{"id":39970,"date":"2026-03-09T14:52:46","date_gmt":"2026-03-09T07:52:46","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=39970"},"modified":"2026-05-18T13:40:54","modified_gmt":"2026-05-18T06:40:54","slug":"cach-cau-hinh-dkim-va-spf-cpanel","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/","title":{"rendered":"C\u1ea5u H\u00ecnh DKIM V\u00e0 SPF cPanel Gi\u00fap Email V\u00e0o Inbox 100%, \u0110\u01a1n Gi\u1ea3n"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#SPF-la-gi\" >SPF l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Co-che-hoat-dong-cua-SPF\" >C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SPF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Hau-qua-khi-khong-co-ban-ghi-SPF\" >H\u1eadu qu\u1ea3 khi kh\u00f4ng c\u00f3 b\u1ea3n ghi SPF<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#DKIM-la-gi\" >DKIM l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Luong-hoat-dong-cua-DKIM\" >Lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DKIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Tai-sao-DKIM-quan-trong-hon-SPF-trong-mot-so-truong-hop\" >T\u1ea1i sao DKIM quan tr\u1ecdng h\u01a1n SPF trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Huong-dan-cach-cau-hinh-DKIM-va-SPF-cPanel-su-dung-Nameserver-cua-Hosting\" >H\u01b0\u1edbng d\u1eabn c\u00e1ch c\u1ea5u h\u00ecnh DKIM v\u00e0 SPF cPanel\u00a0s\u1eed d\u1ee5ng Nameserver c\u1ee7a Hosting<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-1-Tim-den-cong-cu-Email-Deliverability\" >B\u01b0\u1edbc 1: T\u00ecm \u0111\u1ebfn c\u00f4ng c\u1ee5 Email Deliverability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-2-Quan-ly-ten-mien-can-cai-dat\" >B\u01b0\u1edbc 2: Qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ea7n c\u00e0i \u0111\u1eb7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-3-Cau-hinh-DKIM\" >B\u01b0\u1edbc 3: C\u1ea5u h\u00ecnh DKIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-4-Cau-hinh-SPF\" >B\u01b0\u1edbc 4: C\u1ea5u h\u00ecnh SPF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-5-Mo-Zone-Editor-trong-cPanel-de-them-ban-ghi-DNS\" >B\u01b0\u1edbc 5: M\u1edf Zone Editor trong cPanel \u0111\u1ec3 th\u00eam b\u1ea3n ghi DNS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-6-Thiet-lap-ban-ghi-DKIM-thu-cong-tren-cPanel\" >B\u01b0\u1edbc 6: Thi\u1ebft l\u1eadp b\u1ea3n ghi DKIM th\u1ee7 c\u00f4ng tr\u00ean cPanel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-7-Them-ban-ghi-SPF-thu-cong-trong-Zone-Editor\" >B\u01b0\u1edbc 7: Th\u00eam b\u1ea3n ghi SPF th\u1ee7 c\u00f4ng trong Zone Editor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Buoc-8-Kiem-tra-lai-trang-thai-DKIM-va-SPF-sau-khi-cau-hinh\" >B\u01b0\u1edbc 8: Ki\u1ec3m tra l\u1ea1i tr\u1ea1ng th\u00e1i DKIM v\u00e0 SPF sau khi c\u1ea5u h\u00ecnh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/cach-cau-hinh-dkim-va-spf-cpanel\/#Luu-y-cuc-ky-quan-trong-Ban-dang-quan-ly-DNS-o-dau\" >L\u01b0u \u00fd c\u1ef1c k\u1ef3 quan tr\u1ecdng: B\u1ea1n \u0111ang qu\u1ea3n l\u00fd DNS \u1edf \u0111\u00e2u?<\/a><\/li><\/ul><\/nav><\/div>\n<p>Khi g\u1eedi email t\u1eeb website ho\u1eb7c email doanh nghi\u1ec7p, \u0111\u00f4i khi b\u1ea1n s\u1ebd g\u1eb7p t\u00ecnh tr\u1ea1ng email <strong>b\u1ecb v\u00e0o Spam, kh\u00f4ng g\u1eedi \u0111\u01b0\u1ee3c ho\u1eb7c b\u1ecb Gmail c\u1ea3nh b\u00e1o kh\u00f4ng an to\u00e0n<\/strong>. Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn l\u00e0 <strong>domain ch\u01b0a c\u1ea5u h\u00ecnh x\u00e1c th\u1ef1c email \u0111\u00fang c\u00e1ch<\/strong>. Hai c\u01a1 ch\u1ebf quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 x\u00e1c th\u1ef1c email hi\u1ec7n nay l\u00e0 <strong>SPF v\u00e0 DKIM<\/strong>. N\u1ebfu b\u1ea1n \u0111ang d\u00f9ng hosting c\u00f3 <strong>cPanel<\/strong>, vi\u1ec7c c\u1ea5u h\u00ecnh hai b\u1ea3n ghi n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n.