Feature Comparison For Reliable Deliverability

Mailgun vs. SMTP.com

Mailgun leads on deliverability tools, analytics, and pricing flexibility, while SMTP.com suits simpler needs with basic SMTP and support. Use the side-by-side breakdown below to choose based on volume, compliance, and budget.

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Deliverability

Improve inbox placement with advanced deliverability

Boost your email performance with Mailgun’s powerful deliverability suite—test inbox placement, monitor blocklists, and integrate Google Postmaster Tools and Microsoft SNDS for better results. Gain actionable insights before sending and reduce deliverability risks, improving engagement and sender reputation. 

  • Test inbox placement before sending to spot issues early 

  • Monitor blocklists and spam traps for ongoing reputation health 

  • Integrate Google Postmaster and Microsoft SNDS to catch deliverability drops fast 

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Reliability and Scale

Speed, scale, and reliability for every email send

Send with confidence using Mailgun’s 99.99% uptime SLA, high burst throughput, and extended log retention for troubleshooting and analytics. Keep your business running smoothly while scaling email programs for both transactional and marketing needs. 

  • Achieve 99.99% uptime SLA and burst throughput up to 250,000/minute 

  • Troubleshoot with ease and certainty leveraging deep reporting with integrated logs and bounce classification

  • Support high-volume, global sending for all use cases

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Developer Experience

Built for developers and teams at any scale

Build your development workflow with REST APIs, SMTP relay, robust webhooks, and flexible team management—designed for modern product and engineering teams. Streamline integration, automate workflows, and securely manage teams across projects and environments. 

  • Integrate using REST API, SMTP relay, webhooks, and templates 

  • Collaborate with unlimited team seats and SAML SSO 

  • Securely manage access with role-based API keys 

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Compare Features

Mailgun vs. SMTP.com

See how Mailgun and SMTP.com stack up across deliverability, developer tools, and pricing. Mailgun’s robust analytics and feature set deliver more value for scaling teams. 

Mailgun
SMTP.com
REST API & SMTP Relay
✅ Yes 
✅ Yes 
Deliverability Suite (Inbox Tests, Blocklist Monitoring, Postmaster/SNDS Integration)
✅ Yes with Mailgun Optimize
Limited features with Reputation Defender add-on
Uptime SLA
✅ Yes 
Not publicly listed
Inbox Preview/Seed Testing
✅ Yes 
❌ No 
Webooks & Analytics (log retention)
✅ Yes 
✅ Yes 
Templates & Email Editor
✅ Yes 
❌ No 
Inbound Routing/Email Parsing
✅ Yes 
❌ No 
Dedicated IPs
✅ Yes (from $59/mo)
✅ Yes (from $80/mo)
SAML SSO & RBAC API Keys
✅ Yes (Scale & up)
❌ No 
EU/US Sending Regions
✅ Yes 
US only
Free Plan
✅ Yes (100 emails/day)
❌ No 

User Reviews

Mailgun earns higher marks for reliability and analytics

Reviewers consistently rate Mailgun above SMTP.com for reliability, deliverability, and developer experience. Customers praise Mailgun’s powerful API, robust analytics, strong deliverability tooling, and responsive support on paid plans, making it the preferred choice for teams that need dependable, data-driven email solutions.

Mailgun
SMTP.com
G2 Rating
4.2 out of 5
3.3 out of 5
Capterra
4+ out of 5
Not listed
Trustpilot
4.1 out of 5
2.6 out of 5

Performance Metrics

Results that drive business impact

Mailgun customers see industry-leading delivery, engagement, and cost savings—helping businesses grow faster and smarter.

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97.4% Average Delivery Rate

Beats 85% industry average and results in higher inbox placement

0.42% Average Bounce Rate

Below 2% average. Reduces failures and helps build a stronger sender reputation

50% Reduction

In total cost to send email

Pricing and value

Transparent pricing with free plan and scalable tiers

Mailgun offers flexible pricing starting with a forever free plan (100 emails/day) and affordable paid tiers, making it easy to scale as you grow. Plans start at just $15/month for 10,000 emails and add advanced features and log retention as you move up—no contracts required. 

Unlike SMTP.com, Mailgun’s transparent pricing and feature-rich plans help you grow without hidden fees or mandatory long-term commitments.

  • Dedicated IPs are available from $59/month 

  • Deliverability tools from $49/month.

View pricing and plans

Use Cases

Who should use Sinch Mailgun?

Both Mailgun and SMTP.com offer reliable email infrastructure, but Mailgun is best for teams needing advanced analytics, automation, and flexibility, while SMTP.com is suited for simple use cases and support-focused onboarding.

Choose Mailgun if you want:  

  • Advanced deliverability tools and analytics

  • Developer-grade APIs and workflow automation

  • Flexible pricing and a free plan

  • High-volume sending, uptime SLAs, and real-time logs

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Use Cases

Who should use SMTP.com?

Choose SMTP.com if you’re looking for:

  • Simple UI and straightforward setup

  • Dedicated IP access at lower entry volumes

  • US-based sending and are okay with a 30-day cancellation notice

  • Basic analytics 

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FAQs

Frequently Asked Questions on Mailgun vs. SMTP.com

Below are answers to common questions about features, migration, pricing, and platform capabilities.

For most teams, Mailgun is better for deliverability tooling, analytics, and developer features. SMTP.com fits simpler SMTP needs with a support-driven approach.

Mailgun Optimize provides inbox placement testing, blocklist and spam trap monitoring, and Postmaster/SNDS integrations. SMTP.com offers limited options via its Reputation Defender add-on.

Mailgun offers a free plan with 100 emails/day. SMTP.com does not offer a free plan. 

View pricing and plans

Mailgun: plans from $15/mo; dedicated IPs from $59/mo. SMTP.com: dedicated IPs from $80/mo. Check each provider for current rates.

View pricing and plans

Mailgun publishes a 99.99% uptime SLA. SMTP.com does not prominently list an SLA. 

Mailgun supports EU and US regions. SMTP.com is US-focused. 

Mailgun retains logs and analytics up to 30 days on paid plans with robust webhooks and event data. SMTP.com offers shorter retention. 

Yes. Point DNS to Mailgun, warm dedicated IPs if used, import suppression lists, and validate domains. Most teams complete migration in phases to preserve reputation. 

Yes. Both Mailgun and SMTP.com support SMTP relay and REST APIs. 

Mailgun supports burst throughput up to 250,000 messages per minute (with appropriate plan and warmup). Check SMTP.com for specific throughput guidance. 

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.
Photo of Michael Sacca
Michael Sacca Vice President of Product at Dribbble
“When we look at deliverability on our end – Mailgun is the first line of defense if anything goes wrong.”
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Casey Henry Chief Technology Officer at SparkToro
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

Explore beyond SMTP.com

Don’t settle for basic email APIs. Explore the developer-first platform built for speed, scale, and rock-solid deliverability. 

Solutions

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

Use Cases

Read how other companies are using Mailgun
Email testing tool
Check sender reputation
Email reputation check