{"id":7998,"date":"2026-10-18T11:57:48","date_gmt":"2026-10-18T09:57:48","guid":{"rendered":"https:\/\/eu.it-cyberwall.com\/guides\/spf-dkim-en-dmarc-de-e-mail-van-een-mkb-bedrijf-beschermen\/"},"modified":"2026-10-18T20:34:30","modified_gmt":"2026-10-18T18:34:30","slug":"spf-dkim-dmarc","status":"publish","type":"page","link":"https:\/\/eu.it-cyberwall.com\/nl\/guides\/spf-dkim-dmarc\/","title":{"rendered":"SPF, DKIM en DMARC: de e-mail van een mkb-bedrijf beschermen"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7998\" class=\"elementor elementor-7998 elementor-6679\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-36a12c3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"36a12c3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a39c058\" data-id=\"a39c058\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3c2a2db elementor-widget elementor-widget-html\" data-id=\"3c2a2db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>.itcw-g{max-width:900px;margin:0 auto;font-size:17px;line-height:1.65;color:#2b2f3a}.itcw-g h2{margin-top:10px}.itcw-g .tw{overflow-x:auto;margin:18px 0}.itcw-g table{width:100%;border-collapse:collapse;font-size:15px;min-width:640px}.itcw-g th,.itcw-g td{border:1px solid #e3e6ee;padding:10px 12px;vertical-align:top;text-align:left}.itcw-g thead th{background:#0E0129;color:#fff}.itcw-g tbody th{background:#F6F7FA;font-weight:600}.itcw-g .box{background:#F6F7FA;border-left:4px solid #DE3241;padding:16px 20px;border-radius:6px;margin:18px 0}.itcw-g .box.ok{border-left-color:#2C9703}.itcw-g sup a{text-decoration:none;font-weight:600}.itcw-g ol.src li{margin-bottom:8px;font-size:15px;word-break:break-word}.itcw-g .note{font-size:14px;color:#6b7080}.itcw-g .toc a{display:inline-block;margin:4px 10px 4px 0}<\/style>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f9122d elementor-widget elementor-widget-heading\" data-id=\"4f9122d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Gids<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9972963 elementor-widget elementor-widget-heading\" data-id=\"9972963\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">SPF, DKIM en DMARC: de e-mail van een mkb-bedrijf beschermen<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2026230 elementor-widget elementor-widget-text-editor\" data-id=\"2026230\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><p style=\"text-align:center\">SPF, DKIM en DMARC voorkomen dat iemand valse e-mails in uw naam verstuurt en helpen uw echte berichten aan te komen. Google, Yahoo en Microsoft eisen ze al van grote verzenders. Hier leest u in gewone taal wat ze doen, en hoe u ze invoert zonder uw eigen facturen te blokkeren.<\/p><p class=\"note\" style=\"text-align:center\">Bijgewerkt op 18 oktober 2026 \u00b7 De cijfers hebben een bron onderaan de pagina; de beoordelingen zijn die van IT CyberWall.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-16c50dd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"16c50dd\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7b83a94\" data-id=\"7b83a94\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-731364b elementor-widget elementor-widget-text-editor\" data-id=\"731364b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><div class=\"box toc\"><strong>Inhoud:<\/strong><br \/><a href=\"#pourquoi\">Waarom dit u aangaat<\/a> \u00b7 <a href=\"#trois\">SPF, DKIM en DMARC in gewone taal<\/a> \u00b7 <a href=\"#exigences\">Wat Google, Yahoo en Microsoft eisen<\/a> \u00b7 <a href=\"#etapes\">De invoering, stap voor stap<\/a> \u00b7 <a href=\"#it-cyberwall\">Wat IT CyberWall doet<\/a> \u00b7 <a href=\"#sources\">Bronnen<\/a><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2124b50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2124b50\" data-element_type=\"section\" data-e-type=\"section\" id=\"pourquoi\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f7bf464\" data-id=\"f7bf464\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bcf5c8e elementor-widget elementor-widget-heading\" data-id=\"bcf5c8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Waarom dit u aangaat<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9865c6 elementor-widget elementor-widget-text-editor\" data-id=\"b9865c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><p>Iedereen kan een e-mail versturen die van uw domein lijkt te komen: een valse factuur aan uw klanten, een vals betaalverzoek aan uw boekhouder. Drie instellingen, gepubliceerd in de DNS van uw domeinnaam, laten de mailservers van uw ontvangers uw echte berichten herkennen. Ze beschermen uw e-mail en uw reputatie, niet uw gegevens: het is geen back-up.