<\/p>\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, InterData s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n <strong>c\u00e1ch c\u1ea5u h\u00ecnh DKIM v\u00e0 SPF tr\u00ean cPanel chi ti\u1ebft t\u1eebng b\u01b0\u1edbc<\/strong>, \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch r\u00f5 <strong>t\u1ea1i sao c\u1ea7n b\u1eadt c\u00e1c thi\u1ebft l\u1eadp n\u00e0y<\/strong> \u0111\u1ec3 email ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"SPF-la-gi\"><\/span>SPF l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>SPF<\/strong> (Sender Policy Framework) l\u00e0 m\u1ed9t b\u1ea3n ghi DNS d\u1ea1ng TXT, x\u00e1c \u0111\u1ecbnh danh s\u00e1ch m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c ph\u00e9p g\u1eedi email nh\u00e2n danh t\u00ean mi\u1ec1n \u0111\u00f3.<\/p>\n<p>H\u00ecnh dung \u0111\u01a1n gi\u1ea3n: SPF gi\u1ed1ng nh\u01b0 danh s\u00e1ch nh\u00e2n vi\u00ean ch\u00ednh th\u1ee9c c\u1ee7a c\u00f4ng ty. Khi c\u00f3 th\u01b0 g\u1eedi \u0111i mang t\u00ean c\u00f4ng ty, b\u00ean nh\u1eadn c\u00f3 th\u1ec3 tra danh s\u00e1ch xem ng\u01b0\u1eddi g\u1eedi c\u00f3 trong danh s\u00e1ch h\u1ee3p l\u1ec7 kh\u00f4ng. N\u1ebfu kh\u00f4ng c\u00f3, th\u01b0 s\u1ebd b\u1ecb t\u1eeb ch\u1ed1i ho\u1eb7c \u0111\u00e1nh d\u1ea5u nghi ng\u1edd.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-39982\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/SPF-cPanel-1024x683.jpg\" alt=\"SPF cPanel\" width=\"800\" height=\"533\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/SPF-cPanel-1024x683.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/SPF-cPanel-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/SPF-cPanel-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/SPF-cPanel.jpg 1080w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Co-che-hoat-dong-cua-SPF\"><\/span>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SPF<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi m\u00e1y ch\u1ee7 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t email, m\u00e1y ch\u1ee7 \u0111\u00f3 s\u1ebd th\u1ef1c hi\u1ec7n truy v\u1ea5n DNS \u0111\u1ebfn t\u00ean mi\u1ec1n trong \u0111\u1ecba ch\u1ec9 ng\u01b0\u1eddi g\u1eedi. M\u00e1y ch\u1ee7 \u0111\u1ecdc b\u1ea3n ghi SPF \u0111\u1ec3 l\u1ea5y danh s\u00e1ch \u0111\u1ecba ch\u1ec9 IP v\u00e0 m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c ph\u00e9p g\u1eedi email.<\/p>\n<p>Sau \u0111\u00f3, \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 \u0111\u00e3 g\u1eedi email \u0111\u01b0\u1ee3c \u0111\u1ed1i chi\u1ebfu v\u1edbi danh s\u00e1ch trong b\u1ea3n ghi SPF. K\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 c\u00f3 th\u1ec3 l\u00e0 <strong>pass<\/strong> (h\u1ee3p l\u1ec7), <strong>fail<\/strong> (kh\u00f4ng h\u1ee3p l\u1ec7), <strong>softfail<\/strong> (nghi ng\u1edd) ho\u1eb7c <strong>neutral<\/strong> (kh\u00f4ng c\u00f3 k\u1ebft lu\u1eadn).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hau-qua-khi-khong-co-ban-ghi-SPF\"><\/span>H\u1eadu qu\u1ea3 khi kh\u00f4ng c\u00f3 b\u1ea3n ghi SPF<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu t\u00ean mi\u1ec1n kh\u00f4ng c\u00f3 b\u1ea3n ghi SPF, m\u00e1y ch\u1ee7 nh\u1eadn kh\u00f4ng c\u00f3 c\u01a1 s\u1edf \u0111\u1ec3 x\u00e1c minh email. K\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf:<\/p>\n<ul>\n<li>Email d\u1ec5 b\u1ecb Gmail, Outlook, Yahoo \u0111\u00e1nh d\u1ea5u l\u00e0 spam<\/li>\n<li>K\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 gi\u1ea3 m\u1ea1o \u0111\u1ecba ch\u1ec9 email t\u1eeb t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n (email spoofing)<\/li>\n<li>T\u1ef7 l\u1ec7 m\u1edf email marketing gi\u1ea3m nghi\u00eam tr\u1ecdng<\/li>\n<li>T\u00ean mi\u1ec1n c\u00f3 nguy c\u01a1 b\u1ecb \u0111\u01b0a v\u00e0o danh s\u00e1ch \u0111en (blacklist)<\/li>\n<\/ul>\n<p>Theo d\u1eef li\u1ec7u t\u1eeb Verizon Data Breach Investigations Report, h\u01a1n 90% cu\u1ed9c t\u1ea5n c\u00f4ng phishing b\u1eaft \u0111\u1ea7u t\u1eeb email gi\u1ea3 m\u1ea1o t\u00ean mi\u1ec1n h\u1ee3p l\u1ec7 \u2014 \u0111\u00e2y ch\u00ednh l\u00e0 l\u00fd do SPF tr\u1edf th\u00e0nh y\u00eau c\u1ea7u c\u01a1 b\u1ea3n cho b\u1ea5t k\u1ef3 t\u00ean mi\u1ec1n n\u00e0o ho\u1ea1t \u0111\u1ed9ng email.