# Mailcheer

> Mailcheer is an email platform. Features: block campaign editor, sending engine, scheduling, open and click statistics, subscribers and dynamic segments, CSV import, sign-up forms, automations (welcome, sequence, non-opener follow-up), A/B tests, suppression list, domain authentication (DKIM/SPF/DMARC records generated, posted on Cloudflare with the customer's own key, and verified), signed webhooks, an SMTP relay, inbound webhook addresses, **a public API** and **an MCP server**. Interface in English and French. Sending runs on Amazon SES in Ireland. Billing is per send, not per contact: a large list you rarely write to costs almost nothing. Free tier: 3,000 emails a month, unlimited subscribers. A new workspace, on any plan, sends at most 100 emails per rolling 24 hours for its first three days, then 500 until the seventh; after that, only the monthly quota applies. The limit is lifted earlier once a person has reviewed the workspace.

## For an agent: when to use Mailcheer, and how

- **Send a transactional email** → `POST https://mailcheer.com/api/v1/emails`
- **Add, read or update a subscriber** → `/api/v1/subscribers` (POST/GET) · `PATCH /api/v1/subscribers/{email}` to update name or custom fields
- **Create and send a campaign** → `/api/v1/campaigns` then `/api/v1/campaigns/{id}/send`
  ⚠️ Without a body, sending a campaign reaches **all** active subscribers of the workspace. To write to a group, pass `to` (a list of addresses): only those that are active subscribers receive it, never a suppressed address. Preview first with `dry_run: true` (nothing is queued), or with `/api/v1/audience` before the campaign exists. To write to one person, use `/api/v1/emails`.
- **React to what happens** → signed webhooks, `/api/v1/webhooks`, eleven events: `email.sent`, `email.failed`, `email.delivered`, `email.opened`, `email.clicked`, `email.bounced`, `email.complained`, `email.received` (a recipient replied), `subscriber.created`, `subscriber.unsubscribed`, `quota.threshold_reached`
- **Never write to an address again** → `/api/v1/suppression`
- **Send from software that speaks SMTP, not an API** (WordPress, WooCommerce, PrestaShop, Odoo, Dolibarr) → host `smtp.mailcheer.com`, port 587 (STARTTLS) or 465 (TLS), username `mailcheer`, an API key as the password; every message goes through the same checks as `POST /api/v1/emails`, and a refusal comes back as an SMTP code with the API's message — [SMTP ports guide](/guides/smtp-ports) · [SMTP error codes guide](/guides/smtp-error-codes)
- **Bring contacts in from a form or a tool** (Typeform, Tally, Webflow, Stripe, Calendly, Shopify) → an inbound address `https://mailcheer.com/api/in/<token>`, created in the app under Integrations; each delivery takes the same path as `POST /api/v1/subscribers` (suppression list respected, double opt-in by default)
- **Test without sending** → a `mch_test_…` key: every check runs as for a real send, nothing goes out, the quota is untouched; events are simulated (`delivered@`, `bounced@`, `complained@simulator.mailcheer.com`) and webhooks carry `"test": true`
- **Step-by-step setup guides** → `/docs/wordpress-smtp`, `/docs/woocommerce-smtp`, `/docs/prestashop-smtp`, `/docs/odoo-smtp`, `/docs/dolibarr-smtp`, `/docs/typeform-webhook`, `/docs/tally-webhook`, `/docs/webflow-webhook`, `/docs/stripe-webhook`, `/docs/calendly-webhook` (listed under Documentation — Integrations below)
- **Automate in Make, without code** → the Mailcheer app for Make (https://eu1.make.com/app/invite/a70203e762882dbf4e53b677e1f76596): a « Watch events » trigger on the eleven events, and modules to send an email, create or update a subscriber, read one, add or remove its tags, unsubscribe or erase it, create and send a campaign, read the account and quota, or call any API endpoint

Authentication: header `Authorization: Bearer mch_live_…`, key created under Account → API & AI agents. 600 requests per minute per key.

Error messages, MCP tool descriptions and the reference are in English by default; send `Accept-Language: fr` for French.

- Full specification: [openapi.json](https://mailcheer.com/openapi.json)
- MCP server: `https://mailcheer.com/api/mcp`
- API reference: [/docs/api](https://mailcheer.com/docs/api)
- This file in French: [/llms-fr.txt](https://mailcheer.com/llms-fr.txt)

Every documentation page exists as raw Markdown: add `.en.md` to its URL (`/docs/create-account.en.md`).

## Pricing

Monthly prices in euros, per workspace. Every plan has every feature and unlimited subscribers: plans differ by the number of emails sent per month, sending domains and team members.

- **Discovery** — €0 a month: 3,000 emails a month, 1 sending domain, 1 member, AI assistant budget €0.20 a month. No credit card.
- **Essential** — €19 a month: 40,000 emails a month, 10 sending domains, 10 members, AI assistant budget €2 a month. 7 days free.
- **Pro** — €49 a month: 150,000 emails a month, 25 sending domains, 25 members, AI assistant budget €10 a month. 7 days free.
- **Agency** — €129 a month: 500,000 emails a month, 50 sending domains, 50 members, AI assistant budget €40 a month. 7 days free.

