{"id":10442,"date":"2025-07-20T09:34:38","date_gmt":"2025-07-20T09:34:38","guid":{"rendered":"https:\/\/mailbluster.com\/blog\/?p=10442"},"modified":"2026-01-11T09:17:06","modified_gmt":"2026-01-11T09:17:06","slug":"connect-smtp-providers-with-mailbluster","status":"publish","type":"post","link":"https:\/\/mailbluster.com\/blog\/connect-smtp-providers-with-mailbluster","title":{"rendered":"How to Connect MailBluster with Postmark, Mailgun &#038; SMTP2GO"},"content":{"rendered":"\n<p>Mailgun, Postmark, and SMTP2GO are reliable email delivery services to send transactional and marketing emails through SMTP. If you need a hassle-free and straight-to-the-point formula to connect SMTP, these email delivery services are the supreme solution for your email marketing tool.&nbsp;<\/p>\n\n\n\n<p>Let\u2019s connect Mailgun and Postmark SMTP with MailBluster.<\/p>\n\n\n\n<h4>Table of contents<\/h4>\n\n\n\n<ul><li><a href=\"#connect-mailbluster-with-smtp-providers\">Connect MailBluster with Mailgun and Postmark Step-by-Step<\/a><\/li><li><a href=\"#connect-postmark-with-mailbluster\">Connect Postmark with MailBluster<\/a><\/li><li><a href=\"#connect-mailbluster-with-mailgun\">Connect Mailgun with MailBluster<\/a><\/li><li><a href=\"#connect-mailbluster-with-smtp2go\">Connect SMTP2GO with MailBluster<\/a><\/li><li><a href=\"#wrap-up\">Wrap Up<\/a><\/li><\/ul>\n\n\n\n<h2 id=\"connect-mailbluster-with-smtp-providers\"><strong>Connect MailBluster with SMTP Providers: Step-by-step<\/strong> Guide<\/h2>\n\n\n\n<p>Connecting Mailgun, Postmark and SMTP2GO with MailBluster requires your time, managing server connections, and adding records to your DNS server. Here, we will show you the step-by-step procedure for connecting Mailgun and Postmark with MailBluster.&nbsp;<\/p>\n\n\n\n<p>Let\u2019s see how to connect Postmark with MailBluster.<\/p>\n\n\n\n<h3 id=\"connect-postmark-with-mailbluster\"><strong>Connect Postmark with MailBluster<\/strong><\/h3>\n\n\n\n<p>You can either watch the Postmark video tutorial or follow our step-by-step process mentioned here. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to connect MailBluster with Postmark | SMTP Setup\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/-yC5eRjBFRQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h4><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">1<\/span><\/strong>: <strong>Create server and add the token<\/strong><\/h4>\n\n\n\n<p>First of all, sign in to your <a href=\"https:\/\/account.postmarkapp.com\/login\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Postmark<\/a> account.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1.jpg\"><img loading=\"lazy\" width=\"942\" height=\"779\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1.jpg\" alt=\"Postmark log in\" class=\"wp-image-10921\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1.jpg 942w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-300x248.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-768x635.jpg 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Click &#8220;<strong>Create Server&#8221;<\/strong> from the top right.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.gif\"><img loading=\"lazy\" width=\"1024\" height=\"614\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1024x614.gif\" alt=\"Postmark create server\" class=\"wp-image-10922\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1024x614.gif 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-300x180.gif 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-768x460.gif 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Provide a name for the server and click <strong>Create server<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.1.gif\"><img loading=\"lazy\" width=\"1024\" height=\"614\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.1-1024x614.gif\" alt=\"Postmark Name and Create server\" class=\"wp-image-10925\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.1-1024x614.gif 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.1-300x180.gif 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.1-768x460.gif 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Now, click the server you have just created and navigate to <strong>API Tokens<\/strong> and copy the <strong>Server API tokens<\/strong>. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"387\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1024x387.jpg\" alt=\"Server's API Token Postmark\" class=\"wp-image-10926\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1024x387.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-300x113.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-768x290.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1200x454.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5.jpg 1479w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Now, Sign in to your MailBluster account. Go to <strong>Settings<\/strong>&gt;<strong>SMTP Providers<\/strong>&gt;click <strong>Postmark<\/strong> SMTP and paste the token into the <strong>Server Token<\/strong> field.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"604\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1024x604.jpg\" alt=\"Server Token pasting on MailBluster\" class=\"wp-image-10928\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1024x604.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-300x177.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-768x453.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1200x707.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6.jpg 1457w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<h4><br><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">2<\/span>:<\/strong> <strong>Add the API and Domain<\/strong>&nbsp;<\/h4>\n\n\n\n<p>Now, go back to your Postmark account. Click <strong>Account<\/strong>&gt;<strong>API Tokens<\/strong> and copy the <strong>Account API tokens <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"565\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-1024x565.jpg\" alt=\"API Tokens generation on Postmark\" class=\"wp-image-10930\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-1024x565.