EMAIL INFRASTRUCTURE FOR AI APPS

Welcome to inbox intelligence

Every complex user workflow needs a definitive starting point. For AI organizations, email is the critical first layer delivering frictionless user verification, instant OTPs, and easy transaction emails on time and at scale. Powered by developer-friendly APIs that send over 800 billion emails annually with 99.99% uptime, Mailgun can have your teams sending in minutes and scaling your operations with total confidence. 

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

Built for deliverability. Engineered for velocity.

Speak with our team of experts to configure a high-volume, high-deliverability program that fits your use cases and meets your needs at every tier.

Lightning-fast OTP delivery makes onboarding frictionless

Exponential growth can inadvertently cause your sign-up flow to be your #1 bottleneck. If a user has to wait even 60 seconds for a verification code or magic link, they’re moving on. Mailgun delivers 99% of messages in 20 seconds or less, so your critical authentication and One-Time Passwords (OTPs) hit inboxes immediately. 

Ensuring impeccable deliverability does more than keep users happy. According to a recent Forrester study, Mailgun’s superior inbox placement yields an average $594,000 revenue increase directly tied to better email performance. 

  • Sub-second delivery latency: Globally optimized routing helps authentication codes arrive instantly.  

  • 65% increase in open rates: Confirm critical onboarding and validation emails are seen and opened.  

  • 21% decrease in bounce rates: Built-in validation catches typos at the sign-up form to protect your database quality and sender reputation. 

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Complex AI ecosystems are no problem

As your organization builds workflows, agentic automations, and campaigns to reach users, scaling infrastructure at the same time can slow you down. Mailgun’s robust APIs and architectural flexibility provide the capability to build and manage large-scale, multi-tenant systems quickly. It’s time to give your engineering team the tools they need to automate complex workflows and maintain granular control at scale. 

  • Subaccount architecture: Easily isolate and manage reputation, API keys, and sending pools for individual clients or models. 

  • Automated inbound parsing: Convert incoming customer replies into clean, structured JSON payloads to feed back into your models. 

  • Enterprise scale: Leverage a platform trusted to deliver billions of emails without breaking a sweat. 

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Drop the “guardrail tax” and cut sending costs in half

Sinch’s AI Production Paradox report reveals a key finding: 84% of AI engineering teams spend over half their time building safety controls, retries, and infrastructure guardrails instead of developing core product features. With Mailgun, enterprise-grade deliverability, automated compliance, and developer-focused infrastructure come standard.

Forrester found this efficiency helps Mailgun customers see a 264% ROI over three years and reduce their average cost to send an email by 50%.

  • Zero “guardrail tax”: Free up your teams to focus on your core AI models, not building email delivery pipelines. 

  • Developer-first SDKs: Native code libraries for Python, Node.js, Go, Ruby, Java, and PHP to get you up and running in just minutes. 

  • Proven ROI: Consolidate testing, analytics, and deliverability to achieve a significant financial return. 

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Strategic partner-level support you can count on

The world of AI moves fast. Really fast. And you don’t have time to get stuck in a basic support queue as you’re optimizing your sending infrastructure. That’s where our Technical Account Manager (TAM) team comes in. This dedicated group of email deliverability specialists (with a combined 320+ years of experience!) offers much more than everyday support — it’s a strategic extension of your engineering team. 

  • Personalized guided migration: Seamlessly transition your sending volume to Mailgun without disrupting your sends or impacting your active sender reputation.

  • Proactive reputation monitoring: Receive personalized strategic guidance, IP warming plans, and ongoing deliverability audits. 

  • Enterprise-grade security: Stay secure with SOC 1 Type II compliance, GDPR alignment, and TLS-encrypted data transit. 

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Industry-leading reliability built to keep up with AI-first organizations

Easier, quicker integration

Mailgun’s RESTful APIs make adding a new email solution to your tech stack possible in just minutes. Let your development team pick their languages of choice and start sending. 

99.99% system uptime

Utilize a highly resilient, enterprise-grade cloud architecture that guarantees near-perfect uptime when you need it most. 

100% increase in click rates

Maximize inbox placement with our in-house email deliverability suite and white-glove TAM services for the expertise you need to double engagement and bring users back to your platform. 

Dedicated IP Management

Isolate all transactional flows (like OTPs) from your bulk marketing sends to secure the fastest possible delivery speeds. 

Instant event webhooks

Easily stream delivery, open, click, and bounce events directly to your app in real time. This allows your models to react instantly to actual user behavior. 

Avoid live rollbacks

74% of enterprises have rolled back live AI agents due to operational failures. Mailgun’s proven reliability and powerful infrastructure ensure deployment success.