--- title: Mailgun - SPF & DKIM Configuration description: Configure SPF and DKIM with Mailgun effortlessly. Follow our step-by-step guide to ensure reliable email delivery and enhance your domain's security. --- [Skip to content](https://support.warmy.io/knowledge/mailgun-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) # Mailgun - SPF & DKIM Configuration ## Learn how to configure SPF and DKIM records for Mailgun to authenticate your sending domain, improve deliverability, and prevent spoofing. ![](https://support.warmy.io/hs-fs/hubfs/1-png.png?width=670&height=335&name=1-png.png)  ![](https://a.slack-edge.com/production-standard-emoji-assets/16.0/google-medium/1f3a7.png) Prefer to listen? Hit play to hear this article read aloud.    ### **How to configure SPF and DKIM records in Mailgun?** **Supported Authentication Methods ✅ SPF:** Supported ✅ **DKIM:** Supported **First**, Log in to your Mailgun account. ![](https://support.warmy.io/hs-fs/hubfs/1-png-3.png?width=670&height=447&name=1-png-3.png) From the left navigation menu, click in **Sending** → **Domains**. This is where you'll manage the domain used for sending emails. ![](https://support.warmy.io/hs-fs/hubfs/2-png.png?width=670&height=431&name=2-png.png) Add a subdomain to your account. When adding the domain, select a **2048-bit DKIM key length**, as this is the recommended and most secure option. **Important:** Always use a subdomain, not your root domain. Using a subdomain prevents **Mailgun's MX records** from conflicting with the **MX records** already configured on your primary domain. ![](https://support.warmy.io/hs-fs/hubfs/3-png.png?width=670&height=412&name=3-png.png) --- ### **Mailgun – SPF Record Configuration** After adding your subdomain, **Mailgun** will generate an **SPF** record. 1\. Copy the **SPF** record provided by Mailgun. 2\. Open your **DNS** provider. 3\. Add the **SPF** record to the subdomain you created. **![](https://support.warmy.io/hs-fs/hubfs/4-png-2.png?width=670&height=377&name=4-png-2.png)** The example below shows how the record appears in **Cloudflare**. **![](https://support.warmy.io/hs-fs/hubfs/5-png-3.png?width=670&height=377&name=5-png-3.png)** --- ### **Mailgun – DKIM Record Configuration** **Next**, configure your **DKIM** record. 1\. Copy the **DKIM** record generated by **Mailgun**. 2\. Publish it in your **DNS** zone using your **DNS** provider. The example below shows how the record appears in **Cloudflare**.  **![](https://support.warmy.io/hs-fs/hubfs/6-png.png?width=670&height=365&name=6-png.png)** --- ### **Configure the Additional DNS Records** In addition to **SPF** and **DKIM**, Mailgun requires a few extra **DNS** records to function correctly. These include: **a) MX records:**  Required for email routing. **b) Tracking CNAME record:** Enables email open and click tracking. ![](https://support.warmy.io/hs-fs/hubfs/7-png.png?width=670&height=284&name=7-png.png) Tracking record: **![](https://support.warmy.io/hs-fs/hubfs/8-png.png?width=670&height=234&name=8-png.png)** Add the Tracking **CNAME** record to your **DNS** configuration. The example below shows how it should look in **Cloudflare**. **![](https://support.warmy.io/hs-fs/hubfs/9-png.png?width=670&height=312&name=9-png.png)** --- ### **Enable DMARC Reporting** Mailgun now supports **DMARC** reporting. To enable it, add **Mailgun's RUA** and **RUF** email addresses to your existing **DMARC** record, if you already have one for that subdomain. Do not create a second **DMARC** record; each domain should have only one. Simply update the existing record with **Mailgun's addresses**. **![](https://support.warmy.io/hs-fs/hubfs/10-png.png?width=670&height=271&name=10-png.png)** --- ### **Verify Your DNS Records** Once all **DNS** records have been added, wait for **DNS** propagation. When **Mailgun** detects the records successfully, each one will display a Verified status next to each record, confirming everything is active. You can also click **Check Status** button at any time to verify whether your **DNS** records have been detected. ![](https://support.warmy.io/hs-fs/hubfs/11-png.png?width=670&height=339&name=11-png.png) --- ### **Configuration Complete** Your **Mailgun SPF** and **DKIM** setup is now complete, and you're ready to send **DMARC**-compliant emails. Make sure your **DMARC** record has both **aspf** and **adkim** set to relaxed (rather than strict) for best compatibility. #### [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