--- title: Mailjet - SPF & DKIM Configuration description: Enhance your email deliverability with Mailjet's SPF and DKIM configuration guide. Follow our step-by-step instructions for seamless setup and support. --- [Skip to content](https://support.warmy.io/knowledge/mailjet-spf-dkim-configuration#main-content) English Show submenu for translations ![Group 1261151152.png\]](https://support.warmy.io/hs-fs/hubfs/Group%201261151152.png?width=50&height=50&name=Group%201261151152.png) Open main navigation Close main navigation - English Show submenu for translations - [Go to warmy.io](https://www.warmy.io/) [Go to warmy.io](https://www.warmy.io/) Hey there Warmer! How can we help? 🙏 - There are no suggestions because the search field is empty. 1. [Help Center](https://support.warmy.io/knowledge?hsLang=en) 2. [Technical questions](https://support.warmy.io/knowledge/technical-questions?hsLang=en) 3. [SPF and DKIM Configuration](https://support.warmy.io/knowledge/technical-questions?hsLang=en#spf-and-dkim-configuration) # Mailjet - SPF & DKIM Configuration ## Mailjet is an email delivery platform by Sinch for sending transactional and marketing emails via SMTP or API. To improve deliverability, please follow the instructions below to set up SPF and DKIM for your domain.   ✅ SPF: Supported ✅ DKIM: Supported ****       🎧 Prefer to listen? Hit play to hear this article read aloud.**** 1. Log in to your Mailjet account and navigate to **Account Settings.** 2. Go to the "**Sender domains & addresses**" section. ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-06-1351-AM.png?width=670&height=278&name=undefined-May-27-2026-09-32-06-1351-AM.png) 3\. Click the **gear** icon next to the domain you want to authenticate and select "**Setup SPF/DKIM Authentication**." ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-03-9773-AM.png?width=670&height=304&name=undefined-May-27-2026-09-32-03-9773-AM.png) Once clicked, you'll be provided with your SPF and DKIM records. ### ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-05-2075-AM.png?width=670&height=326&name=undefined-May-27-2026-09-32-05-2075-AM.png) **Mailjet – SPF Record Configuration** **Important Note:** Mailjet provides the SPF record **v=spf1 include:spf.mailjet.com ?all**, however you should not publish this in your DNS or add **include:spf.mailjet.com** to your existing SPF record. Mailjet emails will still fail SPF checks even if you do. The correct setup requires a CNAME record instead. To pass the SPF check: - **Step 1:** Go to your domain's DNS zone. - **Step 2:** Create a subdomain using the prefix "**bnc3**" - e.g., **bnc3.yourdomain.com**. - **Step 3:** Add a CNAME record with **bnc3.yourdomain.com** as the Name/Host and **bnc3.mailjet.com** as the Target/Value. ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-03-6425-AM.png?width=670&height=133&name=undefined-May-27-2026-09-32-03-6425-AM.png) - **Step 4:** Once the record is published, contact Mailjet's [support team](https://documentation.mailjet.com/hc/en-us/categories/360003942954-Mailjet-FAQ-Center-)and ask them to activate your personalized return path. After activation, SPF alignment will pass correctly using the **bnc3.yourdomain.com** subdomain. ### **Mailjet – DKIM Record Configuration** To set up DKIM, copy the provided DKIM record and publish it as a TXT record in your domain's DNS zone. ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-04-4468-AM.png?width=670&height=518&name=undefined-May-27-2026-09-32-04-4468-AM.png) After saving, return to Mailjet and click **Refresh**. ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-04-7935-AM.png?width=670&height=553&name=undefined-May-27-2026-09-32-04-7935-AM.png) If everything is configured correctly, a green checkmark will confirm that your DKIM record has been successfully verified. As for SPF, do not worry about it showing a warning - you only need to publish the CNAME record mentioned above and ask Mailjet's support team to activate it, and that's it. ![](https://support.warmy.io/hs-fs/hubfs/undefined-May-27-2026-09-32-05-7765-AM.png?width=670&height=560&name=undefined-May-27-2026-09-32-05-7765-AM.png) #### [Need help? **Schedule a call with us 👨🏻‍💻**](https://www.warmy.io/book-a-support-call)   - [Connection Guide](https://support.warmy.io/knowledge/connection-guide?hsLang=en) - [General questions](https://support.warmy.io/knowledge/general-questions?hsLang=en) - [Technical questions](https://support.warmy.io/knowledge/technical-questions?hsLang=en#main-content) - [SPF and DKIM Configuration](https://support.warmy.io/knowledge/technical-questions?hsLang=en#spf-and-dkim-configuration) - [Subscription](https://support.warmy.io/knowledge/subscription?hsLang=en) - [Collaborate](https://support.warmy.io/knowledge/collaborate?hsLang=en) - [Features](https://support.warmy.io/knowledge/features?hsLang=en) - [Troubleshooting](https://support.warmy.io/knowledge/troubleshooting?hsLang=en#main-content) - [SMTP Errors](https://support.warmy.io/knowledge/troubleshooting?hsLang=en#smtp-errors) - [Service-related issues](https://support.warmy.io/knowledge/troubleshooting?hsLang=en#service-related-issues) - [Integrations](https://support.warmy.io/knowledge/integrations?hsLang=en#main-content) - [Seed List Automations](https://support.warmy.io/knowledge/integrations?hsLang=en#seed-list-automations) [![Chill listening crop-3](https://support.warmy.io/hs-fs/hubfs/Group%201261151152.png?width=24&height=24&name=Group%201261151152.png "Chill listening crop-3")](https://www.warmy.io/) warmy.io Help Center Copyright © 2026, AnyBiz LTD