Mailgun Validation API
Data Validation · Email
Mailgun Email Validation is an email verification service built into the Mailgun email platform, powered by real-world delivery data from billions of emails sent through Mailgun's infrastructure. Because Mailgun operates one of the largest email sending platforms globally, its validation engine uses actual send history and recipient engagement data not just DNS checks to make more accurate predictions about whether a given email address is deliverable.
Mailgun Validation API Highlights
Mailgun Validation API is verified for developer integrations in Nigeria and across African markets, providing documented endpoints, sandbox testing, and developer support.
HTTP Basic Auth username: "api", password: YOUR_API_KEY
Depends on plan. Optimize: 2,500 validations/month base.
Nigeria
Ghana
Kenya
AWSMailgun Validation API is best for:
Nigerian developers and businesses already using Mailgun for transactional email who want to add email validation to the same platform reducing email bounces with inline real-time validation and bulk list hygiene.
- Optimize plan:$49/month (2,500 validations + 25 inbox tests + 500 email previews)
- Foundation+:$1.20 per 100 validations overage
- Free:100 emails/day (send only, not validation)
Mailgun Validation API Core Features & Capabilities
Features Included
Not Supported
Mailgun Validation API Supported Webhook Events
HTTP POST requests containing timestamp, token, and signature fields signed via HMAC-SHA256 with your Webhook signing key.
| Event Name | Trigger & Description |
|---|---|
delivered | Email was accepted by the recipient mail server. |
opened | Recipient opened the email message. |
clicked | Recipient clicked a link inside the message. |
permanent_fail | Message permanently failed delivery. |
temporary_fail | Temporary delivery delay; delivery will be retried. |
unsubscribed | Recipient unsubscribed from email list. |
complained | Recipient filed a spam complaint. |
Required Access Documents for Mailgun Validation API
- Mailgun Account RegistrationRequiredSign up at mailgun.com. Free tier provides 100 emails/day for sending. Validation requires Optimize or higher plan.
- Domain VerificationOptionalTo send email through Mailgun and validate via the send pipeline, your domain must be verified with Mailgun DNS records.
Different Mailgun Validation API use cases
- Nigerian App Real-Time Email Validation:Integrate Mailgun's real-time validation API into your Nigerian app's signup form to validate email addresses the moment they are entered, blocking fake, disposable, and invalid addresses before registration.
- Email Campaign Pre-Send Hygiene:Upload your Nigerian customer email list to Mailgun Optimize's bulk validator to remove invalid and high-risk addresses before a transactional or marketing campaign, reducing hard bounce rates.
- Transactional Email + Validation in One Platform:Nigerian developers using Mailgun for transactional email (receipts, OTPs, notifications) can add email validation to the same account, avoiding the need for a separate email validation vendor.
- Inbox Placement Testing for Nigerian Campaigns:Use Mailgun Optimize's inbox testing feature to verify that Nigerian customer emails reach the inbox rather than spam folders across major email providers before large-scale sends.
- E-commerce Checkout Email Verification:Validate Nigerian shopper email addresses at checkout using Mailgun's real-time API, ensuring order confirmation emails are deliverable and reducing customer service issues from non-delivery.