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Mailgun

Transactional email API service for developers, part of Sinch Email, enabling sending, receiving, and tracking emails.

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About Mailgun

Transactional email API service for developers, part of Sinch Email, enabling sending, receiving, and tracking emails.

Products

  • Mailgun Send

    Email & CommunicationsFree plan

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    Email API and SMTP relay services to send, receive, and track emails at scale.

  • Mailgun Optimize

    Email & CommunicationsFrom $49/month

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    Email deliverability suite for testing inbox placement, monitoring sender reputation, validating email addresses, and expert deliverability guidance.

  • Mailgun Validate

    Email & CommunicationsFree plan

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    Email validation service offering real-time API verification and bulk list upload to remove invalid and high-risk email addresses.

  • Mailgun Inspect

    Software TestingFrom $99/month

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    Email quality assurance platform for previewing emails across 100+ devices and clients, code analysis, and accessibility compliance checks.

What customers say

“For us, at the volume we’re sending – every fraction of a percentage means a potential customer, and as a community of designers, it’s our job to create meaningful touchpoints. High deliverability ensures that our messages and our reach are seen; any improvement in our email program has a huge effect on our business.”
CustomerMailgun customer
  • Mailgun Send

    AirGuru runs its email program through Omnisend, which uses Mailgun Send and Optimize APIs for delivery and deliverability. The vendor-published story reports $247 returned per dollar spent and 33% year-over-year email…

    Case study
  • Case study

    Avada Commerce uses Mailgun for merchant email campaigns, abandoned-cart sequences and triggered notifications. The vendor-published case reports average open rates rising from 10% to 45%, deliverability up to 90% and…

    Case study
  • Case study

    Omnisend moved from Amazon SES to Mailgun to simplify customer onboarding and used Deliverability Services to plan dedicated IP capacity. The vendor-published story reports a 99% delivery rate and support for 2.4X growth…

    Case study

Security and compliance

As reported by Mailgun. Ask for audit reports before you buy.

  • SOC 1 Type ICertified
  • SOC 1 Type IICertified
  • HIPAACertified
  • ISO/IEC 27001Certified
  • PCI DSSCertified
  • 2-Factor Authentication

SubprocessorsBotSailor, Crusoe, Deepnote, MailBluster, Plivo, Raisely, Graphistry

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Latest updates from Mailgun

New feature

Mailgun Launches Redesigned Dedicated IP Management Page

Mailgun has redesigned its dedicated IP management page to provide a centralized view of IP configurations. The update allows users to monitor warmup status, linked domains, sub-accounts, and IP pool assignments from a single dashboard. New filtering capabilities enable users to quickly identify unassigned IPs and access deliverability metrics directly. Additionally, the update includes link history auditing for activity occurring on or after April 23, 2026. This release represents the first phase of a broader effort to improve IP management infrastructure.