Tools · Mailgun
Mailgun
Reliable transactional email infrastructure built for developers.

Overview
What is Mailgun?
Mailgun provides an email delivery API focused on transactional and programmatic messages. It handles sending, validation, and tracking at scale. Teams rely on it to maintain high inbox placement rates.
Mailgun is a cloud-based email delivery service built for developers who need to send transactional messages with precision. It offers APIs and SMTP relay options to integrate email sending directly into applications and systems. The platform includes tools for address validation, email preview, and deliverability optimization to reduce bounce rates and avoid spam folders. Users can track engagement metrics and manage inbound routing through a single interface. It scales to handle billions of emails per month while maintaining compliance standards. The service is not designed for bulk marketing newsletters but excels at programmatic sending where reliability is critical.
Fit
Ideal customer profile.
Developers and businesses that need reliable, programmatic email delivery integrated directly into their applications or platforms.
- Seed
- SMB
- Mid-market
Capabilities
Key features.
01
Send transactional emails with high reliability
02
Validate email addresses for accuracy
03
Preview emails before sending
04
Track delivery and engagement metrics
05
Dedicated IP pools for sender reputation
06
Inbound email routing and parsing
07
SMTP relay and HTTP API integration
08
Deliverability optimization tools
09
Scalable sending up to billions monthly
10
Compliance and bounce management
Usage
How to use Mailgun.
Teams connect Mailgun to their application using the HTTP API or SMTP relay to trigger automated emails from their product. Developers configure sending domains, set up inbound routes, and monitor delivery analytics through the dashboard. Email lists can be validated before campaigns to reduce hard bounces and protect sender reputation.
Cost
Pricing.
$15/ Hybrid
A free plan covers 100 emails per day. Paid tiers start at $15 per month for 10,000 emails and go up to $90 per month for 100,000 emails. A 30-day trial is available.
Free
$0.00
Basic
$15.00
Foundation
$35.00
Scale
$90.00
At a glance
Quick facts.
- Stack position
- Deliverability
- Category
- E-commerce Tools, Sales Tools
- Best for
- Seed, SMB, Mid-market
- Pricing
- From $15/Hybrid
Subcategories
- Deliverability Infrastructure
- Email Sender
- Email Spam Tester
- Email Verification
- Transactional Email Services
Follow Mailgun
Questions
Frequently asked.
How do you send emails with Mailgun?
You can send emails through the HTTP API or SMTP relay integrated into your application. Both methods support reliable transactional delivery at scale.
What does Mailgun cost?
A free plan allows 100 emails per day with basic features. Paid plans range from $15 to $90 per month, covering 10,000 to 100,000 emails.
Why should teams choose Mailgun?
It combines reliable scaling with advanced analytics and deliverability tools. These capabilities help businesses maintain strong sender reputations and engagement rates.
How does Mailgun handle email delivery?
The platform operates a cloud-based infrastructure with APIs to send, receive, and track emails. It processes billions of messages monthly with built-in deliverability optimization.
Is there a free Mailgun plan?
Yes, the free tier includes 100 emails per day along with basic sending and tracking features. It works well for testing and low-volume transactional needs.
Does Mailgun offer partnership or enterprise options?
Mailgun works with businesses to build scalable, enterprise-grade email delivery solutions. Custom configurations and dedicated support are available for larger sending requirements.
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Pick the tool. We run the system around it.
Mailgun is one part of a stack. Phi builds and operates the revenue system the whole stack plugs into.