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7688241 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7688241\" data-element_type=\"section\" data-e-type=\"section\" id=\"trois\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e862c2\" data-id=\"5e862c2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-605ce07 elementor-widget elementor-widget-heading\" data-id=\"605ce07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">SPF, DKIM en DMARC in gewone taal<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0210b77 elementor-widget elementor-widget-text-editor\" data-id=\"0210b77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><table><thead><tr><th>Instelling<\/th><th>Wat ze zegt<\/th><th>Vergelijking<\/th><\/tr><\/thead><tbody><tr><td><strong>SPF<\/strong><\/td><td>De lijst van servers die berichten mogen versturen namens uw domein<sup><a href=\"#source-1\">[1]<\/a><\/sup>.<\/td><td>De lijst van toegelaten postbodes.<\/td><\/tr><tr><td><strong>DKIM<\/strong><\/td><td>Een digitale handtekening die aan elk bericht wordt toegevoegd en het bericht aan uw domein koppelt<sup><a href=\"#source-2\">[2]<\/a><\/sup>.<\/td><td>De bedrijfsstempel op de envelop.<\/td><\/tr><tr><td><strong>DMARC<\/strong><\/td><td>Uw instructie aan de ontvangers wanneer een bericht niet door de controles komt (niets doen, in spam plaatsen, weigeren), en het versturen van rapporten<sup><a href=\"#source-3\">[3]<\/a><\/sup>.<\/td><td>De instructie die bij de receptie is achtergelaten.<\/td><\/tr><\/tbody><\/table><p>Het ANSSI wijdt aan deze drie mechanismen een deel van zijn aanbevelingen over de koppeling van een informatiesysteem aan internet<sup><a href=\"#source-4\">[4]<\/a><\/sup>.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-172d405 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"172d405\" data-element_type=\"section\" data-e-type=\"section\" id=\"exigences\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8ec4a9f\" data-id=\"8ec4a9f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eeb7820 elementor-widget elementor-widget-heading\" data-id=\"eeb7820\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wat Google, Yahoo en Microsoft eisen<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a305bee elementor-widget elementor-widget-text-editor\" data-id=\"a305bee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><ul><li><strong>Google<\/strong>, sinds 1 februari 2024: SPF of DKIM voor alle verzenders; SPF, DKIM en DMARC voor wie meer dan 5 000 berichten per dag naar Gmail stuurt<sup><a href=\"#source-5\">[5]<\/a><\/sup>.<\/li><li><strong>Yahoo<\/strong>: SPF of DKIM voor iedereen; SPF, DKIM en DMARC voor bulkverzendingen<sup><a href=\"#source-6\">[6]<\/a><\/sup>.<\/li><li><strong>Microsoft Outlook.com<\/strong>, sinds 5 mei 2025: SPF, DKIM en DMARC voor domeinen die meer dan 5 000 berichten per dag versturen; anders gaan de berichten naar spam en worden ze daarna geweigerd<sup><a href=\"#source-7\">[7]<\/a><\/sup>.<\/li><\/ul><p>Ook een mkb-bedrijf dat weinig berichten verstuurt, heeft er baat bij alle drie te publiceren: facturen en offertes komen beter aan, en de bedrijfsnaam is moeilijker te misbruiken.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b5d71c9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b5d71c9\" data-element_type=\"section\" data-e-type=\"section\" id=\"etapes\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4f5562a\" data-id=\"4f5562a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-572b83d elementor-widget elementor-widget-heading\" data-id=\"572b83d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">De invoering, stap voor stap<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a32de41 elementor-widget elementor-widget-text-editor\" data-id=\"a32de41\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><ol><li><strong>Alles in kaart brengen wat berichten in uw naam verstuurt<\/strong>: e-mail, facturatiesoftware, CRM, website, e-mailmarketingtool, printer die scans verstuurt.<\/li><li><strong>Een SPF publiceren<\/strong> die deze verzenders opsomt, zonder er een te vergeten.<\/li><li><strong>DKIM activeren<\/strong> voor elke dienst die dat toelaat.<\/li><li><strong>Een DMARC in observatiemodus publiceren<\/strong> (beleid \u00ab none \u00bb) en de rapporten ontvangen.<\/li><li><strong>De rapporten lezen<\/strong> gedurende enkele weken: ze brengen vergeten verzenders en misbruik aan het licht.<\/li><li><strong>Geleidelijk aanscherpen<\/strong>: in spam plaatsen (\u00ab quarantine \u00bb), daarna weigeren (\u00ab reject \u00bb), wat Microsoft aanbeveelt<sup><a href=\"#source-7\">[7]<\/a><\/sup>.<\/li><\/ol><div class=\"box\"><strong>De valkuil.<\/strong> Meteen overstappen op weigeren zonder uw verzenders in kaart te hebben gebracht, blokkeert uw eigen facturen. De observatiefase is niet optioneel.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b863dc0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b863dc0\" data-element_type=\"section\" data-e-type=\"section\" id=\"it-cyberwall\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-54437ee\" data-id=\"54437ee\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5a17ad7 elementor-widget elementor-widget-heading\" data-id=\"5a17ad7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wat IT CyberWall doet<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b2a2f2 elementor-widget elementor-widget-text-editor\" data-id=\"9b2a2f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><p>Wij inventariseren uw verzenders, publiceren en testen de SPF-, DKIM- en DMARC-records, lezen de rapporten samen met u en scherpen het beleid aan wanneer dat zonder risico kan. Het is een korte interventie, die past binnen onze diensten voor <a href=\"https:\/\/eu.it-cyberwall.com\/nl\/cybersecurite\/\">cyberbeveiliging<\/a>.