Over 150,000 companies are building great apps and email programs with Mailgun

Enterprise email: power at scale
For enterprise senders, Mailgun’s Throughput and Rapid Fire Delivery SLAs guarantee optimal delivery speeds to inbox service email servers. Whether you need to burst send millions of emails within minutes or are sending high-volume messages out to your recipients around the clock. No matter how you send email, our SLAs got you covered:
Throughput SLA for millions of API requests per minute.
Rapid Fire Delivery for guaranteed delivery attempts for tens of millions of messages in minutes.
Additional SLAs for support response times and single email verifications are available.
Mailgun for Enterprises
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Email APIs built for reliability
With Mailgun, your business emails are supported by a robust cloud architecture maintained around the clock by our engineering team to ensure swift and secure delivery to mailboxes. Our infrastructure is built for scale, sending over 300 billion emails every year with 99.99% server uptime.

97.4% Average Delivery Rate
from deliverability services customers, beating the industry average of 85%
24.6m Average Monthly Volume
from our deliverability services customers alone
0.42% Average Bounce Rate
for deliverability services customers, well under the industry average bounce rate of 2%
Security that protects everyone
Great email sending starts with top-notch security, and our commitment to your data privacy goes beyond simple encryption. At Mailgun, we believe data privacy and security protect not only your recipients but your business as well. We've enabled our systems to allow you to require 2FA authentication or SAML authentication to your Mailgun account for everyone who has access.
With your security in mind, we’ve partnered with an industry-leading cloud server provider and maintain full SOC I & II, GDPR, and HIPAA compliances to protect our customers and recipients from bad actors.


Elegant features for effortless integration
Mailgun API makes integrating email into your existing applications effortless for your development teams with our RESTFUL API, SMTP relays, up-to-date SDKs, and comprehensive docs. No matter your use case, your team is empowered to get your email program up and running.
Unmatched expertise
Finding a trusted partner and an infrastructure that scales, meets industry best practices, and never goes down is a monumental task. With InboxReady, you get a tailored solution and a deliverability strategy suited for your business and your goals.
Our Enterprise Deliverability Service includes:
A Senior Technical Account Manager (TAM) and named Backup TAM who proactively monitor your account.
A deliverability strategy custom to your business needs, industry, and unique use case.
Industry-leading Throughput, Delivery, and Support Performance SLAs.
Weekly Check-Ins and Reporting on your email program.


"Mailgun makes it easy to build and manage a large-scale email marketing application with thousands of customers sending millions of emails."
Chris Hexton
CEO & Co-Founder, Vero