{"id":572,"date":"2024-11-18T12:43:54","date_gmt":"2024-11-18T11:43:54","guid":{"rendered":"https:\/\/o-seznam.cz\/napoveda\/email\/?page_id=572"},"modified":"2024-12-14T00:58:27","modified_gmt":"2024-12-13T23:58:27","slug":"povinne-technicke-nalezitosti","status":"publish","type":"page","link":"https:\/\/o-seznam.cz\/napoveda\/email\/pro-odesilatele-hromadnych-zprav\/povinne-technicke-nalezitosti\/","title":{"rendered":"Autentifikace pomoc\u00ed SPF, DKIM a DMARC"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Pro \u00fasp\u011b\u0161n\u00e9 doru\u010den\u00ed zpr\u00e1v je vy\u017eadov\u00e1na jejich autentifikace pomoc\u00ed validn\u00edch <strong>SPF <\/strong>a <strong>DKIM <\/strong>z\u00e1znam\u016f. V p\u0159\u00edpad\u011b, \u017ee tyto z\u00e1znamy chyb\u00ed nebo neodpov\u00eddaj\u00ed, mohou b\u00fdt zpr\u00e1vy doru\u010deny do slo\u017eky Spam nebo zcela zahozeny.<\/p>\n\n\n\n<p>D\u016frazn\u011b doporu\u010dujeme nastavit rovn\u011b\u017e <strong>DMARC <\/strong>z\u00e1znam. Poskytovatel\u00e9 e-mailov\u00fdch slu\u017eeb po cel\u00e9m sv\u011bt\u011b v sou\u010dasn\u00e9 dob\u011b zav\u00e1d\u00ed pravidla definuj\u00edc\u00ed DMARC jako dal\u0161\u00ed povinn\u00fd z\u00e1znam pro doru\u010den\u00ed zpr\u00e1v.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"accordion\">\n\t<div class=\"accordion__items\">\n\n<details class=\"expander is-style-default\">\n\t<summary data-datalayer-name=\"\" data-datalayer-text=\"Co je SPF?\">\n\t\t\t\t<strong>Co je SPF?<\/strong>\n\t\t\t<\/summary>\n\t<div class=\"inner-blocks\">\n\n<p><strong>SPF<\/strong>&nbsp;nebo-li&nbsp;<em>Sender Policy Framework&nbsp;<\/em>je zp\u016fsob, jak definovat, kter\u00e9 servery mohou odes\u00edlat e-mailov\u00e9 zpr\u00e1vy z va\u0161\u00ed dom\u00e9ny. To se hod\u00ed, pokud&nbsp;pot\u0159ebujete zajistit, aby se nikdo nepokusil zas\u00edlat e-mailov\u00e9 zpr\u00e1vy za v\u00e1s. Rozhodnete-li se vyu\u017e\u00edt SPF a vytvo\u0159it na dom\u00e9n\u011b tento z\u00e1znam, m\u011bli byste do SPF z\u00e1znamu&nbsp;<strong>zahrnout v\u0161echny servery, kter\u00e9 z va\u0161\u00ed dom\u00e9ny odes\u00edlaj\u00ed elektronickou po\u0161tu<\/strong>.<\/p>\n\n<\/div><\/details>\n\n\n\n<details class=\"expander is-style-default\">\n\t<summary data-datalayer-name=\"\" data-datalayer-text=\"Co je DKIM?\">\n\t\t\t\t<strong>Co je DKIM?<\/strong>\n\t\t\t<\/summary>\n\t<div class=\"inner-blocks\">\n\n<p class=\"is-style-link-external\"><strong>DKIM\u00a0<\/strong>nebo-li\u00a0<em>DomainKeys Identified Mail<\/em>\u00a0je metoda ov\u011b\u0159en\u00ed, zda nebyla zpr\u00e1va p\u0159i cest\u011b mezi odes\u00edlatelem a p\u0159\u00edjemcem pozm\u011bn\u011bna. V p\u0159\u00edpad\u011b, \u017ee je DKIM podpis ov\u011b\u0159en jako validn\u00ed, z\u00e1rove\u0148 indikuje, \u017ee byla zpr\u00e1va skute\u010dn\u011b odesl\u00e1na n\u011bk\u00fdm, kdo m\u00e1 opr\u00e1vn\u011bn\u00ed dom\u00e9nu, uvedenou v DKIM podpisu, pou\u017e\u00edvat. Podrobnosti i RFC k DKIM lze nal\u00e9zt nap\u0159. na str\u00e1nce\u00a0<a href=\"https:\/\/dkim.org\/ietf-dkim.htm\" target=\"_blank\" rel=\"noreferrer noopener\">DKIM.org<\/a>.