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Transactional Email Software · Rank #9 of 10

Mailjet review and pricing

French-built transactional + marketing email with EU data residency by default.

By Sinch (NYSE: SINCH) · Founded 2010 · Paris, France · public

Mailjet was founded in Paris in 2010 and acquired by Mailgun (then Pathwire, now Sinch) in 2019, making it part of the same parent group as Mailgun. The differentiation is geographic and regulatory: Mailjet was built in France with RGPD-native defaults, EU data residency, and EUR-native pricing — meaningful for French and German firms with strict residency requirements. The product covers both transactional API and a lighter marketing/email-campaigns layer on the same platform. The trade: under Sinch ownership the product narrative has fragmented between Mailgun (the dev-API brand) and Mailjet (the EU-positioned brand), and dev mindshare has shifted to younger entrants.

Visit Mailjet Vendor pricing Compare to Mailtrap
Best for

French, German, and other EU SMB/mid-market firms with strict EU data residency requirements and a desire for EUR-native billing.

Worst for

North American greenfield dev projects (Postmark/Resend dominate) and dedicated email-marketing buyers (Brevo, Mailchimp wins).

Vendor Trust Score

Is Mailjet a trustworthy vendor?

7.4/10
Mixed
Pricing transparency
Published rates; no hidden fees
8.0
Contract fairness
Reasonable terms; no auto-renew traps
7.5
Incident response
How they handle outages and breaches
7.5
Post-acquisition behavior
Customer treatment after M&A or PE
7.0
Executive stability
Leadership churn over 24 months
7.0
Roadmap honesty
Public commitments held
7.5
Trust signal log
  • 2019-09-19
    Acquired by Pathwire (parent of Mailgun, now Sinch)
  • 2021-02-08
    Sinch acquisition closed; Mailjet now part of Sinch CPaaS portfolio
Vendor Trust is scored independently of product quality. A great product from an unfair vendor still earns a low trust score.
Review Intelligence

What 420 reviews actually say

Synthesized from G2, Capterra, Reddit, Trustpilot. Patterns >15% prevalence shown.

Last synthesized
2026-04-29

Praise patterns

  • EU data residency by default valuable for RGPD/DSGVO
    71% →
  • EUR-native pricing for EU buyers
    64% →
  • Transactional + marketing on one platform
    47% →

Complaint patterns

  • Brand fragmentation between Mailjet and Mailgun under Sinch
    47% ↑
  • Pricing has crept up under Sinch ownership
    41% ↑
  • Marketing/campaigns side weaker than dedicated vendors
    38% →
Sentiment trend (6 months)
73/100 0 pts
11
12
01
02
03
04
Patterns are extracted from review corpus and human-verified. We surface trends, not anecdotes.
Verified Pricing

What buyers actually pay

87 anonymized deal disclosures · last updated 2026-04-30

Contribute your deal price
Company size Median annual
15K–50K emails/month $360
50K–300K emails/month $1,200
Verified pricing is crowdsourced from buyers under anonymity guarantees. Vendor-listed prices are validated against actual deals quarterly.
Compliance & Security

Auto-verified certifications

Verified 2026-04-15
SOC 2 Type II
ISO 27001
HIPAA
GDPR
CCPA
PCI DSS
FedRAMP

Editorial: Strengths

  • French-built with RGPD-native defaults and EU data residency by default
  • EUR-native pricing for EU buyers
  • Transactional API + lighter marketing campaigns on one platform
  • SMTP relay and HTTP API both mature
  • Strong fit for French and German firms with strict EU residency requirements
  • Multi-language support (French, German, Spanish, etc.)

Editorial: Weaknesses

  • Brand recognition lower outside continental Europe
  • Under Sinch ownership, narrative has fragmented between Mailjet and sibling Mailgun
  • Dev mindshare has shifted to Postmark and Resend for greenfield projects
  • Marketing/campaigns side weaker than dedicated email-marketing vendors
  • Pricing has crept up under Sinch ownership

Key features & integrations

  • +HTTP API and SMTP relay
  • +Transactional + marketing campaigns on one platform
  • +EU data residency default
  • +Multi-language UI
  • +Template management
  • +Webhooks for events
  • +Sub-accounts for agencies
  • +Inbound parsing
80+ integrations
ZapierSalesforceWordPressShopifyPipedriveSinch Engage
Geography supported
Global; EU-primary (France, Germany)
Best fit
1–500 employees · EU SMB and mid-market with residency requirements
Editorial deep-dive

Read our full ranking of Transactional Email Software

Mailjet ranks #9 in our editorial review of 10 transactional email software platforms. The deep-dive covers methodology, comparison tables, decision matrix, migration scoring, and FAQs.

Read the full ranking

Closest alternatives in Transactional Email Software

#8
Mailtrap
Email testing sandbox extended into production transactional sending.
★ 4.7 public
#10
Brevo Transactional API
Bundled transactional API on top of the broader Brevo marketing platform.
★ 4.5 public
#7
SparkPost
Enterprise transactional infrastructure built on the Momentum MTA.
★ 4.1 opaque
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