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"DKIM-la-gi\"><\/span>DKIM l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>DKIM<\/strong> (DomainKeys Identified Mail) l\u00e0 ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c email s\u1eed d\u1ee5ng c\u1eb7p kh\u00f3a m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng: <strong>kh\u00f3a ri\u00eang t\u01b0 (private key)<\/strong> l\u01b0u tr\u00ean m\u00e1y ch\u1ee7 g\u1eedi v\u00e0 <strong>kh\u00f3a c\u00f4ng khai (public key)<\/strong> \u0111\u0103ng k\u00fd trong DNS.<\/p>\n<p>Kh\u00e1c v\u1edbi SPF ch\u1ec9 ki\u1ec3m tra IP c\u1ee7a m\u00e1y ch\u1ee7 g\u1eedi, DKIM x\u00e1c th\u1ef1c n\u1ed9i dung email th\u00f4ng qua ch\u1eef k\u00fd s\u1ed1. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ngay c\u1ea3 khi email \u0111i qua nhi\u1ec1u m\u00e1y ch\u1ee7 trung gian, t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a th\u01b0 v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/p>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-39981\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-cPanel-1024x683.jpg\" alt=\"DKIM cPanel\" width=\"800\" height=\"533\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-cPanel-1024x683.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-cPanel-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-cPanel-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-cPanel.jpg 1080w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Luong-hoat-dong-cua-DKIM\"><\/span>Lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DKIM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Ph\u00eda g\u1eedi:<\/strong><\/p>\n<ol>\n<li>M\u00e1y ch\u1ee7 email t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb hash c\u1ee7a n\u1ed9i dung email (header v\u00e0 body)<\/li>\n<li>Gi\u00e1 tr\u1ecb hash \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a b\u1eb1ng private key \u0111\u1ec3 t\u1ea1o ch\u1eef k\u00fd s\u1ed1<\/li>\n<li>Ch\u1eef k\u00fd s\u1ed1 \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o header c\u1ee7a email d\u01b0\u1edbi tr\u01b0\u1eddng <code>DKIM-Signature<\/code><\/li>\n<\/ol>\n<p><strong>Ph\u00eda nh\u1eadn:<\/strong><\/p>\n<ol>\n<li>M\u00e1y ch\u1ee7 nh\u1eadn \u0111\u1ecdc tr\u01b0\u1eddng <code>DKIM-Signature<\/code> trong header email<\/li>\n<li>M\u00e1y ch\u1ee7 truy v\u1ea5n DNS \u0111\u1ec3 l\u1ea5y public key c\u1ee7a t\u00ean mi\u1ec1n ng\u01b0\u1eddi g\u1eedi<\/li>\n<li>Public key \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 gi\u1ea3i m\u00e3 ch\u1eef k\u00fd s\u1ed1, sau \u0111\u00f3 \u0111\u1ed1i chi\u1ebfu v\u1edbi hash c\u1ee7a n\u1ed9i dung nh\u1eadn \u0111\u01b0\u1ee3c<\/li>\n<li>N\u1ebfu hai gi\u00e1 tr\u1ecb kh\u1edbp nhau \u2192 email nguy\u00ean v\u1eb9n, \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Tai-sao-DKIM-quan-trong-hon-SPF-trong-mot-so-truong-hop\"><\/span>T\u1ea1i sao DKIM quan tr\u1ecdng h\u01a1n SPF trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF ch\u1ec9 ki\u1ec3m tra IP m\u00e1y ch\u1ee7 g\u1eedi, kh\u00f4ng b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c trong tr\u01b0\u1eddng h\u1ee3p email \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp (forward). Khi email b\u1ecb forward, \u0111\u1ecba ch\u1ec9 IP g\u1eedi thay \u0111\u1ed5i n\u00ean SPF c\u00f3 th\u1ec3 fail \u2014 nh\u01b0ng DKIM v\u1eabn gi\u1eef nguy\u00ean ch\u1eef k\u00fd g\u1ed1c v\u00e0 v\u1eabn pass ki\u1ec3m tra.