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-300x166.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-768x424.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-1200x662.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3.jpg 1453w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br><br>Sign in to <strong>MailBluster <\/strong>to add the <strong>API token<\/strong> to Postmark SMTP from <strong>Settings\u2192 SMTP Providers. <\/strong>If you get both token fields, click<strong> Save connection.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"622\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4-1024x622.jpg\" alt=\"Account token for Postmark on MailBluster\" class=\"wp-image-10931\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4-1024x622.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4-300x182.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4-768x467.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4-1200x729.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/4.jpg 1466w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Now, add your domain to Postmark\u2019s<strong> Sender signatures. <\/strong>Select the<strong> Send from any email address on a domain and <\/strong>click on<strong> Add Domain. <\/strong>This will let us add the DKIM and DNS records.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"431\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2-1024x431.jpg\" alt=\"Add domain or sender signature on Postmark\" class=\"wp-image-10932\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2-1024x431.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2-300x126.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2-768x323.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2-1200x505.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.2.jpg 1427w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>A domain adding window will pop up, add your domain there, and click<strong> Verify domain. <\/strong>This will lead us to<strong> <\/strong>the<strong> DNS Settings <\/strong>page<strong>.&nbsp;<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/Adding-domain.gif\"><img loading=\"lazy\" width=\"584\" height=\"350\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/Adding-domain.gif\" alt=\"Adding and verifying domain\" class=\"wp-image-10937\"\/><\/a><\/figure><\/div>\n\n\n\n<h4><br><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">3<\/span>: Add DNS records to the server<\/strong><\/h4>\n\n\n\n<p>Now, you need to verify the<strong> DKIM <\/strong>and <strong>Return-Path <\/strong>values<strong>. <\/strong>Go to <strong>Settings<\/strong> \u2192 <strong>Senders <\/strong>on <strong>MailBluster <\/strong>and click the added domain<strong>.&nbsp;<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7.gif\"><img loading=\"lazy\" width=\"751\" height=\"450\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7.gif\" alt=\"Senders on MailBluster\" class=\"wp-image-10940\"\/><\/a><\/figure>\n\n\n\n<p><br>This will show you the DNS records. Copy and paste all the <strong>Names <\/strong>and <strong>Values <\/strong>to your <strong>DNS server<\/strong> to verify your domain on <strong>Postmark<\/strong>.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"663\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1024x663.jpg\" alt=\"DNS records and Settings on MailBluster\" class=\"wp-image-10941\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1024x663.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-300x194.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-768x497.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1200x776.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8.jpg 1442w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Take the <strong>DKIM<\/strong>, <strong>SPF<\/strong>, and <strong>Return-path <\/strong>records value from MailBluster and paste them into the DNS server by opening <strong>Add records<\/strong> and adding <strong>CNAME<\/strong>, <strong>TXT <\/strong>types.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"508\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-1024x508.jpg\" alt=\"DNS management for the Postmark\" class=\"wp-image-10942\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-1024x508.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-300x149.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-768x381.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-1536x762.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9-1200x596.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/9.jpg 1892w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Wait for a minute, and click <strong>Refresh<\/strong>, you will see the Verified green <strong>Success <\/strong>on MailBluster.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"651\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1024x651.jpg\" alt=\"DNS records are verfied on MailBluster\" class=\"wp-image-10943\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1024x651.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-300x191.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-768x488.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1200x763.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11.jpg 1471w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Click <strong>&#8220;Verify&#8221;<\/strong> on Postmark\u2019s DNS settings, and it will display <strong>&#8220;Verified&#8221; <\/strong>in green. Now, Postmark and MailBluster are connected.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"708\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1-1024x708.jpg\" alt=\"DNS Settings are verified\" class=\"wp-image-10944\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1-1024x708.