='\/sk\/naklady-na-migraciu-microsoft-365\/'>ko\u013eko stoj\u00ed migr\u00e1cia z Microsoft 365<\/a> a kontroln\u00fd zoznam v <a href='\/sk\/kontrolny-zoznam-migracie-microsoft-365\/'>kontrolnom zozname<\/a>. Na porovnanie cie\u013eov\u00fdch platforiem pozri <a href='\/sk\/europsky-firemny-e-mail\/'>v\u00fdber eur\u00f3pskeho firemn\u00e9ho e-mailu<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26943d1 kly-g-disclaimer elementor-widget elementor-widget-text-editor\" data-id=\"26943d1\" 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>T\u00e1to str\u00e1nka opisuje met\u00f3du. Skuto\u010dn\u00fd priebeh z\u00e1vis\u00ed od va\u0161ich tokov, objemov a platformy, ktor\u00fa op\u00fa\u0161\u0165ate.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0afe122 kly-g-sources elementor-widget elementor-widget-text-editor\" data-id=\"0afe122\" 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>Overen\u00e9 v okt\u00f3bri 2026.<\/p><ul><li>Z\u00e1v\u00e4zok k migr\u00e1cii zverejnen\u00fd spolo\u010dnos\u0165ou Klytic. <a href='\/sk\/cennik\/'>Str\u00e1nka Cenn\u00edk<\/a><\/li><li>MX ur\u010duje servery, ktor\u00e9 prij\u00edmaj\u00fa po\u0161tu dom\u00e9ny. <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc5321' rel='noopener' target='_blank'>RFC 5321, SMTP<\/a><\/li><li>Doba platnosti z\u00e1znamov DNS (TTL). <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc1035' rel='noopener' target='_blank'>RFC 1035<\/a><\/li><li>SPF, DKIM, DMARC: <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc7208' rel='noopener' target='_blank'>RFC 7208<\/a>, <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc6376' rel='noopener' target='_blank'>RFC 6376<\/a>, <a href='https:\/\/www.rfc-editor.org\/rfc\/rfc7489' rel='noopener' target='_blank'>RFC 7489<\/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-dc836e1 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"dc836e1\" 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-5c67928 elementor-widget elementor-widget-html\" data-id=\"5c67928\" 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=\"Obsah\"><p>Na tejto str\u00e1nke<\/p><ol><\/ol><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1746709 elementor-widget elementor-widget-text-editor\" data-id=\"1746709\" 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>Pripravte migr\u00e1ciu e-mailu<\/h3><p>Bezplatn\u00e9 poradenstvo, \u017eiadny straten\u00fd e-mail. Na migr\u00e1ciu, ktor\u00fa vykon\u00e1 Klytic, priprav\u00edme cenov\u00fa ponuku po invent\u00fare.<\/p><p><a class=\"kly-g-btn\" href=\"\/sk\/ziadost-o-cenovu-ponuku\/\">Po\u017eiadajte o cenov\u00fa ponuku \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/sk\/cennik\/\">Pozrite si cenn\u00edk<\/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-3985977 e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"3985977\" 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-5aced54 elementor-widget elementor-widget-text-editor\" data-id=\"5aced54\" 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>\u010c\u00edtajte \u010falej<\/h2><div class=\"kly-g-grid\"><a class=\"kly-g-card\" href=\"\/sk\/naklady-na-migraciu-microsoft-365\/\" style=\"--cat:#0e7490\"><span class=\"c\">Migr\u00e1cia<\/span><span class=\"t\">Ko\u013eko stoj\u00ed migr\u00e1cia z Microsoft 365?<\/span><span class=\"q\">Bez s\u00fapisu neexistuje seri\u00f3zna cena. Polo\u017eky cenovej ponuky, \u010do ju ovplyv\u0148uje, ako porovna\u0165 dve ponuky a intern\u00e9 n\u00e1klady, na ktor\u00e9 sa zab\u00fada.