<\/p>\n<p>Ngo\u00e0i ra, DKIM b\u1ea3o v\u1ec7 n\u1ed9i dung email kh\u1ecfi b\u1ecb can thi\u1ec7p gi\u1eefa \u0111\u01b0\u1eddng (man-in-the-middle). N\u1ebfu n\u1ed9i dung email b\u1ecb thay \u0111\u1ed5i d\u00f9 ch\u1ec9 m\u1ed9t k\u00fd t\u1ef1, ch\u1eef k\u00fd DKIM s\u1ebd kh\u00f4ng c\u00f2n h\u1ee3p l\u1ec7.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Huong-dan-cach-cau-hinh-DKIM-va-SPF-cPanel-su-dung-Nameserver-cua-Hosting\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e1ch c\u1ea5u h\u00ecnh DKIM v\u00e0 SPF cPanel\u00a0s\u1eed d\u1ee5ng Nameserver c\u1ee7a Hosting<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y, b\u1ea1n c\u1ea7n c\u00f3 t\u00e0i kho\u1ea3n \u0111\u0103ng nh\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng qu\u1ea3n tr\u1ecb hosting cPanel.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-1-Tim-den-cong-cu-Email-Deliverability\"><\/span>B\u01b0\u1edbc 1: T\u00ecm \u0111\u1ebfn c\u00f4ng c\u1ee5 Email Deliverability<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>\u0110\u0103ng nh\u1eadp v\u00e0o <strong>cPanel<\/strong>. Xem h\u01b0\u1edbng d\u1eabn \u0111\u0103ng nh\u1eadp cPanel <a href=\"https:\/\/interdata.vn\/blog\/cach-dang-nhap-cpanel\/\"><strong>t\u1ea1i \u0111\u00e2y<\/strong><\/a>.<\/li>\n<li>T\u1ea1i thanh t\u00ecm ki\u1ebfm, g\u00f5 ch\u1eef <strong>Email<\/strong> ho\u1eb7c k\u00e9o xu\u1ed1ng khu v\u1ef1c c\u00f4ng c\u1ee5 Email.<\/li>\n<li>Click ch\u1ecdn <strong>Email Deliverability<\/strong> (\u1ede c\u00e1c b\u1ea3n cPanel c\u0169, c\u00f4ng c\u1ee5 n\u00e0y c\u00f3 t\u00ean l\u00e0 Authentication).<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39971\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Tim-den-cong-cu-Email-Deliverability.png\" alt=\"T\u00ecm \u0111\u1ebfn c\u00f4ng c\u1ee5 Email Deliverability\" width=\"816\" height=\"495\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Tim-den-cong-cu-Email-Deliverability.png 816w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Tim-den-cong-cu-Email-Deliverability-300x182.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Tim-den-cong-cu-Email-Deliverability-768x466.png 768w\" sizes=\"auto, (max-width: 816px) 100vw, 816px\" \/><\/p>\n<p>Trong cPanel, Email Deliverability l\u00e0 khu v\u1ef1c trung t\u00e2m chuy\u00ean x\u1eed l\u00fd c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 uy t\u00edn c\u1ee7a email. N\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng qu\u00e9t xem t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t SPF\/DKIM chu\u1ea9n ch\u01b0a v\u00e0 c\u1ea3nh b\u00e1o b\u1eb1ng m\u00e0u s\u1eafc (V\u00e0ng\/\u0110\u1ecf l\u00e0 c\u00f3 l\u1ed7i).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-2-Quan-ly-ten-mien-can-cai-dat\"><\/span>B\u01b0\u1edbc 2: Qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ea7n c\u00e0i \u0111\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u1ea1i giao di\u1ec7n m\u1edbi, b\u1ea1n s\u1ebd th\u1ea5y danh s\u00e1ch c\u00e1c t\u00ean mi\u1ec1n. T\u00ecm t\u00ean mi\u1ec1n b\u1ea1n \u0111ang d\u00f9ng \u0111\u1ec3 g\u1eedi email v\u00e0 b\u1ea5m v\u00e0o n\u00fat <strong>Manage (Qu\u1ea3n l\u00fd)<\/strong> \u1edf b\u00ean ph\u1ea3i.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-39972\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Quan-ly-ten-mien-can-cai-dat-1024x169.png\" alt=\"Qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ea7n c\u00e0i \u0111\u1eb7t\" width=\"1020\" height=\"168\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Quan-ly-ten-mien-can-cai-dat-1024x169.png 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Quan-ly-ten-mien-can-cai-dat-300x50.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Quan-ly-ten-mien-can-cai-dat-768x127.