Mailjet

Mailjet is an email marketing and delivery platform for building campaigns and sending both marketing and transactional messages. It suits teams that need campaign tools alongside an API or SMTP relay, particularly when collaboration and EU-based data storage matter. Its free tier is useful for small volumes, while paid plans remove the daily cap and add room for larger lists and more advanced tools.

Overview

Mailjet brings email design, audience management, automation and developer sending tools together. Marketing teams can build responsive emails in a drag-and-drop editor, create forms and landing pages, segment audiences, personalize messages and track performance with real-time analytics. Developers can send and process email through the RESTful Email API, SMTP Relay, Parse API and Event API, with SDKs, webhooks and an MCP Server also available.

The range makes Mailjet a credible option for organizations handling both campaigns and transactional email. More than 100 ready-to-use integrations, including WordPress, WooCommerce, HubSpot and Shopify, make it easier to connect common services; custom integrations can use its API. The trade-off is that some useful capabilities, including priority support and advanced statistics, sit behind the Premium plan.

Key features

Campaigns and automation

The editor is designed for responsive, on-brand emails across devices. Segmentation, preference centers, A/B testing, previews, address validation and tracking cover much of the campaign workflow, while automation can trigger messages based on customer actions. These tools suit marketers who want more than a basic send-and-measure service; landing pages and AI email generation add further campaign options.

Sending, deliverability and teamwork

Monitoring, reputation protection, email previews, address validation, dedicated IPs and domain authentication address practical deliverability needs. Teams can use shared workspaces, roles, approval flows and real-time collaboration to coordinate campaigns and control permissions. Support ranges from online customer support to priority support, phone and chat, and technical account management; Premium includes priority support, while Custom plans include a dedicated technical account manager and deliverability services.

Mailjet says its infrastructure can scale to 15 million emails per hour per user. It uses ISO 27001- and SOC 2-certified infrastructure, stores customer data in EU-based data centers, and states that it is GDPR compliant and a Certified Sender Alliance participant. Those are relevant considerations for teams with security and data-location requirements, though they do not replace an organization's own compliance review.

Pricing

Mailjet has a free plan and monthly paid plans. The Free plan costs nothing, requires no credit card at signup, and includes 1,000 contacts, APIs, SMTP Relay, webhooks and basic statistics. Its 6,000-emails-per-month quota is also capped at 200 per day, so it suits modest, steady sending rather than concentrated campaigns.

Starter costs $9 a month, billed monthly, for 8,000 emails per month, 2,000 contacts, one subaccount and no daily sending limit. It is the lowest-cost paid option and a practical step up when the free plan's daily ceiling is the problem, but its contact allowance is smaller than Essential's.

Essential costs $19 a month, billed monthly, and includes 15,000 emails per month with no daily limit, unlimited contacts, 500 email previews per month and 500 email address validations. It fits senders with larger lists who want more validation capacity without the Premium feature set. Premium costs $29 a month, billed monthly, for the same 15,000-email monthly quota and no daily limit, plus advanced statistics, automations, landing pages and priority support. It is the more suitable choice when those marketing and support capabilities justify the price; Essential gives up those Premium inclusions.

Custom pricing applies to high-volume Enterprise plans, which include high-volume sending, a dedicated technical account manager, deliverability services, and custom users and subaccounts. Other Essential and Premium volume tiers are also offered, including plans at 50,000 emails per month and, for Premium, 100,000 emails per month; custom pricing applies to those tiers.

Monthly plans have no engagement commitment and can be changed to the free plan at any time. Unused email credits expire at the end of each billing cycle and do not roll over; additional emails can still be sent after credits run out and will be billed. Displayed prices generally exclude VAT and may be subject to French VAT. Mailjet accepts credit cards and wire transfers, and prepaid accounts require a $50 minimum deposit.

Platforms

Mailjet is available on the web and through an API. Its sending toolkit includes a RESTful Email API, SMTP Relay, SDKs, webhooks and an MCP Server. The platform also supports custom integrations through its API.

Who it's for

Mailjet is best suited to marketing teams and developers who want campaign management and transactional email delivery under one roof. Shared workspaces and approval flows are useful for teams coordinating email production, while API and SMTP options serve developers integrating sending into products or services. The Free plan can cover small, low-volume needs; senders who regularly exceed its daily cap need a paid plan. Teams seeking high-volume delivery or dedicated technical account management should consider Custom pricing.

Pros and cons

• Pro: Marketing and developer sending tools share one platform, so teams can manage campaigns and transactional email without separating those workflows.
• Pro: The free plan combines APIs and SMTP Relay with 1,000 contacts and 6,000 monthly emails, with no credit card required at signup.
• Pro: Roles, shared workspaces, approval flows and real-time collaboration support coordinated work across teams.
• Pro: EU-based data centers, ISO 27001 and SOC 2-certified infrastructure, and stated GDPR compliance suit organizations with data-location and security priorities.
• Con: The free plan's 200-email daily maximum can constrain campaigns even when monthly volume remains.
• Con: Unused credits expire and over-quota sending is billed, so senders need to manage monthly volume carefully.
• Con: Advanced statistics, automations, landing pages and priority support are Premium inclusions, not part of the cheaper paid tiers.

Alternatives

For a broader comparison, see Email Marketing Software.

• Mailchimp is worth considering if web, iOS and Android access matters; its free plan allows 250 contacts and 500 emails per month, far below Mailjet's free sending allowance.
• AWeber offers a free plan with lifetime access, up to 500 subscribers and 3,000 monthly emails; consider it if that smaller allowance fits your needs.
• Klaviyo has a free plan for up to 250 active profiles and 500 email sends per month, plus $5 of mobile messages per month; it may suit a smaller profile base.
• MailerLite offers 250 subscribers and 2,500 monthly emails on its free plan, along with two user seats, three automations and one landing page; consider it if those free-plan limits fit your operation.
• Zoho Campaigns includes 2,000 contacts, 6,000 emails per month and five users on its Forever Free plan; its contact and user allowances may suit a small team.
• GetResponse is an alternative with web, iOS and Android access as well as API support.
• SendPulse offers a free plan with 500 subscribers, 15,000 monthly emails and five automated flows; consider it if that combination of limits fits better.
• Omnisend provides a free plan for 250 contacts, 500 emails per month and 500 web push notifications; its free allowance may suit a smaller audience that also uses web push.

Verdict

Choose Mailjet if your team needs campaign creation, automation and transactional email delivery with developer APIs and collaboration controls in one service. Its free plan is a useful starting point, and paid tiers raise sending limits and add marketing capabilities, but the free daily cap and expiring credits demand attention. Look elsewhere if your audience and monthly needs fit an alternative's smaller free tier better, or if you need features Mailjet reserves for a higher plan.