Mailjet
Mailjet, a Sinch company based in Paris, sells transactional email through the Send API and an SMTP relay next to a marketing email platform, with customer data hosted in the EU. Plans are monthly subscriptions in USD, EUR or GBP with included volume and per-1,000 overage; the Free plan allows 6,000 emails a month, capped at 200 a day.
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Strengths, weaknesses and fit
Strengths
- Free forever: 6,000 emails per month (Transactional email)
- Official MCP server
- Test mode or test credentials documented
- Official SDKs in 7 languages
Weaknesses
- Webhooks are not signed
- No OAuth 2.0 — API keys only
- Limited channels: Email only
Not a fit if…
- you must verify that callbacks really come from the provider
- you build a multi-tenant app that acts on customers' own accounts
- you want several channels from one provider
Generated from threshold rules over the dated facts below, not written by hand. Rules with unverified inputs are skipped.
Transactional email: Mailjet Email API (Send API v3.1) and SMTP Relay
checked| Country | Availability | Payment scenarios |
|---|---|---|
| United States | YesOfficial docsWhere is Mailjet available? In which languages?Mailjet pricing | PartialOfficial docsTemplating Language OverviewMailjet integrations directory |
| Brazil | YesOfficial docsWhere is Mailjet available? In which languages?Mailjet pricing | PartialOfficial docsTemplating Language OverviewMailjet integrations directory |
| Mexico | YesOfficial docsWhere is Mailjet available? In which languages?Mailjet pricing | PartialOfficial docsTemplating Language OverviewMailjet integrations directory |
Mailjet pricing
checkedPrices as printed on the vendor's pages, in the vendor's currency. Scenario totals are computed from the listed components; carrier and Meta pass-through fees are shown separately and are not in the totals.
Transactional email
Same prices in United States, Brazil and Mexico.
| Plan | Price | Source |
|---|---|---|
| Free | Free | Official docs
checked |
| Starter (8,000 emails) | $9.00 / month | Official docs checked |
| Essential (15,000 emails) | $19.00 / month | Official docs checked |
| Essential (50,000 emails) | $40.00 / month | Official docs checked |
| Premium (15,000 emails) | $29.00 / month | Official docs checked |
| Premium (50,000 emails) | $59.00 / month | Official docs checked |
| Premium (100,000 emails) | $112.00 / month | Official docs checked |
| Premium (250,000 emails) | $265.00 / month | Official docs checked |
| Premium (500,000 emails) | $499.00 / month | Official docs checked |
| Custom | Contact sales | Official docs checked |
- 10,000 emails / month: $14.16 on Starter (8,000 emails)
- 100,000 emails / month: $112.00 on Premium (100,000 emails)
Transactional email: free access
Free forever: See detailsOfficial docsMailjet pricingMailjet Subscription Management
Trial: See detailsOfficial docsWelcome to Mailjet! Start Your Free Premium Trial Today
30 days · New accounts get 30 days of Premium features (automations, A/B testing, advanced analytics and others) while the Free plan's sending limits, including 200 emails a day, still apply. AI Assistant, validations and email previews are excluded. The account returns to Free afterwards. A card requirement for the trial is not stated; the Free plan itself needs none.
Developer & AI readiness
checkedWebhook signatures
Not signed
Official docs
Agent skills
CommunityOfficial, otherBuilt-in AI features
AI inside the product, not an API for building your own.