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1-300x207.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1-768x531.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1-1200x830.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/10.1.jpg 1351w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br><\/p>\n\n\n\n<div class=\"wp-container-1 wp-block-buttons\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-bright-blue-background-color has-background\" href=\"https:\/\/app.mailbluster.com\/auth\/signin\" target=\"_blank\" rel=\"noreferrer noopener\">Connect postmark smtp with mailbluster now! <\/a><\/div>\n<\/div>\n\n\n\n<p><br>Now, let\u2019s head to connect MailBluster with Mailgun this time.<\/p>\n\n\n\n<h3 id=\"connect-mailbluster-with-mailgun\"><strong>Connect MailBluster with Mailgun<\/strong><\/h3>\n\n\n\n<p>You can either watch the Mailgun video tutorial or follow our step-by-step process mentioned here. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to connect MailBluster with Mailgun | SMTP Setup\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/bvjwaL3U4bE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h4><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">1<\/span>: Sign in and Add your Domain<\/strong><\/h4>\n\n\n\n<p>Sign in to your <a href=\"https:\/\/login.mailgun.com\/login\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Mailgun<\/a> account <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"514\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1-1024x514.jpg\" alt=\"Mailgun homepage\" class=\"wp-image-12223\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1-1024x514.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1-300x151.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1-768x386.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1-1200x603.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/1-1.jpg 1296w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Click on <strong>Send<\/strong>\u2192 <strong>Domains<\/strong> and click on <strong>Add new domain<\/strong> in the top right corner. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"354\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1024x354.jpg\" alt=\"Add new domain in Mailgun\" class=\"wp-image-12224\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1024x354.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-300x104.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-768x266.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1536x532.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2-1200x415.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/2.jpg 1641w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>This will take you to the <strong>Add New Domain<\/strong> window. Type your <strong>Domain name<\/strong>, select <strong>Domain region<\/strong>, <strong>IP assignment option<\/strong>, and keep the <strong>Advanced settings<\/strong> the same as it is.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3.gif\"><img loading=\"lazy\" width=\"1024\" height=\"614\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-1024x614.gif\" alt=\"Adding New Domain on Mailgun\" class=\"wp-image-12225\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-1024x614.gif 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-300x180.gif 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/3-768x460.gif 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<h4><br><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">2<\/span>: Create API Key<\/strong><\/h4>\n\n\n\n<p>To create an <strong>API key<\/strong>, click the down arrow sign on your profile from the top right corner and click <strong>API Security<\/strong> from the dropdown.&nbsp;&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeZXjIiZJDdIig_DTKlgS9Tkhtauo7zcAXrWHuDYa8tYU1yvckFGfPYbU1JqbOn6-myxng00X2MEfVgRCvJAALldo3gyMfQfjMIw237wZCs4eTVUok2V7H07I7Vex4pjERjSiVP?key=qXwB8KvngFv-abYXkbjdmQ\"><img src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeZXjIiZJDdIig_DTKlgS9Tkhtauo7zcAXrWHuDYa8tYU1yvckFGfPYbU1JqbOn6-myxng00X2MEfVgRCvJAALldo3gyMfQfjMIw237wZCs4eTVUok2V7H07I7Vex4pjERjSiVP?key=qXwB8KvngFv-abYXkbjdmQ\" alt=\"API security on Mailgun\"\/><\/a><\/figure>\n\n\n\n<p><br>On the <strong>API Keys<\/strong> page, click <strong>Create API Key<\/strong>, and a pop-up window will appear. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"448\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-1024x448.jpg\" alt=\"Create API key on Mailgun\" class=\"wp-image-12226\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-1024x448.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-300x131.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-768x336.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-1536x672.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1-1200x525.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/5-1.jpg 1890w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Write your suitable API Key <strong>Description<\/strong> there. Click on <strong>Create Key<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"483\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-1024x483.jpg\" alt=\"Adding description to the API key on Mailgun\" class=\"wp-image-12227\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-1024x483.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-300x141.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-768x362.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-1536x724.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1-1200x565.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/6-1.jpg 1634w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Copy the <strong>New API key<\/strong> <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"382\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-1024x382.jpg\" alt=\"Getting New API key on Mailgun\" class=\"wp-image-12228\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-1024x382.