Mailgun
D · Extended EcosystemSubsidiaryProvides reliable, scalable email infrastructure with powerful APIs that enable developers to send, receive, and track emails programmatically with high deliverability rates and comprehensive analytics.
Last updated Feb 18, 2026
- Industry
- Email Service Provider / Marketing Technology Infrastructure
- Business Model
- SaaS
- Target Market
- SMB, Mid-Market, Enterprise
- Employee Count
- 51-200
- Funding
- $50M
- Revenue Range
- $100M-$500M
- Stock Symbol
- NASDAQ:SYMBOL
- Parent Company
- Sinch
- API Available
- Yes
Market Position
Leading developer-focused transactional email API provider
Overview
Mailgun is a transactional email API service and email infrastructure platform designed for developers and businesses to send, receive, and track emails programmatically. Founded in 2010 and acquired by Sinch in 2021, Mailgun provides robust email delivery services with advanced features like email validation, inbox placement optimization, and detailed analytics. While not strictly an AdTech platform, Mailgun plays a supporting role in the marketing technology ecosystem by enabling businesses to deliver transactional and marketing emails reliably at scale. Mailgun serves thousands of companies ranging from startups to large enterprises, processing billions of emails monthly. The platform is known for its developer-friendly APIs, high deliverability rates, and comprehensive email infrastructure tools. It competes in the email service provider (ESP) and transactional email space, positioning itself as a technical solution for companies that need programmatic email capabilities rather than traditional marketing automation platforms.
Products & Features
Email API
RESTful API for sending transactional and marketing emails programmatically
Email Validation
Real-time and bulk email verification to improve deliverability and reduce bounces
Inbound Routing
Receive and parse incoming emails with customizable routing rules
Email Analytics
Detailed tracking and reporting on email delivery, opens, clicks, and engagement
Inbox Placement
Tools and insights to optimize email deliverability and inbox placement rates
SMTP Relay
SMTP service for applications that cannot use REST APIs
Key Features
RESTful and SMTP APIsEmail validation and verificationAdvanced analytics and trackingWebhook support for real-time eventsTemplate managementA/B testing capabilitiesDedicated IP addressesDetailed logs and event trackingEmail parsing for inbound messagesSuppression list management
Use Cases
Transactional email delivery (receipts, confirmations, notifications)Password resets and account verification emailsMarketing campaign distributionEmail list validation and hygieneAutomated email workflowsCustomer communication and notificationsSaaS application email infrastructureE-commerce order confirmations and shipping updates
Customer Segments
SaaS companiesE-commerce businessesSoftware developersDigital agenciesEnterprise applicationsStartups and scale-upsMarketing teams requiring programmatic email