Mailjet Review — Honest Pros, Cons & Pricing (2026)

Category: Transactional and marketing email platform (NOT for cold email)

Also known as: mailjet.

Overview

Mailjet is an email delivery platform by Sinch that covers both transactional and marketing email through its API and SMTP relay. It includes a drag and drop editor, A/B testing, and real time monitoring. Mailjet is NOT for cold email. It's designed for sending to opted in contacts only, and the terms of service explicitly prohibit unsolicited outreach. The platform works well for teams that need both a marketing email tool and a transactional email API in one place. The free tier at 200 emails per day makes it accessible for startups building their first email workflows. If you need a cold email sending platform, look at tools like Instantly or Smartlead instead.

Pricing

Free: 200 emails/day. Essential: $15/month (15,000 emails). Premium: $25/month (15,000 emails with advanced features). Custom enterprise pricing.

Strengths

Covers both transactional and marketing email in one platform
Free tier at 200 emails per day for small operations
Drag and drop editor for marketing email design
Real time monitoring and A/B testing built in

Weaknesses

Not for cold email or unsolicited outreach
Free tier daily limit is restrictive for growing teams
Marketing features less advanced than dedicated tools like Mailchimp
No cold email sequences, warmup, or inbox rotation

Best For

Startups needing both transactional and marketing email on a budget
Teams wanting a simple email API with a visual editor
Companies sending opted in marketing campaigns alongside product emails

Not Ideal For

Cold email outreach of any kind (prohibited by terms of service)
Teams needing advanced marketing automation workflows