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-300x112.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-768x287.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-1536x574.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7-1200x448.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/7.jpg 1639w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Paste it into Mailgun\u2019s SMTP settings on MailBluster&#8217;s <strong>SMTP Providers<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"652\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1-1024x652.jpg\" alt=\"SMTP providers API key pasting\" class=\"wp-image-12229\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1-1024x652.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1-300x191.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1-768x489.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1-1200x764.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/8-1.jpg 1469w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<h4><br><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">3<\/span>: Add Domain Name on MailBluster&nbsp;<\/strong><\/h4>\n\n\n\n<p>Type your domain name in the Mailgun SMTP settings field on MailBluster, select the <strong>Region, <\/strong>and click <strong>Save connection.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeXnJRhL5eWjIg3VElfLpwMwz7k3Hsic9H77Viq8LYEvpU0NQMX9VuKsqC3UrSlJxkeWVsMJn7Xc3pSFCrIw8XR5ys-tf_XkTBa7zkM30EQqg_yzL1bE6SoJwQj0Ec0WGWJCtEatQ?key=qXwB8KvngFv-abYXkbjdmQ\"><img src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeXnJRhL5eWjIg3VElfLpwMwz7k3Hsic9H77Viq8LYEvpU0NQMX9VuKsqC3UrSlJxkeWVsMJn7Xc3pSFCrIw8XR5ys-tf_XkTBa7zkM30EQqg_yzL1bE6SoJwQj0Ec0WGWJCtEatQ?key=qXwB8KvngFv-abYXkbjdmQ\" alt=\"Save connection on Mailgun SMTP MailBluster\"\/><\/a><\/figure>\n\n\n\n<h4><br><strong>Step <span style=\"margin-right:10px;\" class=\"badge-round\">4<\/span>: Add DNS records to DNS server<\/strong><\/h4>\n\n\n\n<p>Now, go to <strong>Senders <\/strong>on MailBluster and select the domain you have just saved in the <strong>Mailgun <\/strong>settings.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"499\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1-1024x499.jpg\" alt=\"DNS records on MailBluster\" class=\"wp-image-12230\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1-1024x499.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1-300x146.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1-768x375.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1-1200x585.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/11-1.jpg 1468w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>See the <strong>Sending records<\/strong> on DNS settings, and input all the <strong>Names <\/strong>and <strong>Values <\/strong>to the DNS server by opening the <strong>Add record<\/strong>. After some time, it will display <strong>&#8216;Success&#8217; <\/strong>on MailBluster\u2019s DNS settings.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"508\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-1024x508.jpg\" alt=\"Cloudflare DNS management\" class=\"wp-image-12231\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-1024x508.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-300x149.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-768x381.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-1536x762.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12-1200x596.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/12.jpg 1890w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Mailgun&#8217;s DNS records are successfully inserted into the DNS management system.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"300\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13-1024x300.jpg\" alt=\"DNS management for mailgun on Cloudflare\" class=\"wp-image-12232\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13-1024x300.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13-300x88.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13-768x225.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13-1200x352.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/13.jpg 1279w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Now, go to Mailgun and select <strong>Send <\/strong>\u2192 <strong>Domain settings <\/strong>for the<strong> Receiving records, Tracking, <\/strong>and<strong> Authentication <\/strong>records.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"449\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-1024x449.jpg\" alt=\"Mailgun DNS records \" class=\"wp-image-12233\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-1024x449.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-300x132.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-768x337.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-1536x673.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15-1200x526.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/15.jpg 1891w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>Add all the <strong>Values <\/strong>to the DNS server by opening the &#8216;<strong>Add Records<\/strong>&#8216; section in your DNS management settings.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"407\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1024x407.jpg\" alt=\"Clouflare DNS management \" class=\"wp-image-12234\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1024x407.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-300x119.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-768x305.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1536x610.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1200x477.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18.jpg 1890w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>After adding values in the DNS server, click <strong>Verify <\/strong>to update the status of the values. The <strong>status <\/strong>will display as <strong>&#8216;Verified&#8217;<\/strong> and <strong>&#8216;Active&#8217;. <\/strong>Note that some values may take longer to verify within a short timeframe.