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Mailgun Review

Mailgun is an email delivery service for sending, receiving, and tracking emails, providing APIs for developers to integrate email functionalities into their systems.

shipped Apr 2, 2026updated May 27, 2026aifreemium
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Mailgun - AI tool for mailgun. Professional illustration showing core functionality and features.

Why it matters

1Mailgun holds a 4.3/5 star rating on Trustpilot, indicating strong user satisfaction.
2Dedicated IPs are available at an additional cost of $59/month per IP.
3Email validation services are priced at $1.20 per 100 validations on the Foundation plan.
4Mailgun's deliverability rates stabilize to 94-97% by month six with adherence to proper warm-up protocols.

Stork’s verdict on Mailgun

Mailgun provides robust email delivery APIs for scale, but its developer-centric design requires integration effort.

Specs

API Available

Yes, public API

overview

What is Mailgun?

Mailgun is an email delivery service tool developed by Mailgun that enables developers and businesses to send, receive, and track emails programmatically. It provides APIs and SMTP relays for integrating email functionalities into various systems, abstracting away the complexities of email server management and deliverability.

features

Key Features of Mailgun

Mailgun offers a comprehensive suite of features designed to facilitate robust email communication for applications and services. These capabilities ensure reliable email delivery, efficient management, and detailed performance tracking.

  • Email sending via RESTful API or SMTP relay.
  • Email receiving and parsing for inbound mail processing.
  • Detailed email tracking, including opens, clicks, and bounces.
  • API for seamless integration of email functionalities into applications.
  • Management of transactional emails such as password resets and order confirmations.
  • Execution and optimization of marketing email campaigns.
  • Email address validation to improve list hygiene and deliverability.
  • Email list validation to reduce bounce rates.
  • Monitoring of email deliverability metrics.
  • Monitoring of email engagement metrics through analytics.

use cases

Who Should Use Mailgun?

Mailgun is primarily designed for developers and businesses that require a scalable and reliable email infrastructure. Its API-first approach makes it suitable for integrating email capabilities directly into software applications and services.

  • Developers: For integrating email sending and receiving into applications via API or SMTP, managing transactional emails, and handling application notifications.
  • Startups and Small Teams: Seeking a cost-effective solution for sending triggered emails without the overhead of managing their own email servers.
  • Large Companies: Requiring high-volume email sending, dedicated IP addresses, and advanced deliverability controls.
  • Online Stores: For sending order confirmations, shipping updates, and promotional emails at scale.
  • SaaS Teams: Needing an API-first design for easy setup, granular control over email processes, and robust analytics.

pricing

Mailgun Pricing & Plans

Mailgun operates on a freemium model, offering a free tier for initial usage and transitioning to usage-based pricing for higher volumes. The platform's pricing structure includes costs for email sending, with additional charges for specific features and add-ons. For instance, dedicated IP addresses are available at an additional $59 per month per IP. Email validation services are priced separately, costing $1.20 per 100 validations on the Foundation plan. While specific tier names and their exact monthly prices are not uniformly published, the model scales with email volume and feature requirements.

  • Freemium model: Includes a free tier for initial usage.
  • Usage-based pricing: Costs scale with email volume.
  • Dedicated IPs: $59/month per IP.
  • Email Validations: $1.20 per 100 validations (Foundation plan).

Policies

Free Tier

Vendor website advertises a free tier.

Pricing Page

View Pricing

Similar Tools

Mailgun vs Competitors

Mailgun operates within a highly competitive email delivery market, contending with several established platforms that offer similar core functionalities but often differentiate through specific features, integrations, or target audiences. The competitive landscape includes services that emphasize AI-driven marketing, broader marketing platforms, or deep integration within cloud ecosystems.

1

SendGrid facilitates interaction with AI agents to automate email marketing, contact management, and dynamic template creation through its API.

Similar to Mailgun in offering a robust email API for developers, SendGrid distinguishes itself by explicitly supporting AI agent integration for advanced automation and personalization, whereas Mailgun offers an AI assistant primarily for onboarding and troubleshooting. Both offer freemium models and cater to developers and businesses.

2

Brevo's Aura AI assistant provides comprehensive marketing assistance, including content generation, audience segmentation, and subject line optimization.

While Mailgun focuses on email delivery infrastructure with AI support, Brevo offers a broader marketing platform with significant AI capabilities for content creation and campaign optimization, appealing to a wider range of marketing and sales teams in addition to developers. Both have freemium plans.

3
SparkPost

SparkPost utilizes predictive intelligence technology and AI-powered tools for optimizing email performance, deliverability, and content creation.

SparkPost directly competes with Mailgun as an email API provider, with a strong emphasis on AI-driven insights and optimization for deliverability and engagement, offering similar core sending and tracking features but with advanced predictive analytics. Both provide freemium options and target developers and enterprises.

4
Amazon SES (Simple Email Service)

Amazon SES offers scalable email sending with AI-powered Virtual Deliverability Manager (VDM) for automated deliverability improvements and integration with AI tools via MCP.

Amazon SES provides a highly scalable and cost-effective email service, similar to Mailgun's core API, but its AI features are deeply integrated within the AWS ecosystem for automated deliverability management and broader AI agent interactions. It operates on a pay-as-you-go model, which is effectively freemium for low usage, catering to a wide range of AWS users.

AI Reputation Report

Is Mailgun yours?

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