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5735d54 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5735d54\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f5cc4d7\" data-id=\"f5cc4d7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-06b9d29 elementor-widget elementor-widget-heading\" data-id=\"06b9d29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Komen uw e-mails in spam terecht, of wordt uw naam misbruikt?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0aefcda elementor-widget elementor-widget-text-editor\" data-id=\"0aefcda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Wij controleren uw records en voeren SPF, DKIM en DMARC in.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bba935 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"7bba935\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-md\" href=\"https:\/\/eu.it-cyberwall.com\/nl\/contact\/?mf-besoin=cybersecurite#formulaire\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Mijn behoefte beschrijven<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82059e2 elementor-widget elementor-widget-text-editor\" data-id=\"82059e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/eu.it-cyberwall.com\/nl\/guides\/\">\u2190 Al onze gidsen<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-12a1db7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"12a1db7\" data-element_type=\"section\" data-e-type=\"section\" id=\"sources\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e58afdb\" data-id=\"e58afdb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1eeb08b elementor-widget elementor-widget-heading\" data-id=\"1eeb08b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Bronnen<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7caf600 elementor-widget elementor-widget-text-editor\" data-id=\"7caf600\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"itcw-g\"><p class=\"note\">Bronnen geraadpleegd op 18 oktober 2026. De tarieven van de leveranciers zijn vermeld excl. btw, in de valuta en de regio van de gepubliceerde prijslijst, en kunnen veranderen: controleer altijd de offici\u00eble pagina voordat u beslist.<\/p><ol class=\"src\"><li id=\"source-1\">IETF \u2013 RFC 7208, Sender Policy Framework (SPF), april 2014 \u2014 <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc7208\" target=\"_blank\" rel=\"noopener\">www.rfc-editor.org\/rfc\/rfc7208<\/a><\/li><li id=\"source-2\">IETF \u2013 RFC 6376, DomainKeys Identified Mail (DKIM) Signatures, september 2011 \u2014 <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc6376\" target=\"_blank\" rel=\"noopener\">www.rfc-editor.org\/rfc\/rfc6376<\/a><\/li><li id=\"source-3\">IETF \u2013 RFC 9989, DMARC (mei 2026, vervangt RFC 7489) \u2014 <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9989\" target=\"_blank\" rel=\"noopener\">www.rfc-editor.org\/rfc\/rfc9989<\/a><\/li><li id=\"source-4\">ANSSI \u2013 Recommandations relatives \u00e0 l\u2019interconnexion d\u2019un syst\u00e8me d\u2019information \u00e0 internet, v3.0 (19 juni 2020), \u00a7 5.4 \u2014 <a href=\"https:\/\/messervices.cyber.gouv.fr\/guides\/recommandations-relatives-linterconnexion-dun-si-internet\" target=\"_blank\" rel=\"noopener\">messervices.cyber.gouv.fr\/guides\/recommandations-relatives-linterconnexion-dun-si-internet<\/a><\/li><li id=\"source-5\">Google \u2013 Consignes pour les exp\u00e9diteurs de messages \u2014 <a href=\"https:\/\/support.google.com\/a\/answer\/81126?hl=fr\" target=\"_blank\" rel=\"noopener\">support.google.com\/a\/answer\/81126?hl=fr<\/a><\/li><li id=\"source-6\">Yahoo \u2013 Sender Best Practices \u2014 <a href=\"https:\/\/senders.yahooinc.com\/best-practices\/\" target=\"_blank\" rel=\"noopener\">senders.yahooinc.com\/best-practices\/<\/a><\/li><li id=\"source-7\">Microsoft \u2013 Outlook.com Policies, Practices, and Guidelines \u2014 <a href=\"https:\/\/substrate.office.com\/ip-domain-management-snds\/Postmaster\/Policies\" target=\"_blank\" rel=\"noopener\">substrate.office.com\/ip-domain-management-snds\/Postmaster\/Policies<\/a><\/li><\/ol><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":7895,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"SPF, DKIM en DMARC voor Europese kmo's | IT CyberWall","_seopress_titles_desc":"SPF, DKIM en DMARC uitgelegd, de eisen van Google, Yahoo en Microsoft, en stap voor stap instellen om de e-mail van uw kmo in Europa te 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dkim dmarc,dmarc instellen,zakelijke e-mail beveiligen 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