Overview
Mailgun is a cloud-based email delivery platform designed primarily for developers. Founded in 2010 by Taylor Baldwin and William Hay, the service allows businesses to send, receive, and track transactional emails through a simple RESTful API. Mailgun is widely used for sending e-commerce confirmations, password resets, user onboarding emails, and other application-generated messages that require reliable delivery. Over the years, Mailgun has grown to become one of the leading email API providers, competing with services like SendGrid, Amazon Simple Email Service (SES), and Postmark. In 2017, Mailgun was acquired by Rackspace, but later in 2019 it was acquired by Sinch AB, a global communications platform as a service (CPaaS) provider. This acquisition integrated Mailgun into a larger suite of communication APIs, enhancing its capabilities with SMS and other channels. Mailgun's infrastructure is built on Amazon Web Services and Google Cloud, ensuring scalability and low latency. The platform offers multiple features including email validation, webhooks for event tracking, suppression management for handling bounces and complaints, and detailed analytics to monitor deliverability. Developers can integrate Mailgun via SMTP or the API, and it supports major programming languages with official client libraries. The service is trusted by over 80,000 businesses and handles billions of emails per month. Mailgun provides a free tier for small-scale use and pricing based on volume for larger needs. The company's focus on deliverability, along with tools like dedicated IPs and custom tracking domains, helps maintain high inbox placement rates. Mailgun's web presence includes the main site mailgun.org, which serves as a resource for documentation, blog posts, and support. Despite being a technical service, its ease of use and comprehensive logging make it popular among developers and enterprises alike. The domain's global rank of #11,043 reflects a notable online footprint, driven by its extensive documentation and user community.
Company Profile
Mailgun is a subsidiary of Sinch AB, providing a transactional email API service that enables developers to programmatically send, receive, and track emails. It offers robust deliverability features, analytics, and email validation.
Email APIEmail ValidationWebhooksAnalyticsSuppression ManagementDedicated IPs
Market PositionLeading transactional email service, competing with SendGrid, Amazon SES, and Postmark; widely adopted by developers and enterprises.
RevenuePart of Sinch AB, estimated annual revenue over $50 million (pre-acquisition estimates)
EmployeesApproximately 200-500 as part of Sinch
Infrastructure
RoleEmail delivery platform
IP OwnerGoogle Cloud (Google LLC)
Global ScaleGlobal infrastructure via multiple cloud providers (AWS, GCP) with data centers in North America, Europe, and Asia-Pacific
Subdomain examples
api.mailgun.org
app.mailgun.org
mailgun.org
DNS Records
NS Records
ns-133.awsdns-16.com
ns-586.awsdns-09.net
ns-1482.awsdns-57.org
MX Records
10 mxa.mailgun.org
10 mxb.mailgun.org
Related Domains
Official Website
mailgun.comSame Owner
sinch.commessagebird.com
Similar Services
sendgrid.comaws.amazon.compostmarkapp.comsparkpost.com
Mailgun is a wholly owned subsidiary of Sinch AB, a global CPaaS provider.