{"id":5579,"date":"2026-06-02T18:09:39","date_gmt":"2026-06-02T11:09:39","guid":{"rendered":"https:\/\/clicksuccess.net\/setup-dkim-spf-dmarc-mailwizz-deliverability\/"},"modified":"2026-06-11T00:17:36","modified_gmt":"2026-06-10T17:17:36","slug":"thiet-lap-dkim-spf-dmarc-mailwizz-kha-nang-gui","status":"publish","type":"post","link":"https:\/\/clicksuccess.net\/vi\/setup-dkim-spf-dmarc-mailwizz-deliverability\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn thi\u1ebft l\u1eadp DKIM, SPF v\u00e0 DMARC trong MailWizz \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng g\u1eedi email"},"content":{"rendered":"<p>You&#8217;ve built a beautiful email campaign. Your subject line is compelling. Your content is valuable. And yet \u2014 your open rates are terrible.<\/p>\n<p>The problem might not be your content. It might be your authentication.<\/p>\n<p>If you&#8217;re sending emails through MailWizz without proper DKIM, SPF, and DMARC setup, you&#8217;re essentially telling mailbox providers &quot;I&#8217;m not sure who I am.&quot; And when Gmail, Outlook, or Yahoo aren&#8217;t sure, they err on the side of caution \u2014 straight into the spam folder.<\/p>\n<p>Let&#8217;s fix that.<\/p>\n<h2>Why Email Authentication Matters for MailWizz Users<\/h2>\n<p>Email authentication is like showing ID when you enter a building. Without it, the security guard has no idea if you belong there.<\/p>\n<p><strong>DKIM<\/strong> (DomainKeys Identified Mail) adds a digital signature to your emails. Receiving servers check this signature against your domain&#8217;s DNS records to verify the email hasn&#8217;t been tampered with.<\/p>\n<p><strong>SPF<\/strong> (Sender Policy Framework) publishes a list of servers that are allowed to send emails on behalf of your domain. If someone tries to send from an unauthorized server, SPF flags it.<\/p>\n<p><strong>DMARC<\/strong> (Domain-based Message Authentication, Reporting &amp; Conformance) tells receiving servers what to do when DKIM or SPF checks fail \u2014 and sends you reports about who&#8217;s trying to send emails using your domain.<\/p>\n<p>Together, these three protocols form a powerful defense against spoofing and phishing. And they&#8217;re essential for any MailWizz user who wants reliable inbox placement.<\/p>\n<h2>What Happens Without Proper Authentication<\/h2>\n<p>Let&#8217;s be real for a moment. You can have the best email content in the world, but if your authentication is broken:<\/p>\n<ul>\n<li><strong>Gmail flags your domain<\/strong> \u2014 Your emails get the dreaded red &quot;?&quot; in Gmail<\/li>\n<li><strong>Spam placement increases<\/strong> \u2014 Unauthenticated emails are suspicious by default<\/li>\n<li><strong>Sender reputation suffers<\/strong> \u2014 Bounce rates and spam complaints increase<\/li>\n<li><strong>Deliverability becomes unpredictable<\/strong> \u2014 Some emails go through, others don&#8217;t, and you never know why<\/li>\n<li><strong>Domain spoofing becomes possible<\/strong> \u2014 Anyone can fake your domain and send phishing emails<\/li>\n<\/ul>\n<p>I&#8217;ve seen legitimate businesses with great content struggle for months, only to discover the root cause was a missing SPF record. Authentication isn&#8217;t optional \u2014 it&#8217;s table stakes.<\/p>\n<h2>Setting Up DKIM in MailWizz with Amazon SES<\/h2>\n<p>If you&#8217;re using Amazon SES as your delivery server in MailWizz, DKIM is handled through Amazon&#8217;s domain verification process. Here&#8217;s how it works:<\/p>\n<h3>Step 1: Verify Your Domain in Amazon SES<\/h3>\n<p>Amazon generates a set of DKIM records when you add a domain. Usually three TXT records, each containing a unique DKIM key.<\/p>\n<h3>Step 2: Add Records to Your DNS<\/h3>\n<p>This is where the <a href=\"https:\/\/clicksuccess.net\/downloads\/verify-sending-domain-for-mailwizz\/\">Verify Sending Domain With Amazon SES for Mailwizz<\/a> extension becomes invaluable. Instead of copying long DKIM values manually from the AWS console, the extension displays them inside MailWizz with one-click copy buttons.<\/p>\n<p>The DKIM records look something like this:<\/p>\n<pre><code>Record Type: TXT\nHost: [dkim-selector]._domainkey.yourdomain.com\nValue: &quot;v=DKIM1; h=sha256; k=rsa; p=MIGfMA0GCSqGSIb4DQEBAQUAA4GNADCBiQKBgQC...&quot;\n<\/code><\/pre>\n<h3>Step 3: Enable DKIM Signing in Amazon SES<\/h3>\n<p>Once your DNS records are published and verified, Amazon SES automatically signs all outgoing emails with DKIM. No additional MailWizz configuration is needed.<\/p>\n<h2>Setting Up SPF for Your MailWizz Sending Domain<\/h2>\n<p>SPF is simpler than DKIM but just as important. You add a single TXT record to your domain&#8217;s DNS.<\/p>\n<h3>The Basic SPF Record<\/h3>\n<p>For MailWizz users sending through Amazon SES:<\/p>\n<pre><code>v=spf1 include:amazonses.com ~all\n<\/code><\/pre>\n<p>This tells receiving servers: &quot;Amazon SES is authorized to send emails for this domain. If someone else tries, mark it as soft fail.