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Burst sending for rapid email delivery

Get your time-sensitive, high-volume emails on their way to inboxes without delay.

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

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Never suffer a slowdown

For high-volume senders, our Rapid Fire and Delivery SLAs guarantee space within the message queue for optimal delivery speeds to all inbox service providers. It's more than a promise. It's a financial commitment to deliver the desired level of performance without fail:

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Rapid Fire Throughput SLA

Up to 72 million message requests an hour (1.2 million requests a minute).

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Contract level coverage

From the moment your message enters our queue up to attempted delivery.

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Rapid Fire Delivery SLA

Guaranteed 99% attempted delivery of up to 15 million messages within the first five minutes of sending.

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Fast delivery when you need it, 24/7

When your business operates around the clock, you can't afford a processing slowdown. Rapid Fire ensures that your messages are sent in record time whenever you need it. Send in bursts at specific times or get high volume messages out to your list around the clock. With Rapid Fire Delivery SLA, your emails can reach inbox at the precise time you want for maximum impact.

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Security that protects everyone

As an enterprise business, data protection and privacy are paramount to keeping your customers' trust and adhering to international standards for data privacy. Sinch Email offers everything you need for your email program, including:

  • SSAE-16 SOC I & II certified

  • HIPAA and GDPR compliant

  • 2FA and SAML SSO available

  • Additional compliance standards are available on our security portal

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"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

Built for dependability

With Mailgun, your emails are supported by a robust cloud architecture maintained around the clock by our engineering team to ensure swift and secure delivery to mailboxes:

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Server Uptime for dependable reliability

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340 billion plus emails

sent yearly at scale

Everything you need to create a thoughtful communications experience

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Integrate in minutes

Mailgun’s RESTful APIs make adding emails to your business a breeze. Let your development team pick their languages of choice and start sending.

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Empower effortless template creation

Users can create responsive, beautiful templates all from your application with Mailjet’s Email Editor through Mailjet Embedded.

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Test your customers’ email templates

With previews on over 100+ clients and devices, Email on Acid helps you make certain your message displays as intended—in every inbox.

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Expand your communications offerings

Send personal, secure messages directly to your customers on their favorite channels, with cloud-based messaging services from Sinch.

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Utilize actionable insights

Spend less time monitoring your reputation and email performance by having an Mailgun Optimize expert proactively track your email program.

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Add a personal touch

Create a customizable video or voice chat experience in mobile, web, or desktop applications to build deeper connections with your customer base.

No more bottlenecks

With intelligent queue management, you never have to worry about bottlenecks. Mailgun's cloud-based architecture provides the flexibility to manage our infrastructure dynamically. As soon as Mailgun accepts your email, we'll initiate the first delivery attempt, sending 99% of messages in less than five minutes of receipt to your intended recipients' email accounts.

If anything ever happens, we update our status page regularly to keep our senders informed in real-time.

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Microsoft, Wikipedia, and American Express trust Mailgun Enterprise with their email programs.

Are you ready to transform your email strategy?
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