<\/span><span class=\"m\"><span>8 min \u010d\u00edtania<\/span><b>\u010c\u00edta\u0165 \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/sk\/kontrolny-zoznam-migracie-microsoft-365\/\" style=\"--cat:#0e7490\"><span class=\"c\">Migr\u00e1cia<\/span><span class=\"t\">Kontroln\u00fd zoznam pre migr\u00e1ciu z Microsoft 365<\/span><span class=\"q\">Kontroln\u00fd zoznam pred prepnut\u00edm, po\u010das neho a po \u0148om: s\u00fapis, ponuka, DNS, kop\u00edrovanie, mobily, odosielaj\u00face aplik\u00e1cie, n\u00e1vrat sp\u00e4\u0165 a zru\u0161enie tenanta.<\/span><span class=\"m\"><span>4 min \u010d\u00edtania<\/span><b>\u010c\u00edta\u0165 \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/sk\/ochrana-firmy-pred-cloud-act\/\" style=\"--cat:#0077cc\"><span class=\"c\">Suverenita<\/span><span class=\"t\">Ako chr\u00e1ni\u0165 firmu pred CLOUD Act?<\/span><span class=\"q\">CLOUD Act sa vz\u0165ahuje na poskytovate\u013ea podliehaj\u00faceho americk\u00e9mu pr\u00e1vu, nie na krajinu disku. Oper\u00e1tor slu\u017eby, sprostredkovatelia, k\u013e\u00fa\u010de, podpora: \u010do rozhoduje.<\/span><span class=\"m\"><span>9 min \u010d\u00edtania<\/span><b>\u010c\u00edta\u0165 \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\u00edtacia ponuka<\/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 sk\u00fa\u0161obnej verzie zdarma, migr\u00e1cia s asistenciou<\/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\">Sk\u00fa\u0161obn\u00e1 ponuka bez z\u00e1v\u00e4zkov. Poradca v\u00e1m zavol\u00e1, aby pochopil va\u0161e potreby a pripravil va\u0161e prostredie 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 Spusti\u0165 sk\u00fa\u0161obn\u00fa verziu 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\tZobrazi\u0165 cenn\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":"<p>Accueil\u203aGuides\u203aMigration Migration Comment migrer une messagerie professionnelle sans interruption ? Une migration sans interruption signifie que chaque message envoy\u00e9 \u00e0 votre domaine arrive dans une bo\u00eete, et que chaque salari\u00e9 peut \u00e9crire \u00e0 ses correspondants le jour de la bascule. Elle ne signifie pas que l\u2019historique, les mobiles et les habitudes changent sans aucun geste. [&hellip;]<\/p>\n","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":"Ako migrova\u0165 firemn\u00fd e-mail bez preru\u0161enia? | Klytic","_seopress_titles_desc":"S\u00fabe\u017en\u00e1 prev\u00e1dzka, druh\u00fd prechod, TTL z\u00e1znamu MX, SPF, DKIM, DMARC a testy odosielania: zmena e-mailovej slu\u017eby bez straty po\u0161ty a \u010do zostane vidite\u013en\u00e9.","_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":"Ako migrova\u0165 firemn\u00fd e-mail bez preru\u0161enia? | Klytic","_seopress_social_fb_desc":"S\u00fabe\u017en\u00e1 prev\u00e1dzka, druh\u00fd prechod, TTL z\u00e1znamu MX, SPF, DKIM, DMARC a testy odosielania: zmena e-mailovej slu\u017eby bez straty po\u0161ty a \u010do zostane vidite\u013en\u00e9.","_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":"Ako migrova\u0165 firemn\u00fd e-mail bez preru\u0161enia? | Klytic","_seopress_social_twitter_desc":"S\u00fabe\u017en\u00e1 prev\u00e1dzka, druh\u00fd prechod, TTL z\u00e1znamu MX, SPF, DKIM, DMARC a testy odosielania: zmena e-mailovej slu\u017eby bez straty po\u0161ty a \u010do zostane vidite\u013en\u00e9.","_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-5170","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/pages\/5170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/comments?post=5170"}],"version-history":[{"count":2,"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/pages\/5170\/revisions"}],"predecessor-version":[{"id":5558,"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/pages\/5170\/revisions\/5558"}],"wp:attachment":[{"href":"https:\/\/eu.klytic.com\/sk\/wp-json\/wp\/v2\/media?parent=5170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}