Mailgun is a transactional email API service that enables developers to send, receive, and track emails through their applications using RESTful APIs. The service provides powerful email validation, tracking, and analytics features, along with SMTP integration and detailed logs for debugging. Mailgun specializes in handling large volumes of automated emails including notifications, confirmations, and marketing communications.
Founded
2010
Company Size
201-500 employees
Headquarters
San Francisco, USA
Funding
Acquired
Full REST API for programmatic sending, management, and tracking of emails.
Automatically excludes unsubscribed, bounced, or spam-marked addresses for compliance and deliverability.
Reliable SMTP relay for high-volume email delivery.
Real-time and bulk email validation to verify addresses, check MX records, detect disposables, and reduce bounces.
WYSIWYG builder and API for creating, versioning, and personalizing HTML email templates.
Comprehensive tracking of opens, clicks, bounces, and delivery stats with webhooks.
Receive and parse incoming emails with configurable routes.
High-speed delivery for high-volume emails with intelligent queue management.
Predicts deliverability issues and provides insights per email provider to optimize campaigns.
Segment email lists by demographics, company size, or engagement for targeted campaigns.
Optimizes email delivery timing for better engagement.
Classifies bounces to identify and resolve delivery issues.
Dedicated IP addresses for improved deliverability and IP reputation management.
Support for multiple custom sending domains.
Automatically parse incoming messages for data extraction without manual work.
Supports SPF, DKIM, DMARC, and BIMI for email authentication and security.
Common questions about Mailgun features, pricing, and capabilities
The Email Validation API performs real-time checks on email addresses to identify typos, verify MX records, and detect disposable or high-risk addresses. By cleaning your list before sending, you significantly reduce bounce rates and protect your sender reputation with major ISPs.
Absolutely. Mailgun's Inbound Routing feature allows you to receive emails, parse the content into structured JSON data, and post it to your application via webhooks. This is ideal for building features like help desks, message boards, or automated data processing tools.
Rapid Fire is a high-speed delivery service available on higher-tier plans designed for time-sensitive, high-volume bursts. It utilizes intelligent queue management to ensure that millions of emails, such as breaking news alerts or flash sale notifications, are delivered as quickly as possible.
To get started, you need to sign up for an account and verify your sending domain by adding specific DNS records (SPF and DKIM) provided by Mailgun. Once your domain is verified, you can choose between using the API or SMTP credentials to begin sending your first messages.
Yes, Mailgun is designed to handle both transactional emails, like password resets, and marketing communications, like newsletters. We recommend using separate subdomains for each type of traffic to ensure that your transactional deliverability isn't affected by marketing campaign performance.
Yes, while Mailgun is known for its powerful RESTful API, it also provides a robust SMTP relay. This allows you to easily integrate Mailgun with existing software, CMS platforms like WordPress, or legacy systems that require standard SMTP credentials to send mail.
Mailgun uses webhooks to send real-time notifications to your server whenever an event occurs, such as an email being opened, a link being clicked, or a message bouncing. This allows you to sync engagement data directly with your internal database or CRM without manual exports.
Mailgun plans like Basic and Foundation have a starting volume, but you can send beyond those limits for a small overage fee per thousand emails. This ensures your transactional emails are never blocked due to hitting a hard cap, allowing your service to scale seamlessly as your traffic grows.
Yes, Mailgun offers a 'Free' tier specifically designed for testing and development. This allows you to integrate the RESTful API or SMTP relay into your application and send a limited number of emails to authorized recipients before committing to a paid monthly subscription.
Mailgun provides full support for SPF, DKIM, and DMARC authentication to verify your domain's identity. We also support BIMI, which allows you to display your brand logo in supported email clients, further increasing trust and security for your recipients.
Mailgun maintains automated Suppression Lists that track unsubscribes, hard bounces, and spam complaints. Once an address is added to a suppression list, Mailgun will automatically block future attempts to send to that address, ensuring you remain compliant with anti-spam laws like CAN-SPAM.
Mailgun provides extensive documentation including API references, quick-start guides for various programming languages (Python, Ruby, PHP, Node.js, etc.), and detailed tutorials. This makes it easy for developers to implement complex features like batch sending or template versioning.
Test us out for free
Starting at
$0.00/month
Monthly base subscription
First 100 emails included
For 0-100 emails
100 emails per day included
Starting at $15/mo for 10,000 emails
Starting at
$15.00/month
Monthly base subscription
First 10,000 emails included
For 0-10,000 emails
10,000 emails per month included
Extra emails from $1.80 / 1,000 emails
Everything on Basic plus more domains and retention
Starting at
$35.00/month
Monthly base subscription (Free for 1 month)
First 50,000 emails included
For 0-50,000 emails
50,000 emails per month included
Extra emails from $1.30 / 1,000 emails
Extra validations from $1.20 / 100 validations
Everything on Foundation plus SAML SSO and Dedicated IP pools
Starting at
$90.00/month
Monthly base subscription (Free for 1 month)
First 100,000 emails included
For 0-100,000 emails
100,000 emails per month included
Extra emails from $1.10 / 1,000 emails
First 5,000 validations included
5,000 email validations included; extra from $0.80 / 100 validations
Custom features, Deliverability Services, and Rapid Fire Burst Sending SLA
Contact for pricing
Tailored pricing for high volume senders
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