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1.jpg\"><img loading=\"lazy\" width=\"1024\" height=\"476\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-1024x476.jpg\" alt=\"DNS records on Mailgun\" class=\"wp-image-12235\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-1024x476.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-300x139.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-768x357.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-1536x714.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1-1200x558.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/07\/18-1.jpg 1878w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/figure>\n\n\n\n<p><br>This way, MailBluster and Mailgun will be connected.&nbsp;<\/p>\n\n\n\n<div class=\"wp-container-2 wp-block-buttons\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-bright-blue-background-color has-background\" href=\"https:\/\/app.mailbluster.com\/auth\/signin\" target=\"_blank\" rel=\"noreferrer noopener\">connect mailgun smtp with mailbluster now!<\/a><\/div>\n<\/div>\n\n\n\n<h3 id=\"connect-mailbluster-with-smtp2go\"><strong>Connect MailBluster with SMTP2GO<\/strong><\/h3>\n\n\n\n<p>You can either watch the SMTP2GO video tutorial or follow our step-by-step process mentioned here. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to connect MailBluster with SMTP2GO | SMTP Setup\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/7qZHPru4lKA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h4><strong>Step 1: Sign in &amp; Add the API key<\/strong><\/h4>\n\n\n\n<p>Sign up on the <a href=\"https:\/\/www.smtp2go.com\/\">SMTP2GO<\/a> website. Go to the homepage and click on <strong>Sign Up. <\/strong>Fill in your work email and continue<strong>.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"839\" height=\"748\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/1.gif\" alt=\"Signing up with work email on SMTP2GO\" class=\"wp-image-10778\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>A pop-up appears, fill in the Full name, Company, and Password fields. Click <strong>Sign Up<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"891\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2-1024x891.jpg\" alt=\"Sign up form on SMTP2GO\" class=\"wp-image-10779\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2-1024x891.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2-300x261.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2-768x668.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/2.jpg 1075w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Next, sign in using your email and password, and click on <strong>Sending&gt;API Keys&gt;Add API Key.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"415\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-1024x415.jpg\" alt=\"API Keys on SMTP2GO\" class=\"wp-image-10780\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-1024x415.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-300x121.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-768x311.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-1536x622.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3-1200x486.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/3.jpg 1887w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>A new window will appear. Here, you can create an API while modifying the different settings.<strong> <\/strong>Check the necessary <strong>Permissions<\/strong>, <strong>Tracking &amp; Status<\/strong> in the <strong>Add API Key<\/strong> box and click on <strong>Add API Key. API Key <\/strong>is created!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1904\" height=\"547\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-1024x294.jpg\" alt=\"Adding API Key with settings on SMTP2GO\" class=\"wp-image-10781\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-1024x294.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-300x86.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-768x221.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-1536x441.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4-1200x345.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/4.jpg 1904w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Now, copy the created API Key by clicking on the small <strong>Copy <\/strong>button.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"302\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-1024x302.jpg\" alt=\"Copying API Key\" class=\"wp-image-10782\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-1024x302.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-300x88.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-768x226.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-1536x453.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5-1200x354.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/5.jpg 1906w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Sign in to MailBluster account and go to <strong>Settings<\/strong>&gt;<strong>SMTP Providers<\/strong>&gt;<strong>SMTP2GO<\/strong>. Paste the API Key and click <strong>Save provider<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"847\" height=\"450\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/6.gif\" alt=\"SMTP Providers section on MailBluster\" class=\"wp-image-10787\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4><strong>Step 2: Adding Verified Senders<\/strong><\/h4>\n\n\n\n<p>Go back to<strong> SMTP2GO. <\/strong>Click on<strong> Verified Senders&gt;Add sender domain&gt;Enter your domain&gt;Continue with this domain.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"443\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-1024x443.jpg\" alt=\"Verified Senders on SMTP2GO\" class=\"wp-image-10788\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-1024x443.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-300x130.