- AI content generationYesOfficial docs
- AI chatbotNoOfficial docs
- Answers from your knowledge baseNoOfficial docs
- AI APINoOfficial docs
- AI personalizationPartialOfficial docs
- Ready-made AI agentNoOfficial docs
Sources: AI template generator · Mailjet's AI Assistant · AI email marketing · Mailjet pricing · Mailjet developer documentation llms.txt · checked
No-code and manual editing
| Workflow builder | YesOfficial docsMailjet pricingMailjet Subscription Management |
|---|---|
| Template editor | YesOfficial docsMailjet pricingTemplating Language Overview |
| Chatbot builder | NoOfficial docsMailjet developer documentation llms.txtAI email marketing |
| Edit code and visual together | PartialOfficial docsContent API FAQMailjet Email API OpenAPI description (bundled) |
Works with AI app builders
Server code needed on every builder: YesOfficial docsAuthentication and API key managementWebhooks overview (Event API)
| Platform | Native integration | Official guide | Secrets |
|---|---|---|---|
| Claude Code | PartialOfficial docsInstalling the Mailjet MCP Servermailgun/mailjet-mcp-server | documentation.mailjet.com/hc/en-us/articles/42810091…Official docsInstalling the Mailjet MCP Server | MAILJET_API_KEY (public:private key pair) in the MCP server's env configurationOfficial docsInstalling the Mailjet MCP Servermailgun/mailjet-mcp-server |
| Cursor | NoOfficial docsInstalling the Mailjet MCP ServerMailjet GitHub organization | NoneOfficial docsInstalling the Mailjet MCP ServerMailjet developer documentation llms.txt | — |
| Replit | NoOfficial, otherReplit Agent integrations | NoneOfficial docsMailjet developer documentation llms.txtMailjet Help Center locales (Zendesk API) | — |
| Lovable | NoOfficial, otherLovable documentation llms.txt | NoneOfficial docsMailjet developer documentation llms.txtMailjet Help Center locales (Zendesk API) | — |
Paying and getting support locally
How customers pay the provider itself — separate from payment scenarios for your buyers.
United States
| Billing methods | credit card, wire transfer (prepaid), SEPA Direct Debit (EUR only)Official docsAvailable Payment Methods for Mailjet SubscriptionsMailjet pricing |
|---|---|
| Local payment methods | NoneOfficial docsAvailable Payment Methods for Mailjet Subscriptions |
| Billing currencies | USD, EUR, GBPOfficial docsMailjet pricingMailjet pricing (Spanish) |
| Interface languages | en, fr, de, es, it, pt, da, sv, nlOfficial docsWhere is Mailjet available? In which languages? |
| Docs languages | en, es, fr, de, it, pt-BROfficial docsMailjet Help Center locales (Zendesk API)Mailjet developer documentation llms.txt |
| Support languages | en, fr, de, esOfficial docsHow to Contact Mailjet Support |
| Local office | YesOfficial, otherSinch Mailjet – AI & LLM information hubAbout Mailjet |
Brazil
| Billing methods | credit card, wire transfer (prepaid), SEPA Direct Debit (EUR only)Official docsAvailable Payment Methods for Mailjet SubscriptionsMailjet pricing |
|---|---|
| Local payment methods | NoneOfficial docsAvailable Payment Methods for Mailjet Subscriptions |
| Billing currencies | USD, EUR, GBPOfficial docsMailjet pricingMailjet pricing (Spanish) |
| Local entity / tax invoice | NoOfficial docsSinch Email's Terms of Service |
| Interface languages | en, fr, de, es, it, pt, da, sv, nlOfficial docsWhere is Mailjet available? In which languages? |
| Docs languages | en, es, fr, de, it, pt-BROfficial docsMailjet Help Center locales (Zendesk API)Mailjet developer documentation llms.txt |
| Support languages | en, fr, de, esOfficial docsHow to Contact Mailjet Support |
Mexico
| Billing methods | credit card, wire transfer (prepaid), SEPA Direct Debit (EUR only)Official docsAvailable Payment Methods for Mailjet SubscriptionsMailjet pricing |
|---|---|
| Local payment methods | NoneOfficial docsAvailable Payment Methods for Mailjet Subscriptions |
| Billing currencies | USD, EUR, GBPOfficial docsMailjet pricingMailjet pricing (Spanish) |
| Local entity / tax invoice | NoOfficial docsSinch Email's Terms of Service |
| Interface languages | en, fr, de, es, it, pt, da, sv, nlOfficial docsWhere is Mailjet available? In which languages? |
| Docs languages | en, es, fr, de, it, pt-BROfficial docsMailjet Help Center locales (Zendesk API)Mailjet developer documentation llms.txt |
| Support languages | en, fr, de, esOfficial docsHow to Contact Mailjet Support |
Compliance & data protection
checkedWhat the vendor documents publicly. This is not a legal assessment and not a certification.
