How to Connect Webflow forms to Mailgun in 3 Simple Steps (2026 Guide)

Why Connect Webflow to Mailgun?

Connecting your Webflow landing page directly to Mailgun streamlines your workflow by eliminating manual data entry and third-party webhook delays.

Send transactional emails via Mailgun on submission.

With WebflowForms, your submissions sync in under 60 milliseconds directly via the official Mailgun API with zero Zapier or Make tasks required.

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Step 1: Set Up Your Mailgun Connection

1. Log into your WebflowForms Dashboard. 2. Go to Connections → Add Connection. 3. Select Mailgun from the provider dropdown. 4. Enter your credentials. Your secrets are immediately encrypted using AES-256 GCM encryption at rest.

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Step 2: Map Form Fields Visually

1. Navigate to Forms → Create Form. 2. Select your Mailgun Connection. 3. Link your Webflow form field names (`email`, `name`, `message`, etc.) to the target Mailgun properties. 4. Add an optional custom thank-you redirect URL.

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Step 3: Connect Your Webflow Native Form

1. Copy your unique Form ID generated by WebflowForms. 2. In your Webflow designer, select your native Form Component. 3. Paste the backend URL:

4. Publish your site — your Webflow forms are now live and connected to Mailgun!

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Security & Zero Data Retention

WebflowForms strictly adheres to privacy-first engineering: - Client-Side Safety: Your Mailgun credentials are never exposed in browser JavaScript. - Zero Data Retention: Form payloads are validated and dispatched immediately without storing customer PII in intermediate databases. - Unlimited Submissions: No monthly submission caps or overage charges.