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Quan-ly-ten-mien-can-cai-dat.png 1342w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-3-Cau-hinh-DKIM\"><\/span>B\u01b0\u1edbc 3: C\u1ea5u h\u00ecnh DKIM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u00e9o xu\u1ed1ng ph\u1ea7n c\u00f3 ch\u1eef <strong>DKIM<\/strong>. B\u1ea1n s\u1ebd th\u1ea5y tr\u1ea1ng th\u00e1i c\u1ee7a n\u00f3. Sao ch\u00e9p gi\u00e1 tr\u1ecb Name v\u00e0 Value c\u1ee7a DKIM.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39973\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM.png\" alt=\"DKIM\" width=\"653\" height=\"311\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM.png 653w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/DKIM-300x143.png 300w\" sizes=\"auto, (max-width: 653px) 100vw, 653px\" \/><\/p>\n<p>N\u1ebfu h\u1ec7 th\u1ed1ng b\u00e1o l\u1ed7i ho\u1eb7c ch\u01b0a c\u00e0i \u0111\u1eb7t, h\u00e3y l\u00e0m nh\u01b0 sau:<\/p>\n<ul>\n<li>B\u1ea5m v\u00e0o n\u00fat <strong>Install The Suggested Record<\/strong> (C\u00e0i \u0111\u1eb7t b\u1ea3n ghi \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t).<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39975\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/chon-Install-The-Suggested-Record.png\" alt=\"ch\u1ecdn Install The Suggested Record\" width=\"465\" height=\"303\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/chon-Install-The-Suggested-Record.png 465w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/chon-Install-The-Suggested-Record-300x195.png 300w\" sizes=\"auto, (max-width: 465px) 100vw, 465px\" \/><\/p>\n<p><span style=\"font-size: 14.4px;\">Khi b\u1ea1n b\u1ea5m n\u00fat n\u00e0y, cPanel \u0111ang l\u00e0m 2 vi\u1ec7c: M\u1ed9t l\u00e0 t\u1ea1o ra m\u1ed9t b\u1ed9 \u1ed5 kh\u00f3a &amp; ch\u00eca kh\u00f3a m\u00e3 h\u00f3a. Hai l\u00e0 n\u00f3 t\u1ef1 \u0111\u1ed9ng \u0111\u01b0a chi\u1ebfc &#8220;ch\u00eca kh\u00f3a c\u00f4ng khai&#8221; l\u00ean h\u1ec7 th\u1ed1ng T\u00ean mi\u1ec1n (DNS) c\u1ee7a b\u1ea1n. T\u1eeb nay, m\u1ecdi email g\u1eedi \u0111i s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c cPanel \u0111\u00f3ng d\u1ea5u DKIM.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-4-Cau-hinh-SPF\"><\/span>B\u01b0\u1edbc 4: C\u1ea5u h\u00ecnh SPF<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u00e9o ti\u1ebfp xu\u1ed1ng ph\u1ea7n <strong>SPF<\/strong>, Sao ch\u00e9p gi\u00e1 tr\u1ecb Name v\u00e0 Value c\u1ee7a DKIM. T\u01b0\u01a1ng t\u1ef1, n\u1ebfu ch\u01b0a h\u1ee3p l\u1ec7, b\u1ea1n h\u00e3y b\u1ea5m v\u00e0o:<\/p>\n<ul>\n<li>N\u00fat <strong>Install The Suggested Record<\/strong>.<\/li>\n<\/ul>\n<p style=\"text-align: left;\">B\u1edfi v\u00ec cPanel bi\u1ebft ch\u00ednh x\u00e1c \u0111\u1ecba ch\u1ec9 IP c\u1ee7a g\u00f3i hosting b\u1ea1n \u0111ang d\u00f9ng l\u00e0 g\u00ec. N\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u1ea1o ra m\u1ed9t \u0111o\u1ea1n m\u00e3 chu\u1ea9n. V\u00ed d\u1ee5: v=spf1 +mx +a +ip4:103.xxx.xxx.xxx ~all.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39976\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-SPF.png\" alt=\"C\u1ea5u h\u00ecnh SPF\" width=\"672\" height=\"287\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-SPF.png 672w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-SPF-300x128.png 300w\" sizes=\"auto, (max-width: 672px) 100vw, 672px\" \/><\/p>\n<p><strong>Gi\u1ea3i m\u00e3 \u0111o\u1ea1n m\u00e3 SPF tr\u00ean \u0111\u1ec3 b\u1ea1n t\u1ef1 tin l\u00e0m ch\u1ee7 h\u1ec7 th\u1ed1ng:<\/strong><\/p>\n<ul>\n<li><strong>v=spf1<\/strong>: Khai b\u00e1o v\u1edbi Gmail \u0111\u00e2y l\u00e0 b\u1ea3n ghi SPF phi\u00ean b\u1ea3n 1.<\/li>\n<li><strong>+mx +a<\/strong>: Cho ph\u00e9p m\u00e1y ch\u1ee7 web (A record) v\u00e0 m\u00e1y ch\u1ee7 mail (MX record) c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c g\u1eedi email.