Mailgun vs Mailchimp Transactional Email Services

Looking to compare email services between Mailgun vs. Mailchimp Transactional Email? Choose Mailgun if you need an API-first platform with proactive deliverability and EU/US region choice. Choose Mailchimp if you already use its marketing suite and want transactional sending in the same account.

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Why Sinch Mailgun?

Top reasons team choose Mailgun

  • Developer-first approach with robust APIs and webhooks

  • HIPAA-ready, SOC 2, GDPR, CCPA compliance available

  • Advanced analytics & dedicated IPs included on scale and enterprise plans

  • Proactive deliverability toolkit and region flexibility 

  • Transparent, usage-based pricing without marketing plan lock-inProactive deliverability toolkit and region flexibility

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Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

Deliverability

Proactive deliverability—beyond basic delivery

Mailgun offers deliverability tools that go beyond simple transactional email sending. Proactively monitor, test, and optimize your inbox placement to improve engagement and sender reputation. 

  • Inbox Placement seed tests preview where messages land 

  • Spam-trap and blocklist monitoring flag reputation risks 

  • DMARC reporting via Red Sift supports authentication and compliance 

A graphic illustration of an email verification along with the statistics behind it.

Built For Developers

Developer-first API and infrastructure

Mailgun is built for technical teams who need reliable APIs, strong logging, and granular control without a marketing suite requirement. Move fast with robust integrations and infrastructure. 

  • Integrate with an easy REST API and SMTP relay 

  • Access granular logs and event webhooks (accepted, delivered, opened, clicked, failed) 

  • Use inbound routing with spam filtering and JSON parsing 

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Pricing & Flexibility

Flexible, transparent pricing

Mailgun delivers perpetual free sending for testing and fair, usage-based pricing as you grow. You never need a marketing plan and can scale features independently. 

  • Start with a forever free pricing tier (100 emails/day) 

  • Pay only for email volume—no marketing bundle required 

  • Scale with dedicated IPs and advanced deliverability tools as you grow 

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Features

Compare Mailgun vs. Mailchimp Transactional Email

See how Mailgun stacks up against Mailchimp Transactional Email (formerly Mandrill) for critical features. Mailgun stands out for developer-first controls, region flexibility, and proactive deliverability. 

Feature
Mailgun
Mailchimp Transactional Email
API and SMTP sending 
REST API + SMTP relay
API + SMTP 
Logs and retention 
Event logs up to 30 days; message storage up to 7 days (by plan) 
Message content 30 days; aggregate stats retained longer
Inbound email routing/parsing 
Routing, spam filtering, JSON parsing, forwarding 
Inbound webhook
Deliverability toolkit 
Inbox Placement, blocklist/spam-trap monitoring, free DMARC reporting; dedicated IPs available 
Dedicated IPs and custom DNS; third-party tools recommended 
Email validation
Native Email Validation API 
Not included natively
Data regions
US and EU region choice per domain
US processing only
Dedicated IP pools
Available (add-on) with send-time optimization
Available (add-on) 

Results

By the numbers

Mailgun consistently outperforms industry benchmarks for delivery and engagement, while helping businesses control costs and scale value.

97.4%

Delivery rate from deliverability services customers, beating the industry average of 85%

0.42%

Average bounce rate. Well under the industry average bounce rate of 2%

+4 out of 5

User ratings on all major review platforms like G2 and Capterra

Pricing

Transparent pricing: Mailgun vs. Mailchimp

Mailgun offers a perpetual free tier (100 emails/day) and transparent, usage-based pricing, so you only pay for what you send. No need for a bundled marketing suite or premium plan. Mailgun delivers advanced deliverability, dedicated IPs, and region flexibility as add-ons—ideal for technical teams and projects of any size.

Mailchimp Transactional Email requires a separate Mailchimp Standard or Premium marketing plan before you can access transactional sending, with additional costs for credits and dedicated IPs. For most developers and technical teams, Mailgun is the simpler, more cost-effective solution. 

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Use Cases

Choose Mailgun if you want:

  • A standalone transactional email platform built for developers and product teams

  • Granular logs, webhooks, multi-domain/subaccount control, and usage-based pricing 

  • Integrated deliverability tools and region choice (EU/US) for compliance or latency

  • Scalable sending from 100k to millions/month

Image for Choose Mailgun if you want:

Use Cases

Choose Mailchimp transactional email if you’re looking for:

  • Transactional sending within your existing Mailchimp marketing account

  • Built-in rules engine for trigger-based workflows without code changes

  • A single UI for both marketing and transactional analytics

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FAQs

Frequently asked questions about Mailgun vs. Mailchimp

Mailgun fits developer-led apps needing API-first control, deliverability tools, and EU/US regions. Mailchimp fits teams already using its marketing suite.

Yes. Mailchimp Transactional (formerly Mandrill) provides SMTP/API sending, but typically requires a Mailchimp Standard or Premium plan. 

No. It’s developer-first, but the dashboard and docs are accessible to non-technical users who need reliable transactional email. 

No. Mailgun is a standalone platform for programmatic, transactional, and marketing email. Add-on plans are not required to send marketing campaigns using Mailgun. 

Inbox Placement seed tests, spam-trap and blocklist monitoring, built-in email validation, and free DMARC reporting via Red Sift. 

Mailgun offers US or EU regions per domain. Mailchimp Transactional data is processed in the US.

Mailgun retains event logs for 1–30 days and message storage up to 7 days (by plan). Mailchimp stores message content for 30 days.

Yes. Mailgun’s free tier allows 100 emails/day with no time limit.

Add and verify your domains in Mailgun, set up DNS (SPF, DKIM, DMARC), switch SMTP/API credentials, and test with seed inboxes before full cutover.

Yes. Mailgun includes native email validation to reduce bounces and improve inbox placement.

What customers say about Mailgun

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.
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Michael Sacca Vice President of Product at Dribbble
Mailgun has great ability in email delivery. It’s also really reliable as I have not heard my website users complaining about not receiving emails. The sort of new intuitive design makes me like Mailgun even more!
Lee P. Founder, small business
I got onto Mailgun six years ago for our email marketing app. And I’m still sticking with Mailgun because it’s the number one for email marketing. There’s no one else.
Sam Nguyen, Avada Commerce CEO

Explore beyond Mailchimp Transactional Email

Discover why technical teams pick Mailgun for transactional email. 

Solutions

Ensure every email hits the inbox
Email deliverability
Email list management
Email analytics

Use Cases

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Email testing tool
Check sender reputation
Email reputation check