Two transactional email providers, compared on price, features and ratings, so you can pick fast.
Mailjet wins price and sending APIsPostmark wins reviews
Updated July 2026
At a glanceMailjetPostmark
Entry priceFree$10
Cost per 1k @ 100k—$1.26
Free tier6,000/mo100/mo
G2 rating3.94.6
THE VERDICT
Mailjet wins on price and sending APIs. Postmark wins on reviews.
Mailjet starts at Free versus Postmark's $10. Postmark rates higher with developers (4.6 vs 3.9 on G2). Pick based on volume and team, and the scorecard below breaks down where each one leads.
Which should you choose?
Pick Mailjet
✓You want email marketing and transactional sending in one affordable platform
✓Your team needs real-time collaborative template editing
✓You want an EU-based, GDPR-first email provider
✓You are a startup or small team integrating email into your product
Winner cells are tinted, green where Mailjet leads, violet where Postmark does.
capability
Mailjet
Postmark
Pricing
Starting paid plan
$9/mo
$15/mo
Cost per 1k @ 100k
—
$1.26
Pricing model
Subscription
Subscription
Overage
—
$1.20–$1.80 per 1,000 by plan
Deliverability
Dedicated IP
Plan-gated
Add-on
Deliverability tooling
Yes
Yes
Automated IP warmup
—
No
Suppression management
Yes
Yes
SPF / DKIM / DMARC
Yes
Yes
API & sending
Transactional API
Yes
Yes
Marketing campaigns
Yes
No
SMTP relay
Yes
Yes
Inbound routing
Yes
Yes
Dynamic templates
Yes
Yes
Batch send
Yes
Yes
Scheduled send
Yes
No
Developer experience
Official SDKs
PHP, Ruby, Python, C#/.NET, Java, Node.js
.NET, Java, Node.js, PHP, Python, Ruby, Rails
Event webhooks
Yes
Yes
Drag-and-drop editor
Yes
No
Custom HTML editor
Yes
Yes
Email validation
Plan-gated
No
Log retention
—
45 days
Sandbox / test mode
Yes
Yes
Analytics
Open / click tracking
Yes
Yes
Analytics dashboard
Yes
Yes
A/B testing
Yes
No
Compliance
EU data residency
Yes
No
SOC 2
Yes
No
HIPAA
No
No
GDPR
Yes
Yes
ISO 27001
Yes
No
Support
Support channels
Email/ticket, Chat, Phone
Email, Chat
24/7 support
—
No
Support SLA
Plan-gated
No
FAQ
Common questions
Mailjet starts at Free versus Postmark's $10. Because pricing models differ by tier, the cheaper option depends on your monthly volume, so compare the pricing rows in the scorecard above.
Pricing, plans and feature availability as of July 2026 and may change. Ratings are aggregated from public review platforms. Mailjet is a Sinch product; Postmark is an ActiveCampaign product.