<\/li>\n<li><strong>+ip4<\/strong>:&#8230;: C\u1ee5 th\u1ec3 h\u00f3a \u0111\u1ecba ch\u1ec9 IP c\u1ee7a Hosting.<\/li>\n<li><strong>~all (R\u1ea5t quan tr\u1ecdng)<\/strong>: D\u1ea5u ng\u00e3 ~ ngh\u0129a l\u00e0 &#8220;Soft Fail&#8221; (L\u1ed7i nh\u1eb9). N\u1ebfu c\u00f3 ai \u0111\u00f3 ngo\u00e0i danh s\u00e1ch n\u00e0y g\u1eedi th\u01b0 m\u1ea1o danh b\u1ea1n, h\u00e3y c\u1ee9 nh\u1eadn th\u01b0 nh\u01b0ng \u0111\u00e1nh d\u1ea5u l\u00e0 Spam.<\/li>\n<\/ul>\n<p>Nh\u1eefng th\u00f4ng tin n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf b\u01b0\u1edbc ti\u1ebfp theo, v\u00ec v\u1eady h\u00e3y \u0111\u1ea3m b\u1ea3o b\u1ea1n copy \u0111\u1ea7y \u0111\u1ee7 to\u00e0n b\u1ed9 chu\u1ed7i k\u00fd t\u1ef1 c\u1ee7a t\u1eebng gi\u00e1 tr\u1ecb \u0111\u1ec3 tr\u00e1nh sai s\u00f3t khi c\u1ea5u h\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-5-Mo-Zone-Editor-trong-cPanel-de-them-ban-ghi-DNS\"><\/span>B\u01b0\u1edbc 5: M\u1edf Zone Editor trong cPanel \u0111\u1ec3 th\u00eam b\u1ea3n ghi DNS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Quay tr\u1edf l\u1ea1i trang giao di\u1ec7n ch\u00ednh c\u1ee7a <strong>cPanel<\/strong>.<\/p>\n<p>Ti\u1ebfp theo, t\u00ecm \u0111\u1ebfn m\u1ee5c <strong>Domains<\/strong>, sau \u0111\u00f3 nh\u1ea5n ch\u1ecdn <strong>Zone Editor<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39977\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Zone-Editor-1.png\" alt=\"Ch\u1ecdn Zone Editor\" width=\"755\" height=\"260\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Zone-Editor-1.png 755w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Zone-Editor-1-300x103.png 300w\" sizes=\"auto, (max-width: 755px) 100vw, 755px\" \/><\/p>\n<p>Khi giao di\u1ec7n <strong>Zone Editor<\/strong> xu\u1ea5t hi\u1ec7n, h\u00e3y nh\u1ea5n <strong>Manage<\/strong> t\u1ea1i domain m\u00e0 b\u1ea1n mu\u1ed1n c\u1ea5u h\u00ecnh. Sau \u0111\u00f3 ch\u1ecdn <strong>Add Record<\/strong> \u0111\u1ec3 ti\u1ebfn h\u00e0nh th\u00eam b\u1ea3n ghi DNS m\u1edbi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39978\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Add-Record.png\" alt=\"Ch\u1ecdn Add Record\" width=\"499\" height=\"229\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Add-Record.png 499w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Chon-Add-Record-300x138.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-6-Thiet-lap-ban-ghi-DKIM-thu-cong-tren-cPanel\"><\/span>B\u01b0\u1edbc 6: Thi\u1ebft l\u1eadp b\u1ea3n ghi DKIM th\u1ee7 c\u00f4ng tr\u00ean cPanel<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Name:<\/strong> D\u00e1n gi\u00e1 tr\u1ecb <strong>Name<\/strong> \u0111\u00e3 sao ch\u00e9p \u1edf b\u01b0\u1edbc 3. N\u1ebfu \u1edf cu\u1ed1i gi\u00e1 tr\u1ecb c\u00f3 d\u1ea5u ch\u1ea5m \u201c.\u201d th\u00ec h\u00e3y x\u00f3a d\u1ea5u ch\u1ea5m n\u00e0y tr\u01b0\u1edbc khi l\u01b0u.<\/li>\n<li><strong>Type:<\/strong> Ch\u1ecdn <strong>TXT<\/strong>.<\/li>\n<li><strong>Record:<\/strong> D\u00e1n gi\u00e1 tr\u1ecb <strong>Value<\/strong> \u0111\u00e3 sao ch\u00e9p \u1edf b\u01b0\u1edbc 3.<\/li>\n<\/ul>\n<p>Sau khi ho\u00e0n t\u1ea5t, nh\u1ea5n <strong>Save Record<\/strong> \u0111\u1ec3 l\u01b0u b\u1ea3n ghi DKIM.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-39979\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-DKIM-1024x123.png\" alt=\"C\u1ea5u h\u00ecnh b\u1ea3n ghi DKIM\" width=\"1020\" height=\"123\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-DKIM-1024x123.png 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-DKIM-300x36.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-DKIM-768x92.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-DKIM.png 1223w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-7-Them-ban-ghi-SPF-thu-cong-trong-Zone-Editor\"><\/span>B\u01b0\u1edbc 7: Th\u00eam b\u1ea3n ghi SPF th\u1ee7 c\u00f4ng trong Zone Editor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Name:<\/strong> D\u00e1n gi\u00e1 tr\u1ecb <strong>Name<\/strong> \u0111\u00e3 sao ch\u00e9p \u1edf b\u01b0\u1edbc 4. N\u1ebfu gi\u00e1 tr\u1ecb n\u00e0y c\u00f3 d\u1ea5u ch\u1ea5m \u201c.