Mailjet vs Postmark 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.
Postmark
https://postmarkapp.com
Postmark is a transactional email delivery service that helps businesses send and track application emails, ensuring they reach users' inboxes reliably and quickly. The service specializes in delivering time-sensitive emails like password resets, welcome messages, and notifications with detailed analytics and delivery monitoring. Postmark is known for its robust infrastructure and high deliverability rates, making it popular among developers and businesses requiring dependable email delivery.
Quick Comparison
| Detail | Mailjet | Postmark |
|---|---|---|
| Category | Email Marketing | Email Marketing |
| Starting Price | Free | Free |
| Plans Available | 4 | 1 |
| Features Tracked | 17 | 1 |
| Founded | 2010 | 2009 |
| Headquarters | Paris, France | Philadelphia, USA |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| APIs & SMTP Relay | ||
| Webhooks | ||
| compliance | ||
| GDPR Compliance | ||
| core | ||
| A/B Testing | ||
| AI Email Generator | ||
| Advanced Segmentation | ||
| Contact Management | ||
| Email Automation | ||
| Email Editor | ||
| Email Tracking & Analytics | ||
| Form Builder | ||
| Inbox Preview | ||
| Landing Pages | ||
| Personalization | ||
| Real-time Collaboration | ||
| Transactional Templates | ||
| security | ||
| Role Management | ||
| SPF/DKIM Authentication | ||
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.
Postmark
From $0/mo
Price Components
- email: $0.0125/email
- email: $0.01/email
Best For
Developers and apps needing reliable, high-deliverability transactional emails like resets and notifications without marketing bloat.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Mailjet, Postmark 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.
Postmark
Developers and apps needing reliable, high-deliverability transactional emails like resets and notifications without marketing bloat.
- Lightning-fast delivery with publicly shared times and 99% rates for transactional emails.
- Message Streams separate promotional and transactional emails to protect deliverability.
- Seamless ActiveCampaign integration syncs contact data while maintaining top-notch delivery.
- Pay-as-you-go pricing ideal for variable transactional email volumes[service].
- Post-acquisition by ActiveCampaign, user reviews report declining service quality.
- Lacks full marketing automation features, focusing solely on transactional emails.
Company Info
Company details and background
Mailjet
Postmark
Comparison FAQ
Common questions about comparing Mailjet and Postmark
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