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-768x332.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-1536x664.jpg 1536w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7-1200x519.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/7.jpg 1906w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4><strong>Step 3: Adding DNS records and Verify<\/strong><\/h4>\n\n\n\n<p>Now copy all the values and set the records to your DNS provider (e.g., Cloudflare, Namecheap).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"730\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1024x730.jpg\" alt=\"DNS records on Verified Senders on MailBluster\" class=\"wp-image-10789\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1024x730.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-300x214.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-768x548.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8.jpg 1154w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>After adding all the values to the DNS records, click on <strong>Verify<\/strong>, and all the values will show a green tick.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"833\" height=\"582\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1.jpg\" alt=\"Verifiying DNS records\" class=\"wp-image-10790\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1.jpg 833w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1-300x210.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/8-1-768x537.jpg 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4><strong>Step 4: Check DNS records on MailBluster<\/strong><\/h4>\n\n\n\n<p>Go back to MailBluster and go to <strong>Settings<\/strong>&gt;<strong>Senders<\/strong>&gt;<strong>vertical<\/strong> <strong>three dots ellipsis under your domain<\/strong>&gt;<strong>View sender.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"542\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9-1024x542.jpg\" alt=\"Senders records on MailBluster\" class=\"wp-image-10791\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9-1024x542.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9-300x159.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9-768x407.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9-1200x635.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/9.jpg 1483w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><br>Click<strong> Refresh. <\/strong>All the records will show<strong> Verified <\/strong>&amp; domain<strong> <\/strong>shows<strong> Success.<\/strong> Remember that Tracking records will take some time to show the <strong>Verified <\/strong>status. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"657\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10-1024x657.jpg\" alt=\"Verifying DNS records on MailBluster\" class=\"wp-image-10792\" srcset=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10-1024x657.jpg 1024w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10-300x192.jpg 300w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10-768x493.jpg 768w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10-1200x770.jpg 1200w, https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/10.jpg 1447w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Now, MailBluster and SMTP2GO are connected!<\/p>\n\n\n\n<p>If you have difficulty getting the <strong>Verified <\/strong>status, go back to your <strong>SMTP2GO account<\/strong>&gt;<strong>Sending<\/strong>&gt;<strong>Verified Senders<\/strong>&gt;click <strong>Verify<\/strong>. This will assist you in getting the verification status on MailBluster. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"833\" height=\"582\" src=\"https:\/\/mailbluster.com\/blog\/wp-content\/uploads\/2025\/08\/11.gif\" alt=\"\" class=\"wp-image-10795\"\/><\/figure>\n\n\n\n<h2 id=\"wrap-up\"><strong>Wrap Up<\/strong><\/h2>\n\n\n\n<p>Connecting MailBluster with Postmark, Mailgun &amp; SMTP2GO might seem daunting, but it doesn\u2019t take much technical expertise to work on the connection. Just follow this tutorial and input all the records systematically into the DNS server. For more assistance, you can follow the help section on <a href=\"https:\/\/mailbluster.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">MailBluster<\/a> or contact MailBluster <a href=\"https:\/\/mailbluster.com\/contact\" target=\"_blank\" rel=\"noreferrer noopener\">support<\/a>.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mailgun, Postmark, and SMTP2GO are reliable email delivery services to send transactional and marketing emails through SMTP. If you need a hassle-free and straight-to-the-point formula to connect SMTP, these email delivery services are the supreme solution for your email marketing tool.&nbsp; Let\u2019s connect Mailgun and Postmark SMTP with MailBluster. Table of contents Connect MailBluster with &hellip; <a href=\"https:\/\/mailbluster.com\/blog\/connect-smtp-providers-with-mailbluster\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;How to Connect MailBluster with Postmark, Mailgun &#038; SMTP2GO&#8221;<\/span><\/a><\/p>\n","protected":false},"author":15,"featured_media":10842,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[1151,1137,1120,1188,1187,1189],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Connect SMTP Providers with MailBluster: Step-by-Step Guide<\/title>\n<meta name=\"description\" content=\"If you are looking to connect MailBluster with SMTP providers, here&#039;s the step-by-step process for you. Follow the tutorial to connect!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mailbluster.com\/blog\/connect-smtp-providers-with-mailbluster\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Connect SMTP Providers with MailBluster: Step-by-Step Guide\" \/>\n<meta property=\"og:description\" content=\"If you are looking to connect MailBluster with SMTP providers, here&#039;s the step-by-step process for you. 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