Mailjet vs PostHog Comparison
Detailed comparison of features, pricing, and capabilities
Last updated April 4, 2026
Overview
Compare key metrics and features at a glance
Mailjet
https://www.mailjet.com
Mailjet is a cloud-based email delivery and tracking platform that enables businesses to send marketing and transactional emails. The service provides features for email automation, template design, A/B testing, and advanced analytics for monitoring email performance. As part of Sinch, Mailjet offers comprehensive APIs and SMTP relay services for developers while maintaining user-friendly email marketing tools for marketers.
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 | Mailjet | PostHog |
|---|---|---|
| Category | Email Marketing | Cookieless Analytics |
| Starting Price | Free | Free |
| Plans Available | 4 | 3 |
| Features Tracked | 17 | 18 |
| Founded | 2010 | 2020 |
| Headquarters | Paris, France | San Francisco, USA |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| APIs & SMTP Relay | ||
| Webhooks | ||
| compliance | ||
| Consent Management Integration | ||
| GDPR Compliance | ||
| GDPR Compliance Support | ||
| IP Data Capture Control | ||
| PostHog Cloud EU | Add-on | |
| Top-Level Opt Out | ||
| core | ||
| A/B Testing | ||
| AI Email Generator | ||
| Advanced Segmentation | ||
| Autocapture Configuration | ||
| Contact Management | ||
| Cookieless Mode (Always) | ||
| Cookieless Mode (On Reject) | ||
| Email Automation | ||
| Email Editor | ||
| Email Tracking & Analytics | ||
| Event Data Filtering | ||
| Feature Flags | ||
| Form Builder | ||
| Inbox Preview | ||
| Landing Pages | ||
| Local Storage Persistence | ||
| Memory-Only Persistence | ||
| Open Source | ||
| Personalization | ||
| Real-time Collaboration | ||
| Session Replay | ||
| Surveys | ||
| User Identification Management | ||
| security | ||
| Privacy-Preserving User Hashing | ||
| Role Management | ||
| SPF/DKIM Authentication | ||
| Sensitive Data Masking | ||
Pricing
Compare pricing plans and value for money
Mailjet
From $0/mo
Price Components
- emails: $0/email (6000 included)
- base_subscription: $17/month (15000 included)
- email_previews: $0/preview (500 included)
- email_validations: $0/validation (500 included)
- base_subscription: $27/month (15000 included)
Best For
Small to mid-sized teams and developers needing affordable email automation, robust APIs, and real-time collaboration for targeted 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 Mailjet, PostHog is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
Mailjet
Small to mid-sized teams and developers needing affordable email automation, robust APIs, and real-time collaboration for targeted marketing campaigns.
- Offers real-time collaboration in Passport editor for multiple users to edit campaigns simultaneously with version control.
- Supports A/B testing of up to ten email versions on subject lines, content, and design to boost performance.
- Provides forever free plan with core features and low Essential tier at $17/month for 15,000 emails without daily limits.
- Includes open-source MCP Server for conversational AI queries on campaign analytics like open rates by country.
- Free plan includes daily sending limits and Mailjet branding on emails.
- Lacks dominance compared to market leaders like Mailchimp and Klaviyo in overall share.
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
Mailjet
PostHog
Comparison FAQ
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