| Data processing agreement | YesOfficial docsSinch Data Processing AgreementSinch Email's Terms of Service |
|---|---|
| Subprocessor list | YesOfficial docsSinch sub-processors |
| Data residency options | YesOfficial docsWhere is my personal data stored?Sinch sub-processors |
| Residency regions | EU (Google Cloud: Frankfurt, Germany and Saint-Ghislain, Belgium)Official docsWhere is my personal data stored?Sinch sub-processors |
| Transfer mechanisms | EU Standard Contractual Clauses (in the Sinch DPA), UK Addendum to the EU SCCs, EU-U.S. Data Privacy Framework and UK Extension (Mailgun Technologies, Inc.)Official docsSinch Data Processing AgreementSinch Email privacy notice |
| Security documentation | ISO/IEC 27001, ISO/IEC 27701, SOC 2 Type IIOfficial, otherSinch Trust Center (Mailjet)Certified email security and EU data privacy |
| Local law page (BR) | PartialOfficial docsSinch Data Processing Agreement |
| Local law page (MX) | PartialOfficial docsSinch Data Processing Agreement |
How the rating is built
| Criterion | Weight | Result | Basis |
|---|---|---|---|
| Pricing & Free Tier (25) | 76.7 / 100coverage 100 % | ||
| Free access (transactional-email) | 12.50 | 93 % | free forever: 6,000 emails / monthsrcsrcsrc |
| Scenario price (transactional-email) | 10.00 | 50 % | 10,000 emails / month: USD 14.16 vs peer median USD 15.00 (13 providers); 100,000 emails / month: USD 112.00 vs peer median USD 74.85 (13 providers)srcsrcsrc |
| Pricing transparency (transactional-email) | 2.50 | 100 % | public self servesrcsrcsrc |
| Developer & AI Readiness (28) | 56.0 / 100coverage 93 % | ||
| MCP | 7.70 | 89 % | official (local)srcsrcsrc |
| Agent skills | 2.10 | 0 % | communitysrcsrc |
| Llms.txt | 0.70 | 100 % | publishedsrc |
| OpenAPI | 0.70 | 100 % | publishedsrcsrc |
| AI docs | 0.70 | 100 % | publishedsrcsrc |
| Scoped keys | 1.40 | 50 % | partialsrcsrcsrc |
| OAuth | 4.48 | 0 % | nosrcsrcsrc |
| Webhook signing | 1.96 | 20 % | unsignedsrcsrcsrc |
| SDKs | 2.24 | 100 % | 7 official SDK languagessrcsrcsrc |
| Test mode | 2.24 | 100 % | yessrc |
| Idempotency | 1.68 | 0 % | nosrc |
| Reputation & Reviews (25) | 80.5 / 100coverage 100 % | ||
| Review platforms | 25.00 | 81 % | global data: capterra 4.2/5 (456), g2 3.9/5 (176), trustpilot 4/5 (3,957) |
| Channel Coverage (10) | 20.0 / 100coverage 100 % | ||
| Channel groups | 10.00 | 20 % | 1 channel groups (native = 1, partner = 0.5)srcsrcsrc |
| Category Functionality (8) | 83.0 / 100coverage 100 % | ||
| SMTP relay (transactional-email) | 0.96 | 100 % | yessrcsrc |
| Inbound parsing (transactional-email) | 0.80 | 100 % | yessrcsrc |
| Templates (transactional-email) | 0.80 | 100 % | yessrcsrcsrc |
| Event webhooks (transactional-email) | 1.12 | 100 % | yessrcsrcsrc |
| Suppression mgmt (transactional-email) | 0.80 | 50 % | partialsrcsrcsrc |
| Dedicated IP (transactional-email) | 0.64 | 100 % | yessrcsrc |
| Log retention (transactional-email) | 0.64 | 100 % | yessrc |
| Scheduling (transactional-email) | 0.48 | 50 % | partialsrc |
| Attachments (transactional-email) | 0.32 | 100 % | yessrcsrc |
| Payment notifications (transactional-email) | 0.64 | 50 % | partialsrc |
| Native payment-provider integration (transactional-email) | 0.80 | 50 % | partialsrcsrcsrc |
| Localization & Regional Support (2) | 100.0 / 100coverage 100 % | ||
| Languages | 2.00 | 100 % | 3 of 3 target languages (en, pt, es)srcsrcsrc |
| Built-in AI Agent & Chatbot Deployment (2) | 0.0 / 100coverage 100 % | ||
| Ready-to-deploy AI agent | 2.00 | 0 % | nosrcsrc |
Weights and rules: rating methodology.
