Mailgun vs PostHog Comparison
Detailed comparison of features, pricing, and capabilities
Last updated April 4, 2026
Overview
Compare key metrics and features at a glance
Mailgun
https://www.mailgun.com
Mailgun is a transactional email API service that enables developers to send, receive, and track emails through their applications using RESTful APIs. The service provides powerful email validation, tracking, and analytics features, along with SMTP integration and detailed logs for debugging. Mailgun specializes in handling large volumes of automated emails including notifications, confirmations, and marketing communications.
PostHog
https://posthog.com
PostHog is an open-source product analytics platform that helps companies understand user behavior. It provides features like event tracking, session recording, feature flags, and A/B testing, allowing teams to self-host their analytics infrastructure and maintain complete data control. The platform is designed to be a privacy-focused alternative to traditional product analytics tools.
Quick Comparison
| Detail | Mailgun | PostHog |
|---|---|---|
| Category | Email Marketing | Cookieless Analytics |
| Starting Price | Free | Free |
| Plans Available | 5 | 3 |
| Features Tracked | 16 | 18 |
| Founded | 2010 | 2020 |
| Headquarters | San Francisco, USA | San Francisco, USA |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| RESTful Email APIs | ||
| compliance | ||
| Consent Management Integration | ||
| GDPR Compliance Support | ||
| IP Data Capture Control | ||
| PostHog Cloud EU | Add-on | |
| Suppression Lists | ||
| Top-Level Opt Out | ||
| core | ||
| Autocapture Configuration | ||
| Bounce Classification | ||
| Cookieless Mode (Always) | ||
| Cookieless Mode (On Reject) | ||
| Email Template Builder | ||
| Email Validation API | ||
| Event Data Filtering | ||
| Feature Flags | ||
| Inbound Routing | ||
| Inbox Placement | ||
| List Segmentation | ||
| Local Storage Persistence | ||
| Memory-Only Persistence | ||
| Open Source | ||
| Rapid Fire | ||
| SMTP Relay | ||
| Send Time Optimization | ||
| Session Replay | ||
| Surveys | ||
| Tracking & Analytics | ||
| User Identification Management | ||
| custom | ||
| Custom Sending Domains | ||
| Dedicated IPs | Add-on | |
| integration | ||
| Email Parsing | ||
| security | ||
| Authentication Protocols | ||
| Privacy-Preserving User Hashing | ||
| Sensitive Data Masking | ||
Pricing
Compare pricing plans and value for money
Mailgun
From $0/mo
Price Components
- base_fee: $0/month
- emails: $0/email (100 included)
- base_fee: $15/month
- emails: $0/email (10000 included)
- overage_emails: $0.0018/email
Best For
Developers and apps needing reliable, high-volume transactional email APIs with validation and tracking, not broad marketing campaigns.
PostHog
From $0/mo
Price Components
- base_fee: $0/month
- Product Analytics Events: $0/event (1000000 included)
- Product Analytics Events: $0.00005/event
- Product Analytics Events: $0.0000343/event
- Session Replay: $0/recording (5000 included)
Best For
Engineering-led product teams and startups needing a self-hostable, privacy-first all-in-one analytics suite with cookieless tracking, session replay, and experimentation tools.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Mailgun, PostHog is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
Mailgun
Developers and apps needing reliable, high-volume transactional email APIs with validation and tracking, not broad marketing campaigns.
- Developer-centric RESTful APIs and SMTP relay excel for high-volume transactional emails, unlike marketing-focused ESPs like Mailchimp.
- Email Validation API and Inbox Placement reduce bounces and optimize deliverability, key in a growing market.
- Rapid Fire enables burst sending for millions of emails on Scale+ plans, ideal for time-sensitive notifications.
- Flexible overage fees prevent hard caps, supporting seamless scaling from $15/mo Basic plan.
- Holds only 0.22% market share, ranking #27, trailing leaders like Mailchimp and SendGrid.
- Lacks drag-and-drop editors and audience automation of full marketing platforms like HubSpot.
- Higher tiers like Scale at $90/mo required for SSO and dedicated IPs, pricier for advanced needs.
PostHog
Engineering-led product teams and startups needing a self-hostable, privacy-first all-in-one analytics suite with cookieless tracking, session replay, and experimentation tools.
- All-in-one platform bundles cookieless analytics with session replay, feature flags, and A/B testing, replacing multiple tools like FullStory and LaunchDarkly.
- Generous free tier up to 1M events/month with usage-based pay-as-you-go pricing, scaling transparently without fixed costs.
- Open-source and self-hostable with EU cloud hosting, cookieless modes (Always/On Reject), and HIPAA-ready compliance for full data control.
- Privacy-preserving server-side hashing and autocapture enable high-fidelity tracking without cookie banners or PII storage.
- Self-hosting is complex, resource-heavy (4x RAM of simpler tools), and lacks feature parity with cloud version.
- Overwhelming interface with extensive features that most teams won't fully utilize.
- No native ad platform integrations like Google Ads, unlike GA4.
Company Info
Company details and background
Mailgun
PostHog
Comparison FAQ
Common questions about comparing Mailgun and PostHog
No FAQs available yet