&quot;<\/p>\n<p>If you&#8217;re also sending from other services (like a transactional email provider), include them too:<\/p>\n<pre><code>v=spf1 include:amazonses.com include:spf.your-other-service.com ~all\n<\/code><\/pre>\n<h3>Common SPF Mistakes<\/h3>\n<p><strong>Too many DNS lookups<\/strong> \u2014 SPF has a 10-lookup limit. If you include too many services, your SPF record becomes invalid.<\/p>\n<p><strong>Using -all too aggressively<\/strong> \u2014 Hard-failing everything can cause legitimate emails to bounce if you miss a sending source.<\/p>\n<p><strong>Forgetting to update<\/strong> \u2014 When you add a new sending service, update your SPF record. Otherwise, emails from the new service might be rejected.<\/p>\n<h2>Setting Up DMARC for MailWizz<\/h2>\n<p>DMARC builds on DKIM and SPF. It tells receiving servers: &quot;If authentication fails, here&#8217;s what to do.&quot;<\/p>\n<h3>The Basic DMARC Record<\/h3>\n<p>Add a TXT record at <code>_dmarc.yourdomain.com<\/code>:<\/p>\n<pre><code>v=DMARC1; p=none; rua=mailto:dmarc-reports@yourdomain.com\n<\/code><\/pre>\n<p><strong>Start with p=none<\/strong> \u2014 This puts you in monitoring mode. You&#8217;ll receive reports about authentication failures without affecting delivery.<\/p>\n<p>After a few weeks of monitoring:<\/p>\n<pre><code>v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@yourdomain.com\n<\/code><\/pre>\n<p>Then, when you&#8217;re confident everything is working:<\/p>\n<pre><code>v=DMARC1; p=reject; rua=mailto:dmarc-reports@yourdomain.com; pct=100\n<\/code><\/pre>\n<h3>What the DMARC Tags Mean<\/h3>\n<table>\n<thead>\n<tr>\n<th>Tag<\/th>\n<th>Purpose<\/th>\n<th>Example<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>v<\/td>\n<td>Protocol version<\/td>\n<td>v=DMARC1<\/td>\n<\/tr>\n<tr>\n<td>p<\/td>\n<td>Policy (none\/quarantine\/reject)<\/td>\n<td>p=quarantine<\/td>\n<\/tr>\n<tr>\n<td>rua<\/td>\n<td>Aggregated report email<\/td>\n<td>rua=mailto:reports@domain.com<\/td>\n<\/tr>\n<tr>\n<td>pct<\/td>\n<td>Percentage of emails to apply policy to<\/td>\n<td>pct=100<\/td>\n<\/tr>\n<tr>\n<td>sp<\/td>\n<td>Policy for subdomains<\/td>\n<td>sp=reject<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>The Complete Authentication Checklist<\/h2>\n<p>Use this checklist to verify your MailWizz setup:<\/p>\n<ul>\n<li>[ ] Amazon SES domain verification completed<\/li>\n<li>[ ] DKIM records added to DNS (3 TXT records for SES)<\/li>\n<li>[ ] DKIM status shows &quot;Success&quot; in Amazon SES<\/li>\n<li>[ ] SPF record includes <code>include:amazonses.com<\/code><\/li>\n<li>[ ] DMARC record created with <code>p=none<\/code> initially<\/li>\n<li>[ ] DMARC reporting email address configured<\/li>\n<li>[ ] Test email sent and checked with a tool like MXToolbox or Mail-Tester<\/li>\n<li>[ ] DMARC policy upgraded to <code>p=quarantine<\/code> after monitoring period<\/li>\n<\/ul>\n<h2>How the Right Tool Simplifies Everything<\/h2>\n<p>Managing all of this manually across the AWS console, your DNS provider, and MailWizz is possible \u2014 but it&#8217;s tedious. And when you&#8217;re onboarding new customers who don&#8217;t understand DNS, it becomes a support bottleneck.<\/p>\n<p>The <strong>Verify Sending Domain With Amazon SES for Mailwizz<\/strong> extension simplifies the entire workflow:<\/p>\n<ul>\n<li>Displays DKIM, SPF, DMARC, and MAIL FROM records in one place<\/li>\n<li>One-click copy for every record<\/li>\n<li>Automatic verification status checks<\/li>\n<li>Support for multiple domains<\/li>\n<li>Sending protection for unverified domains<\/li>\n<\/ul>\n<h2>Final Thoughts<\/h2>\n<p>Setting up DKIM, SPF, and DMARC in MailWizz isn&#8217;t just about checking boxes. It&#8217;s about building a foundation for reliable email delivery. Without these records, you&#8217;re gambling with your sender reputation.<\/p>\n<p>Take the time to set them up properly \u2014 or better yet, use tools that make the process seamless. Your inbox placement will thank you.<\/p>\n<p>Need a faster way to handle domain verification? Check out the <a href=\"https:\/\/clicksuccess.net\/downloads\/verify-sending-domain-for-mailwizz\/\">Verify Sending Domain extension<\/a> and give your MailWizz platform the authentication workflow it deserves.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You&#8217;ve built a beautiful email campaign. Your subject line is compelling. Your content is valuable. And yet \u2014 your open [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5895,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[103],"tags":[52,60],"class_list":["post-5579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-marketing","tag-email-deliverability","tag-sender-verification"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DKIM, SPF &amp; DMARC Setup for MailWizz: Complete Email Authentication Guide<\/title>\n<meta name=\"description\" content=\"Complete guide to DKIM, SPF and DMARC setup in MailWizz with Amazon SES. 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