Sources
- About Mailjet — other, checked 23 September 2026
- Sinch Mailjet – AI & LLM information hub — other, checked 23 September 2026
- Sinch Email's Terms of Service — legal, checked 23 September 2026
- Sinch Email privacy notice — legal, checked 23 September 2026
- Sinch Data Processing Agreement — legal, checked 23 September 2026
- Sinch sub-processors — legal, checked 23 September 2026
- Mailjet AI Disclaimer — legal, checked 23 September 2026
- Certified email security and EU data privacy — other, checked 23 September 2026
- Sinch Trust Center (Mailjet) — other, checked 23 September 2026
- Mailjet pricing — pricing, checked 24 September 2026
- Mailjet pricing (Spanish) — pricing, checked 23 September 2026
- Mailjet Subscription Management — docs, checked 24 September 2026
- How can I prevent Extra Charges (overages)? — docs, checked 24 September 2026
- Available Payment Methods for Mailjet Subscriptions — docs, checked 23 September 2026
- Changes to Our Free Plan — docs, checked 23 September 2026
- What is this 200 emails per day limit on free accounts? — docs, checked 23 September 2026
- Inactive FREE Accounts: Deletion Process and Notifications — docs, checked 23 September 2026
- Mailjet Help Center locales (Zendesk API) — other, checked 23 September 2026
- Where is Mailjet available? In which languages? — docs, checked 23 September 2026
- How to Contact Mailjet Support — docs, checked 23 September 2026
- Where is my personal data stored? — docs, checked 23 September 2026
- Data Protection: Key Questions Answered — docs, checked 23 September 2026
- How long are my statistics kept? — docs, checked 23 September 2026
- How to reset my Secret Key? — docs, checked 23 September 2026
- Do you provide wrappers for Mailjet API in different programming languages? — docs, checked 23 September 2026
- Installing the Mailjet MCP Server — docs, checked 24 September 2026
- AI template generator — docs, checked 23 September 2026
- Mailjet's AI Assistant — docs, checked 23 September 2026
- How to Disable AI Features in Mailjet — docs, checked 23 September 2026
- Mailjet developer documentation llms.txt — docs, checked 24 September 2026
- Mailjet developer documentation sitemap — docs, checked 23 September 2026
- About the Mailjet's Email API — docs, checked 23 September 2026
- Authentication and API key management — docs, checked 23 September 2026
- Content API Bearer Token — docs, checked 23 September 2026
- Content API token permissions — docs, checked 23 September 2026
- Rate limits — docs, checked 23 September 2026
- SDKs — docs, checked 23 September 2026
- Mailjet Node.js SDK — docs, checked 23 September 2026
- Send API v3.1 Sandbox Mode — docs, checked 23 September 2026
- Send API v3.1 — send with attached files — docs, checked 23 September 2026
- Webhooks overview (Event API) — docs, checked 23 September 2026
- Webhook event types — docs, checked 23 September 2026
- Use third party queueing systems — docs, checked 23 September 2026
- Parse API: inbound emails — docs, checked 23 September 2026
- SMTP Relay standard configuration — docs, checked 23 September 2026
- Templating Language Overview — docs, checked 23 September 2026
- Content API FAQ — docs, checked 23 September 2026
- Mailjet Email API OpenAPI description (bundled) — docs, checked 24 September 2026
- Mailjet Content API OpenAPI description (bundled) — docs, checked 23 September 2026
- Mailjet GitHub organization — repo, checked 23 September 2026
- mailgun/mailjet-mcp-server — repo, checked 23 September 2026
- mailjet-mcp-server tool generation (src/mailjet-mcp.js) — repo, checked 23 September 2026
- @mailjet/mailjet-mcp-server on the npm registry — registry, checked 24 September 2026
- Official MCP Registry search for "mailjet" — registry, checked 24 September 2026
- funivan/send-email-mailjet-skill — repo, checked 23 September 2026
- mailjet/mailjet-apiv3-templating-samples — repo, checked 23 September 2026
- Claude connector directory — Mailjet — marketplace, checked 23 September 2026
- AI email marketing — other, checked 23 September 2026
- Break through the noise with SMS by Sinch — other, checked 23 September 2026
- Mailjet integrations directory — marketplace, checked 23 September 2026
- Stripe integration (via Zapier) — marketplace, checked 23 September 2026
- PayPal integration (via Zapier) — marketplace, checked 23 September 2026
- Lovable documentation llms.txt — platform-docs, checked 23 September 2026
- Replit Agent integrations — platform-docs, checked 23 September 2026