\u201d \u1edf cu\u1ed1i, h\u00e3y x\u00f3a d\u1ea5u ch\u1ea5m \u0111\u00f3 tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c.<\/li>\n<li><strong>Type:<\/strong> Ch\u1ecdn <strong>TXT<\/strong>.<\/li>\n<li><strong>Record:<\/strong> D\u00e1n gi\u00e1 tr\u1ecb <strong>Value<\/strong> \u0111\u00e3 sao ch\u00e9p \u1edf b\u01b0\u1edbc 4.<\/li>\n<\/ul>\n<p>Cu\u1ed1i c\u00f9ng, nh\u1ea5n <strong>Save Record<\/strong> \u0111\u1ec3 l\u01b0u l\u1ea1i b\u1ea3n ghi SPF.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-39980\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-SPF-1024x120.png\" alt=\"C\u1ea5u h\u00ecnh b\u1ea3n ghi SPF\" width=\"1020\" height=\"120\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-SPF-1024x120.png 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-SPF-300x35.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-SPF-768x90.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/03\/Cau-hinh-ban-ghi-SPF.png 1261w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-8-Kiem-tra-lai-trang-thai-DKIM-va-SPF-sau-khi-cau-hinh\"><\/span>B\u01b0\u1edbc 8: Ki\u1ec3m tra l\u1ea1i tr\u1ea1ng th\u00e1i DKIM v\u00e0 SPF sau khi c\u1ea5u h\u00ecnh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Truy c\u1eadp l\u1ea1i m\u1ee5c <strong>Email Deliverability<\/strong> trong cPanel.<\/p>\n<p>Sau \u0111\u00f3 <strong>l\u00e0m m\u1edbi trang (nh\u1ea5n F5)<\/strong> \u0111\u1ec3 c\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i m\u1edbi nh\u1ea5t.<\/p>\n<p>N\u1ebfu qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp DKIM v\u00e0 SPF \u0111\u00e3 th\u1ef1c hi\u1ec7n \u0111\u00fang, h\u1ec7 th\u1ed1ng s\u1ebd hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i <strong>VALID<\/strong>.<\/p>\n<p>Sau kho\u1ea3ng 15\u201330 ph\u00fat, tr\u1ea1ng th\u00e1i DKIM c\u1ee7a t\u00ean mi\u1ec1n n\u00ean chuy\u1ec3n sang Valid.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Luu-y-cuc-ky-quan-trong-Ban-dang-quan-ly-DNS-o-dau\"><\/span>L\u01b0u \u00fd c\u1ef1c k\u1ef3 quan tr\u1ecdng: B\u1ea1n \u0111ang qu\u1ea3n l\u00fd DNS \u1edf \u0111\u00e2u?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>R\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi b\u1ea5m n\u00fat <strong>Install<\/strong> trong cPanel xong nh\u01b0ng email v\u1eabn r\u01a1i v\u00e0o Spam. L\u00fd do l\u00e0 v\u00ec b\u01b0\u1edbc tr\u00ean ch\u1ec9 hi\u1ec7u qu\u1ea3 <strong>N\u1ebeU t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n \u0111ang tr\u1ecf NameServer v\u1ec1 tr\u1ef1c ti\u1ebfp Hosting n\u00e0y<\/strong>.<\/p>\n<p>N\u1ebfu b\u1ea1n \u0111ang d\u00f9ng <strong>Cloudflare<\/strong> ho\u1eb7c qu\u1ea3n l\u00fd DNS \u1edf n\u01a1i mua t\u00ean mi\u1ec1n (M\u1eaft B\u00e3o, Tenten, iNet&#8230;), vi\u1ec7c b\u1ea5m n\u00fat trong cPanel l\u00e0 v\u00f4 ngh\u0129a v\u00ec cPanel kh\u00f4ng c\u00f3 quy\u1ec1n can thi\u1ec7p v\u00e0o Cloudflare.<\/p>\n<p><strong>C\u00e1ch gi\u1ea3i quy\u1ebft:<\/strong><\/p>\n<ol>\n<li>T\u1ea1i ph\u1ea7n DKIM v\u00e0 SPF trong cPanel (ch\u1ed7 b\u1ea1n v\u1eeba thao t\u00e1c), nh\u00ecn xu\u1ed1ng d\u01b0\u1edbi s\u1ebd th\u1ea5y 2 m\u1ee5c: <strong>Name<\/strong> (T\u00ean b\u1ea3n ghi) v\u00e0 <strong>Value<\/strong> (Gi\u00e1 tr\u1ecb b\u1ea3n ghi). \u0110\u00e2y l\u00e0 c\u00e1c b\u1ea3n ghi lo\u1ea1i <strong>TXT<\/strong>.<\/li>\n<li>B\u1ea1n <strong>copy<\/strong> (sao ch\u00e9p) c\u00e1c th\u00f4ng s\u1ed1 n\u00e0y.<\/li>\n<li>\u0110\u0103ng nh\u1eadp v\u00e0o Cloudflare (ho\u1eb7c trang qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n).