Mailjet

What Is Mailjet and How Does It Work?

Mailjet gives developers and marketers a combined transactional email API plus marketing campaigns platform. Developers integrate SMTP or REST API for transactional messages; marketing teams run campaigns with segmentation and AI content creation.

The typical Mailjet deployment covers a European or global business sending 6,000 to 15,000+ emails per month with a Free plan for evaluation and paid tiers adding contacts, subaccounts, AI features, and advanced statistics. Custom tier includes dedicated technical account manager and dedicated IP strategy.

Mailjet competes against Twilio SendGrid, Mailgun, and Postmark in the transactional email category and Mailchimp in marketing email with a differentiator on French/European base plus GDPR, HIPAA, and CSA certifications.

Mailjet at a Glance

Mailjet Pros and Cons in 2026

Where Mailjet Stands Out

• Combined transactional email API plus marketing campaigns in one platform.
• GDPR, HIPAA, and CSA certifications for regulated European and healthcare buyers.
• Real Free plan (6,000 emails/month, 1,000 contacts, no credit card).
• AI content creation on Essential and above.
• No daily sending limits on Starter and above.

Where Mailjet Falls Short

• Email credits do not roll over month to month.
• France VAT applies to European transactions.
• Dedicated IP requires Custom tier with sales conversation.
• Priority support requires Premium tier.
• Learning curve for teams migrating from simpler platforms.

Who Should Use Mailjet?

Mailjet fits developers integrating transactional email API into applications, marketing teams running email campaigns, and European businesses wanting GDPR-compliant email delivery. Small operations start on Free for 6,000 emails/month.

Growing marketers use Starter or Essential for higher volumes with brand kit and AI. Enterprise businesses engage Custom for dedicated technical account manager and dedicated IP strategy.

Not the right fit for pure ecommerce cart recovery (try Klaviyo or CartStack), enterprise B2B marketing automation (try Marketo or HubSpot Marketing Enterprise), or teams needing all-in-one CRM plus marketing.

Mailjet Product Suite in 2026

Free Plan

6,000 emails per month, 1,000 contacts, APIs, SMTP Relay, Basic Statistics.

Starter Plan

8,000 emails per month, 2,000 contacts, Brand Kit, Online support, 1 Subaccount.

Essential Plan

15,000 emails per month, Unlimited contacts, Segmentation, AI content creation, 500 validations.

Premium Plan

15,000 emails per month, Advanced Statistics, Automations, Landing Pages, Priority Support.

Custom Plan

High-volume with Dedicated Technical Account Manager, Dedicated IP Strategy, Blocklist Monitoring. Contact sales.

How Much Does Mailjet Cost in 2026?

Mailjet publishes 5 tiers on mailjet.com/pricing. Free covers 6,000 emails per month with 1,000 contacts, APIs, and SMTP Relay. Starter adds Brand Kit and Online support. Essential adds unlimited contacts, segmentation, AI content creation, and 500 validations. Premium adds Advanced Statistics, Automations, Landing Pages, and Priority Support. Custom includes Dedicated Technical Account Manager and Dedicated IP Strategy.

Monthly or annual billing with 10 percent discount for annual. No credit card required for Free plan. Multiple payment methods including wire transfers.

Cloud SaaS deployment from France.

Hidden Costs and Contract Notes to Watch

• Email credits do not roll over month to month.
• Dedicated IP requires Custom tier.
• French VAT applies to European transactions.
• Priority support requires Premium or above.
• Additional validations beyond tier default may incur fees.

Mailjet Alternatives Worth Comparing

Twilio SendGrid. Cloud email delivery and marketing platform with 100+ integrations.

Mailgun (Sinch). Transactional email API with developer focus.

Postmark. Transactional email service with strong deliverability focus.

Mailchimp. All-in-one marketing with strong template library.

Who Uses Mailjet?

Mailjet customers span developers, marketers, and businesses globally. Specific named enterprise customers are not disclosed on the public pricing page.

Points to Verify Before Buying Mailjet

Independent software review threads consistently flag a similar set of due-diligence questions buyers wish they had asked earlier. Cover these during your evaluation.

• Confirm monthly email volume for tier scoping.
• Verify France VAT applies if European entity.
• Test Free plan (6,000 emails, 1,000 contacts) before committing.
• Ask about GDPR, HIPAA, CSA certification documentation for your compliance team.
• Confirm Custom tier dedicated IP requirements if high-volume.

What Top-Ranking Mailjet Reviews Cover

Independent reviewers ranking on Google USA for Mailjet consistently surface these evaluation points buyers should verify during procurement.

• mailjet.com: Design, deliver, and automate marketing & transactional emails together with built-in deliverability, GDPR compliance, and developer-ready email APIs..
• en.wikipedia.org: Mailjet is a French email marketing platform founded in 2010.
• trustpilot.com: Written by the company.
• facebook.com: Sinch Mailjet.
• youtube.com: Sinch Mailjet is an easy-to-use platform for designing, sending, and monitoring email marketing campaigns, newsletters, and automated emails..

What Real Buyers Report About Mailjet

Independent operator discussions on Reddit r/marketing email discussions and Reddit r/Emailmarketing operator threads surface the following themes. Developer forums and European marketing operations LinkedIn groups describe Mailjet as a strong choice for combined transactional plus marketing email with GDPR compliance and French base for European buyers.

Common friction points center on email credits not rolling over month to month and French VAT for European transactions.

Long-term users on European marketing forums praise the GDPR, HIPAA, and CSA certifications for regulated buyers and the combined API plus marketing platform reducing stack complexity.

Related Mailjet Comparisons and Categories on SaaSRat

Explore related products and categories on SaaSRat to compare Mailjet against alternatives and see which vertical or feature comparison matches your buying criteria.

• Email Marketing category
• Mailchimp
• Postmark
• Email Archiving
• Email On Acid
• Popcorn Email Marketing
• Eliteemail
• Juvlon Email Marketing

Bottom Line: Is Mailjet Right for You?

Mailjet is a strong pick for developers and marketers needing combined transactional email API plus marketing campaigns from a France-based platform with GDPR, HIPAA, and CSA certifications.

Highlights: 5 published tiers from Free (6,000 emails/mo) through Custom Enterprise, real Free plan no credit card, AI content creation on Essential+, and GDPR/HIPAA/CSA certifications.

Trade-offs to weigh: email credits do not roll over, French VAT for European transactions, dedicated IP requires Custom tier, and priority support requires Premium+.

Consider Twilio SendGrid for cloud email delivery with 100+ integrations, Mailgun for developer transactional email, Postmark for deliverability focus, or Mailchimp for all-in-one marketing.

Verified on 2026-07-09 by the SaaSRat Editorial Team (Chirantan Patel, Senior SaaS Research Editor). Vendor facts cross-checked against the mailjet vendor website, LinkedIn showcase pages, and community discussions on Reddit and industry LinkedIn groups. About our methodology.