Lumail vs Mailjet
Lumail
Mailjet
Email marketing platform and email API
Lumail and Mailjet pricing and feature comparison
Free emails / month
Lumail
3,000
Mailjet
6,000
Unlimited subscribers · $0
1,000 subscribers · $0
Paid entry
$20/month, 40,000 included, then $0.60/1,000
Starter $9/month (8,000 emails, 2,000 contacts); Essential from $17/month
Pricing basis
Unlimited subscribers; pricing follows email volume
Monthly email volume; contacts capped on Free (1,000) and Starter (2,000), unlimited on Essential and Premium
Automation
Graph workflows with triggers, branches, goals, exits, and A/B paths
Visual workflows on Premium 15k and higher only
AI and developer access
ChatGPT OAuth, MCP, skills, CLI, SDK, REST API, and visual editor
AI copy, templates, and segmentation from Essential; read-only MCP for Claude Desktop
Transactional email
Included through API, SMTP, SDK, CLI, and agent tools
Same account via Send API or SMTP in-v3.mailjet.com (587/465)
Publishing surface
Capture pages and custom web domains; not a general website builder
Drag-and-drop editor and forms on all plans; landing pages on Premium
Choose Lumail if…
- You want write-capable, organization-scoped MCP plus a ChatGPT OAuth plugin, CLI, and TypeScript SDK
- You need graph workflows on free and low-cost plans, not only Premium 15k+
- You want unlimited subscriber storage on every plan, including free
Choose Mailjet if…
- You need an EU-hosted ESP with MJML, real-time editor collaboration, and Sinch deliverability services
- You want SMTP/API transactional sending plus a marketer drag-and-drop editor in one account
- You need Premium landing pages, A/B testing, dedicated IPs (100k+), or Parse API (50k+)
Where Mailjet is strong
A real alternative, not a straw man.
Sinch Mailjet is a volume-priced ESP that combines a collaborative campaign editor with transactional sending over REST API and SMTP, plus EU-hosted deliverability. People pick Mailjet when they need teams that want marketing campaigns and transactional email in one EU-compliant ESP with a collaborative editor and SMTP/API sending.
- Volume-based email plans with unlimited contacts from Essential
- Marketing and transactional email on one platform (Send API, SMTP relay, webhooks)
- EU data centers with GDPR, ISO 27001, ISO 27701, and SOC 2 positioning
Don't trust the table. Run one journey.
Checklists lie by flattening the work. Build one real path: a trigger, a wait, a branch, a goal, an exit. Then open one subscriber and see what actually happened. That tells you more than any feature row.
- 1. Import a small, consented sample. Not the whole list.
- 2. Recreate one campaign and the audience it actually hits.
- 3. Publish one automation with a goal you can measure.
- 4. Fire a test and read every event on one person.
- 5. Compare the weekly work, not the setup afternoon.

Try it on a real send
Keep the whole list. Pay when you send.
3,000 emails free, no card. Rebuild one campaign, one workflow, and one transactional message before you move anyone. If it feels worse than Mailjet, stay.
The questions people actually ask
Is Lumail cheaper than Mailjet?
Sometimes. Lumail is $0 for 3,000 emails, then $20 for 40,000. Mailjet's number only makes sense after you know what they cap: contacts, seats, a daily send limit, or a feature they hide behind a paid plan. Read the honest take above, then price a normal month and a launch month on both pages.
What is the main difference between Lumail and Mailjet?
Choose Mailjet when you want a marketer-plus-developer ESP with EU data centers, MJML, SMTP/API transactional sending, and Premium automations. Choose Lumail when agents should operate the whole platform (89 org-scoped MCP tools, ChatGPT OAuth, CLI, SDK) and you want unlimited subscribers plus graph workflows on every plan.
Can I migrate from Mailjet to Lumail?
Yes. Don't move the whole list on day one. Export a small consented sample, rebuild one campaign and one automation, authenticate your domain, then watch one subscriber go through the run. If that feels right, move the rest.