<\/li>\n<li>T\u1ea1o 2 b\u1ea3n ghi <strong>TXT<\/strong> m\u1edbi v\u00e0 d\u00e1n c\u00e1c th\u00f4ng s\u1ed1 v\u1eeba copy v\u00e0o. L\u01b0u l\u1ea1i l\u00e0 xong!<\/li>\n<\/ol>\n<p>Qua c\u00e1c ph\u00e2n t\u00edch tr\u00ean, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng SPF v\u00e0 DKIM kh\u00f4ng ph\u1ea3i c\u1ea5u h\u00ecnh t\u00f9y ch\u1ecdn \u2014 \u0111\u00e2y l\u00e0 n\u1ec1n t\u1ea3ng b\u1eaft bu\u1ed9c \u0111\u1ec3 email t\u1eeb t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c tin c\u1eady v\u00e0 \u0111\u1ebfn \u0111\u00fang h\u1ed9p th\u01b0 ng\u01b0\u1eddi nh\u1eadn.<\/p>\n<p>Trong cPanel, c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 c\u1ea5u h\u00ecnh tr\u1ef1c ti\u1ebfp qua giao di\u1ec7n Email Deliverability m\u00e0 kh\u00f4ng c\u1ea7n can thi\u1ec7p th\u1ee7 c\u00f4ng v\u00e0o file c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7. Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb ch\u1ec9 c\u1ea7n bi\u1ebft \u0111\u00fang ch\u1ed7 v\u00e0 l\u00e0m \u0111\u00fang th\u1ee9 t\u1ef1.<\/p>\n<p>Vi\u1ec7c\u00a0c\u1ea5u h\u00ecnh DKIM v\u00e0 SPF cPanel\u00a0kh\u00f4ng h\u1ec1 kh\u00f3 n\u1ebfu b\u1ea1n hi\u1ec3u b\u1ea3n ch\u1ea5t c\u1ee7a n\u00f3. Ch\u1ec9 v\u1edbi v\u00e0i c\u00fa click chu\u1ed9t v\u00e0 khai b\u00e1o \u0111\u00fang b\u1ea3n ghi TXT, uy t\u00edn t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n trong m\u1eaft c\u00e1c \u00f4ng l\u1edbn nh\u01b0 Google, Microsoft s\u1ebd t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3. T\u1ef7 l\u1ec7 email v\u00e0o Inbox t\u1eeb \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o, gi\u00fap c\u00f4ng vi\u1ec7c kinh doanh c\u1ee7a b\u1ea1n tr\u1edf n\u00ean chuy\u00ean nghi\u1ec7p v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<div class=\"highlight-cta-box\"><strong>InterData<\/strong> cung c\u1ea5p d\u1ecbch v\u1ee5 Hosting t\u1ed1c \u0111\u1ed9 cao, h\u1ed7 tr\u1ee3 cPanel v\u1edbi h\u1ea1 t\u1ea7ng LiteSpeed v\u00e0 NVMe U.2 SSD, t\u00ednh n\u0103ng Email Deliverability trong cPanel \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n \u2014 b\u1ea1n c\u00f3 th\u1ec3 b\u1eadt DKIM v\u00e0 c\u1ea5u h\u00ecnh SPF ngay sau khi k\u00edch ho\u1ea1t t\u00e0i kho\u1ea3n hosting, kh\u00f4ng c\u1ea7n th\u00eam b\u01b0\u1edbc c\u00e0i \u0111\u1eb7t th\u1ee7 c\u00f4ng n\u00e0o.<br \/>\n<a href=\"https:\/\/interdata.vn\/thue-hosting\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>THAM KH\u1ea2O D\u1ecaCH V\u1ee4 HOSTING T\u1ed0C \u0110\u1ed8 CAO<\/span>\n\t<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Khi g\u1eedi email t\u1eeb website ho\u1eb7c email doanh nghi\u1ec7p, \u0111\u00f4i khi b\u1ea1n s\u1ebd g\u1eb7p t\u00ecnh tr\u1ea1ng email b\u1ecb v\u00e0o Spam, kh\u00f4ng g\u1eedi \u0111\u01b0\u1ee3c ho\u1eb7c b\u1ecb Gmail c\u1ea3nh b\u00e1o kh\u00f4ng an to\u00e0n. Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn l\u00e0 domain ch\u01b0a c\u1ea5u h\u00ecnh x\u00e1c th\u1ef1c email \u0111\u00fang c\u00e1ch. Hai c\u01a1 ch\u1ebf quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 x\u00e1c th\u1ef1c email<\/p>\n","protected":false},"author":11,"featured_media":39983,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[149],"tags":[],"class_list":["post-39970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-control-panel"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=39970"}],"version-history":[{"count":4,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39970\/revisions"}],"predecessor-version":[{"id":39987,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39970\/revisions\/39987"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/39983"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=39970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=39970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=39970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}