<\/p>\n\n<\/div><\/details>\n\n\n\n<details class=\"expander is-style-default\">\n\t<summary data-datalayer-name=\"\" data-datalayer-text=\"Co je DMARC?\">\n\t\t\t\t<strong>Co je DMARC?<\/strong>\n\t\t\t<\/summary>\n\t<div class=\"inner-blocks\">\n\n<p>Mechanismus&nbsp;<strong>DMARC&nbsp;<\/strong>(<em>Domain-based Message Authentication, Reporting and Conformance<\/em>) slou\u017e\u00ed k validaci e-mailov\u00fdch zpr\u00e1v, k \u010demu\u017e vyu\u017e\u00edv\u00e1 kombinaci ji\u017e existuj\u00edc\u00edch princip\u016f&nbsp;SPF&nbsp;a&nbsp;DKIM. Umo\u017e\u0148uje majiteli dom\u00e9ny zabezpe\u010dit elektronickou komunikaci t\u00edm, \u017ee pom\u016f\u017ee l\u00e9pe zachyt\u00e1vat nevy\u017e\u00e1danou po\u0161tu zneu\u017e\u00edvaj\u00edc\u00ed jeho dom\u00e9nu. Aktivovat lze tak\u00e9 zas\u00edl\u00e1n\u00ed report\u016f o odes\u00edlan\u00fdch zpr\u00e1v\u00e1ch a chov\u00e1n\u00ed p\u0159\u00edjemc\u016f. D\u00edky t\u011bmto mo\u017enostem m\u016f\u017ee spr\u00e1vce dom\u00e9ny kontrolovat, kdo vyu\u017e\u00edv\u00e1 dom\u00e9nu k odes\u00edl\u00e1n\u00ed zpr\u00e1v, kolik zpr\u00e1v odch\u00e1z\u00ed a kam a jak jsou zpr\u00e1vy vyhodnocov\u00e1ny na stran\u011b p\u0159\u00edjemc\u016f.<\/p>\n\n<\/div><\/details>\n\n<\/div><\/div>\n\n<\/div>\n\n\n\n<p><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Pro \u00fasp\u011b\u0161n\u00e9 doru\u010den\u00ed zpr\u00e1v je vy\u017eadov\u00e1na jejich autentifikace pomoc\u00ed validn\u00edch SPF a DKIM z\u00e1znam\u016f. V p\u0159\u00edpad\u011b, \u017ee tyto z\u00e1znamy chyb\u00ed nebo neodpov\u00eddaj\u00ed, mohou b\u00fdt zpr\u00e1vy doru\u010deny do slo\u017eky Spam nebo zcela zahozeny. D\u016frazn\u011b doporu\u010dujeme nastavit rovn\u011b\u017e DMARC z\u00e1znam. Poskytovatel\u00e9 e-mailov\u00fdch slu\u017eeb po cel\u00e9m sv\u011bt\u011b v sou\u010dasn\u00e9 dob\u011b zav\u00e1d\u00ed pravidla definuj\u00edc\u00ed DMARC jako dal\u0161\u00ed povinn\u00fd z\u00e1znam [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":115,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"page-sidemenu","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"page_category":[4],"page_tag":[],"service_status_category":[],"class_list":["post-572","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/pages\/572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/comments?post=572"}],"version-history":[{"count":8,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/pages\/572\/revisions"}],"predecessor-version":[{"id":1195,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/pages\/572\/revisions\/1195"}],"up":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/pages\/115"}],"wp:attachment":[{"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/media?parent=572"}],"wp:term":[{"taxonomy":"page_category","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/page_category?post=572"},{"taxonomy":"page_tag","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/page_tag?post=572"},{"taxonomy":"service_status_category","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/email\/wp-json\/wp\/v2\/service_status_category?post=572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}