{"id":8023,"date":"2024-10-04T11:46:24","date_gmt":"2024-10-04T09:46:24","guid":{"rendered":"https:\/\/www.crmcarecloud.com\/?p=8023"},"modified":"2024-10-22T08:59:49","modified_gmt":"2024-10-22T06:59:49","slug":"the-importance-of-spf-dmarc-and-dkim-for-sender-reputation","status":"publish","type":"post","link":"https:\/\/www.crmcarecloud.com\/cz\/blog\/tipy-triky\/the-importance-of-spf-dmarc-and-dkim-for-sender-reputation\/","title":{"rendered":"V\u00fdznam SPF, DMARC a DKIM pro reputaci odes\u00edlatele"},"content":{"rendered":"<p class=\"blogperex\">SPF, DKIM a DMARC jsou kl\u00ed\u010dov\u00e9 metody ov\u011b\u0159ov\u00e1n\u00ed, kter\u00e9 zabra\u0148uj\u00ed \u0161\u00ed\u0159en\u00ed spamu a dal\u0161\u00edch podvodn\u00fdch e-mail\u016f. Zahrnut\u00ed z\u00e1znam\u016f DKIM a SPF a DMARC do nastaven\u00ed dom\u00e9ny v\u00e1m umo\u017en\u00ed odes\u00edlat marketingov\u00e9 e-maily, ani\u017e by skon\u010dily ve spamu.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-1024x683.jpg\" alt=\"the symbol @ symbolizes email security\" class=\"wp-image-8026\" srcset=\"https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-1024x683.jpg 1024w, https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-300x200.jpg 300w, https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-768x512.jpg 768w, https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-1536x1024.jpg 1536w, https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-2048x1365.jpg 2048w, https:\/\/www.crmcarecloud.com\/wp-content\/uploads\/2024\/09\/dreamstime_xl_88004311-18x12.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"nadpismaly spodniodsazeni\">ZAJIST\u011aTE DORU\u010cITELNOST VA\u0160ICH E-MAIL\u016e<\/p>\n\n\n\n<p class=\"blogodstavec\">Ka\u017ed\u00fd den vyt\u0159\u00edd\u00ed poskytovatel\u00e9 e-mailov\u00fdch schr\u00e1nek miliony spamu. Poskytovatel\u00e9 e-mailu jako Google tedy neust\u00e1le zp\u0159\u00eds\u0148uj\u00ed zabezpe\u010den\u00ed p\u0159\u00edsn\u00fdmi po\u017eadavky na rozli\u0161ov\u00e1n\u00ed spamu. Jako market\u00e9r se mus\u00edte rychle p\u0159izp\u016fsobit, abyste v\u016fbec mohli e-mailov\u00fd marketing zas\u00edlat.<\/p>\n\n\n\n<p class=\"blogodstavec\">Zvy\u0161ov\u00e1n\u00ed doru\u010ditelnosti a budov\u00e1n\u00ed reputace odes\u00edlatele se st\u00e1v\u00e1 rozhoduj\u00edc\u00edm faktorem pro dobr\u00fd e-mailing. Psan\u00ed kvalitn\u00edho obsahu a aktualizov\u00e1n\u00ed e-mailov\u00fdch seznam\u016f jsou samoz\u0159ejm\u011b nezbytn\u00e9. Mnoho market\u00e9r\u016f v\u0161ak zapom\u00edn\u00e1 na back end. Chcete-li si udr\u017eet zdravou e-mailovou dom\u00e9nu (sv\u00e9 e-mailingov\u00e9 ID), mus\u00edte do nastaven\u00ed zahrnout spr\u00e1vn\u011b nastaven\u00e9 SPF, DKIM a DMARC z\u00e1znamy.<\/p>\n\n\n\n<p class=\"blogodstavec\">Tyto metody v\u00e1m umo\u017en\u00ed proj\u00edt spamov\u00fdmi filtry a\u017e do schr\u00e1nky p\u0159\u00edjemce, ale tak\u00e9 v\u00e1s ochr\u00e1n\u00ed p\u0159ed podvodn\u00fdmi zpr\u00e1vami odes\u00edlan\u00fdmi pod va\u0161\u00ed dom\u00e9nou (spoofing).<\/p>\n\n\n\n<p class=\"blogodstavec\">Poj\u010fme se na n\u011b spole\u010dn\u011b pod\u00edvat.<\/p>\n\n\n\n<p class=\"nadpismaly spodniodsazeni\">SPF (Sender Policy Framework)<\/p>\n\n\n\n<p class=\"blogodstavec\">Zde je jednoduch\u00e9, ale \u00fa\u010dinn\u00e9 \u0159e\u0161en\u00ed: z\u00e1znam SPF obsahuje seznam v\u0161ech autorizovan\u00fdch IP adres, kter\u00e9 mohou odes\u00edlat e-maily v r\u00e1mci va\u0161\u00ed dom\u00e9ny. P\u0159\u00edjemce analyzuje va\u0161i DNS a zjist\u00ed, zda je dan\u00e1 IP adresa skute\u010dn\u011b autorizov\u00e1na va\u0161\u00ed dom\u00e9nou. Pokud ano, e-mail poch\u00e1z\u00ed z legitimn\u00edho zdroje, co\u017e va\u0161\u00ed zpr\u00e1v\u011b dod\u00e1 na d\u016fv\u011bryhodnosti.<\/p>\n\n\n\n<p class=\"blogodstavec\">Nastaven\u00ed se m\u016f\u017ee trochu li\u0161it v z\u00e1vislosti na va\u0161em poskytovateli e-mailov\u00fdch slu\u017eeb (ESP), ale proces prob\u00edh\u00e1 n\u00e1sledovn\u011b:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Sepi\u0161te si seznam V\u0160ECH poskytovatel\u016f, kter\u00e9 pou\u017e\u00edv\u00e1te k odes\u00edl\u00e1n\u00ed z va\u0161\u00ed dom\u00e9ny<\/li>\n\n\n\n<li class=\"blogodstavec\">Vstupte do nastaven\u00ed DNS a vytvo\u0159te\/upravte z\u00e1znam SPF. Pokud ji\u017e z\u00e1znam SPF existuje, vyhledejte n\u00e1sleduj\u00edc\u00ed polo\u017eku: \u201ev=spf1\u201c. Pot\u00e9 jednodu\u0161e p\u0159idejte sv\u00e9 poskytovatele ESP pomoc\u00ed p\u0159\u00edkazu \u201einclude\u201c. Nap\u0159\u00edklad pro Google to vypad\u00e1 takto: v=spf1 include:_spf.google.com<\/li>\n\n\n\n<li class=\"blogodstavec\">Pokud m\u00e1te v\u00edce poskytovatel\u016f, zahr\u0148te je v\u0161echny<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Pro spr\u00e1vn\u00e9 nastaven\u00ed z\u00e1znam\u016f SPF pro dom\u00e9nu cortex je zapot\u0159eb\u00ed tento z\u00e1znam:<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center blogodstavec text-center\"><strong>v=spf1 mx include:_spf.cortex.cz ~all\u201c<\/strong><\/p>\n\n\n\n<p class=\"blogodstavec\"><em>Pozn\u00e1mka<\/em>: I kdy\u017e pou\u017e\u00edv\u00e1te v\u00edce poskytovatel\u016f, mus\u00edte m\u00edt pouze jeden z\u00e1znam SPF!<\/p>\n\n\n\n<p class=\"nadpismaly spodniodsazeni\">DMARC (Domain-based Message Authentication, Reporting, and Conformance)<\/p>\n\n\n\n<p class=\"blogodstavec\">DMARC kombinuje metody DKIM a SPF. V podstat\u011b \u0159\u00edk\u00e1 p\u0159ij\u00edmaj\u00edc\u00edmu poskytovateli, co m\u00e1 ud\u011blat, pokud e-mail neprojde DKIM nebo SPF: odeslat jej i p\u0159esto, d\u00e1t do spamu nebo automaticky odm\u00edtnout. DMARC se stal osv\u011bd\u010den\u00fdm postupem pro odes\u00edlatele hromadn\u00fdch e-mail\u016f, proto\u017ee p\u0159id\u00e1v\u00e1 dal\u0161\u00ed vrstvu zabezpe\u010den\u00ed e-mailu a zaji\u0161\u0165uje optim\u00e1ln\u00ed doru\u010ditelnost.&nbsp;<\/p>\n\n\n\n<p class=\"blogodstavec translation-block\">Tedy p\u0159esn\u011bji: nejen osv\u011bd\u010den\u00fd postup, ale i <em>nutnost<\/em>! Nap\u0159\u00edklad poskytovatel\u00e9 e-mailov\u00fdch slu\u017eeb Google a Yahoo automaticky odm\u00edtaj\u00ed e-maily hromadn\u00fdch odes\u00edlatel\u016f, pokud nemaj\u00ed DMARC z\u00e1znam. Proto mus\u00edte nastavit i tuto metodu, chcete-li n\u011bkdy poslat newsletter na z\u00e1kazn\u00edk\u016fv Gmail.<\/p>\n\n\n\n<p class=\"blogodstavec\">Jako v p\u0159edchoz\u00edm p\u0159\u00edpad\u011b se z\u00e1znam DMARC nastavuje v DNS va\u0161\u00ed dom\u00e9ny:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Vstupte do DNS nastaven\u00ed va\u0161\u00ed dom\u00e9ny<\/li>\n\n\n\n<li class=\"blogodstavec\">Vytvo\u0159te TXT z\u00e1znam v DNS. Do pole \u201eHost\u201c vlo\u017ete \u201e_dmarc\u201c, do pole \u201eValue\u201c vlo\u017ete \u201e v=DMARC1\u201c a nastavte konkr\u00e9tn\u00ed z\u00e1sady - \u201ep=xxx\u201c\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">p=none (i kdy\u017e e-mail neprojde kontrolou DKIM a SPF, bude p\u0159esto odesl\u00e1n)<\/li>\n\n\n\n<li class=\"blogodstavec\">p=quarantine (pokud e-mail neprojde kontrolami, bude za\u0159azen do spamu)<\/li>\n\n\n\n<li class=\"blogodstavec\">p=rejection (pokud e-mail neprojde kontrolami, nebude v\u016fbec p\u0159ijat)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Pro spr\u00e1vn\u00e9 nastaven\u00ed DMARC pro dom\u00e9nu cortex je zapot\u0159eb\u00ed n\u00e1sleduj\u00edc\u00ed polo\u017eka:<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center blogodstavec text-center\"><strong>v=DMARC1; p=none; sp=none;<\/strong><\/p>\n\n\n\n<p class=\"nadpismaly spodniodsazeni\">DKIM (DomainKeys Identified Mail)<\/p>\n\n\n\n<p class=\"blogodstavec\">DKIM je \u0161ifrovan\u00fd digit\u00e1ln\u00ed podpis p\u0159idan\u00fd do headeru e-mailu. Ov\u011b\u0159uje se pomoc\u00ed dvou z\u00e1znam\u016f DNS (identifikace zna\u010dkov\u00e9 dom\u00e9ny): de\u0161ifrovac\u00edho kl\u00ed\u010de a selektoru. Po p\u0159ijet\u00ed e-mailu se poskytovatel pod\u00edv\u00e1 do DNS va\u0161\u00ed dom\u00e9ny, kde se nach\u00e1z\u00ed ve\u0159ejn\u00fd de\u0161ifrovac\u00ed kl\u00ed\u010d. Pokud kl\u00ed\u010d funguje a podpis je de\u0161ifrov\u00e1n, projdete kontrolou poskytovatele. Pou\u017eit\u00ed DKIM v\u00fdrazn\u011b zvy\u0161uje doru\u010ditelnost.<\/p>\n\n\n\n<p class=\"blogodstavec\">Zde je uveden obecn\u00fd postup:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Vygenerujte kl\u00ed\u010d DKIM a selektor z \u00fa\u010dtu va\u0161eho poskytovatele e-mailov\u00fdch slu\u017eeb (ESP). Zkop\u00edrujte oba z\u00e1znamy<\/li>\n\n\n\n<li class=\"blogodstavec\">P\u0159idejte z\u00e1znam DKIM do nastaven\u00ed DNS sv\u00e9 dom\u00e9ny vytvo\u0159en\u00edm z\u00e1znamu TXT. Vlo\u017ete selektor do pole \u201eHost\u201c nebo \u201eName\u201c a samotn\u00fd vygenerovan\u00fd kl\u00ed\u010d do pole \u201eValue\u201c<\/li>\n\n\n\n<li class=\"blogodstavec\">Povolte u sv\u00e9ho poskytovatele DKIM<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\">Spr\u00e1vn\u00e9 nastaven\u00ed DKIM pro dom\u00e9nu cortex je toto:<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center blogodstavec text-center\"><strong>dkim._domainkey.domain.com IN CNAME dkim._domainkey.cortex.cz<\/strong><\/p>\n\n\n\n<p class=\"blogodstavec\">M\u00edsto \"domain.com\" dejte n\u00e1zev va\u0161\u00ed dom\u00e9ny, pot\u00e9 nastavte a nechte potvrdit poskytovatelem Cortex.<\/p>\n\n\n\n<p class=\"blogodstavec\"><em>Pozn\u00e1mka<\/em>: Nastavte z\u00e1znam DKIM pro ka\u017ed\u00e9 ESP, kter\u00e9 pou\u017e\u00edv\u00e1te k odes\u00edl\u00e1n\u00ed e-mail\u016f.<\/p>\n\n\n\n<p class=\"nadpismaly spodniodsazeni\">CARECLOUD BERE DORU\u010cITELNOST V\u00c1\u017dN\u011a<\/p>\n\n\n\n<p class=\"blogodstavec\">Protokoly DKIM a SPF v podstat\u011b ov\u011b\u0159uj\u00ed pravost e-mail\u016f, zat\u00edmco DMARC rozhoduje o tom, jak nalo\u017eit s neov\u011b\u0159en\u00fdmi e-maily. Pokud chcete optimalizovat doru\u010ditelnost a vybudovat si silnou reputaci odes\u00edlatele, d\u016frazn\u011b doporu\u010dujeme p\u0159idat v\u0161echny t\u0159i. V\u00e1\u0161 e-mailov\u00fd marketing mus\u00ed b\u00fdt legitimn\u00ed a mus\u00ed spl\u0148ovat nejnov\u011bj\u0161\u00ed po\u017eadavky, aby vyd\u011blal.<\/p>\n\n\n\n<p class=\"blogodstavec\">Platforma CareCloud ch\u00e1pe v\u00fdznam zabezpe\u010den\u00ed e-mail\u016f. Pro z\u00e1v\u011bre\u010dnou rekapitulaci uv\u00e1d\u00edme spr\u00e1vn\u00e1 nastaven\u00ed SPF, DMARC a DKIM pro na\u0161e servery:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\"><strong>v=spf1 mx include:_spf.cortex.cz ~all\u201c<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\"><strong>v=DMARC1; p=none; sp=none;<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"blogodstavec\"><strong>dkim._domainkey.domain.com IN CNAME dkim._domainkey.cortex.cz<\/strong>, kde domain.com je nahrazena n\u00e1zvem va\u0161\u00ed dom\u00e9ny. Nejprve mus\u00ed b\u00fdt nastaveno na va\u0161\u00ed stran\u011b a pot\u00e9 nastaveno a potvrzeno na stran\u011b Cortex.<\/li>\n<\/ul>\n\n\n\n<p class=\"blogodstavec\">Apart from providing Email Designer and bulk sending, we also offer a separate CareCloud Onboarding Service. With it, you will gain the necessary insight, know-how, and best practices to jumpstart your marketing with the CareCloud platform. Needless to say, email security and deliverability are also part of the service. With CareCloud Onboarding, you will get the message through.<\/p>","protected":false},"excerpt":{"rendered":"<p>SPF, DKIM, and DMARC are key email authentication methods that prevent spam and other fraudulent emails. Including DKIM and SPF records in your emails, as well as DMARC policy, allows you to send email marketing without ending up in spam. PROTECT YOUR SENDER&#8217;S REPUTATION Every day, email inbox providers filter out millions of malicious messages.&hellip;<\/p>","protected":false},"author":9,"featured_media":8026,"comment_status":"closed","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"categories":[12],"tags":[13,25],"class_list":["post-8023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips-tricks","tag-emailing","tag-integration"],"_links":{"self":[{"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/posts\/8023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/comments?post=8023"}],"version-history":[{"count":5,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/posts\/8023\/revisions"}],"predecessor-version":[{"id":8069,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/posts\/8023\/revisions\/8069"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/media\/8026"}],"wp:attachment":[{"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/media?parent=8023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/categories?post=8023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.crmcarecloud.com\/cz\/wp-json\/wp\/v2\/tags?post=8023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}