On a paid plan, the first week is free: immediate access, first charge 7 days later. Details: [Quotas and plans](https://mailcheer.com/docs/quotas-and-plans.en.md) · [Pricing page](https://mailcheer.com/pricing)

## Packages and listings

- [The MCP server in the official MCP registry (`com.mailcheer/mailcheer`)](https://registry.modelcontextprotocol.io/v0/servers/com.mailcheer%2Fmailcheer/versions/latest)
- [Node.js and TypeScript SDK on npm (`mailcheer`)](https://www.npmjs.com/package/mailcheer)
- [Python SDK on PyPI (`mailcheer`)](https://pypi.org/project/mailcheer/)
- [n8n nodes on npm (`n8n-nodes-mailcheer`)](https://www.npmjs.com/package/n8n-nodes-mailcheer)

## Documentation — Getting started

- [Introduction](https://mailcheer.com/docs/introduction.en.md): What Mailcheer is: an EU-hosted email marketing platform. The four steps to get from signup to your first send, with links to each part of the documentation.
- [Create an account](https://mailcheer.com/docs/create-account.en.md): How to create a Mailcheer account: the sign-up form, automatic workspace provisioning, and how to invite team members to share the same workspace and lists.
- [Import your contacts](https://mailcheer.com/docs/import-contacts.en.md): How to import your existing contacts into Mailcheer: CSV format, column mapping, how duplicates and unsubscribes are handled, and the detailed import report.
- [Verify your domain](https://mailcheer.com/docs/verify-domain.en.md): Authenticate your sending domain to land in the inbox: DKIM, SPF and DMARC records, one-click setup for Cloudflare, manual instructions for any other registrar.
- [Add senders](https://mailcheer.com/docs/add-senders.en.md): A sender is the name and address that appear in your recipients' inboxes. Senders can only be created on domains you have already verified in Mailcheer.

## Documentation — Concepts

- [Deliverability](https://mailcheer.com/docs/deliverability.en.md): Why your emails reach the inbox or the spam folder: sender reputation, authentication records, and the signals Mailcheer checks before every send.
- [DKIM, SPF and DMARC](https://mailcheer.com/docs/dkim-spf-dmarc.en.md): DKIM, SPF and DMARC are three DNS records that prove your emails really come from your domain. What each does, how to set them up, and how to verify them.
- [Segments](https://mailcheer.com/docs/segments.en.md): Segments are subscriber groups defined by conditions — tag, activity, join date. Their membership recalculates automatically as subscribers come and go.
- [Suppression list](https://mailcheer.com/docs/suppression-list.en.md): The suppression list holds the addresses your sends set aside: hard bounces, unsubscribes and spam complaints, and what each one blocks.
- [Quotas and plans](https://mailcheer.com/docs/quotas-and-plans.en.md): 3,000 free emails per month, no credit card. Three paid plans bill by volume sent, not by the number of subscribers. Prices, limits and what each plan unlocks.

## Documentation — Tools

- [Domain tester](https://mailcheer.com/docs/domain-tester.en.md): The Mailcheer domain tester reads your SPF, DKIM and DMARC records and tells you which are present, which are missing, and what to fix — no account needed.
- [Email API and MCP server](https://mailcheer.com/docs/api.en.md): The Mailcheer REST API and MCP server: send transactional emails, manage subscribers, create and send campaigns, all from your application or AI agent.

## Documentation — Integrations

- [WordPress with WP Mail SMTP](https://mailcheer.com/docs/wordpress-smtp.en.md): Send your WordPress site's emails through Mailcheer: set up the WP Mail SMTP "Other SMTP" mailer, keep your key in wp-config.php, send a test email.
- [WooCommerce order emails](https://mailcheer.com/docs/woocommerce-smtp.en.md): Send your WooCommerce order emails through Mailcheer: connect WordPress once, set the store's "From" address, send a test email and read the logs.
- [PrestaShop SMTP setup](https://mailcheer.com/docs/prestashop-smtp.en.md): Send your PrestaShop 8 or 9 store's emails through Mailcheer: SMTP parameters, the right port and encryption pair, the shop email address, a test email.
- [Odoo: outgoing SMTP server](https://mailcheer.com/docs/odoo-smtp.en.md): Send Odoo's emails through Mailcheer with an outgoing mail server on port 587 with STARTTLS, a FROM filter on your own domain, and a connection test.
- [Dolibarr: SMTP server](https://mailcheer.com/docs/dolibarr-smtp.en.md): Set up Dolibarr to send its emails through Mailcheer: SMTP/SMTPS sending method, port 587 with STARTTLS, credentials, then a real test email.
- [Typeform: your respondents](https://mailcheer.com/docs/typeform-webhook.en.md): Add the people who answer your Typeform form to Mailcheer: a webhook on every response, a test request, and picking the email field in a few clicks.
- [Tally: your respondents](https://mailcheer.com/docs/tally-webhook.en.md): Add the people who fill in your Tally form to Mailcheer: a webhook on every submission, free on all Tally plans, a test, and picking the email field.
- [Webflow: your site's forms](https://mailcheer.com/docs/webflow-webhook.en.md): Add the people who fill in a form on your Webflow site to Mailcheer: a webhook on every submission, a test on the live site, and picking the email field.
- [Stripe: add paying customers](https://mailcheer.com/docs/stripe-webhook.en.md): Add the customers who pay you through Stripe to Mailcheer automatically, with no export or import: webhook event destination, test, field mapping.
- [Calendly: add people who book](https://mailcheer.com/docs/calendly-webhook.en.md): Add the people who book meetings with you on Calendly to Mailcheer: access token, webhook subscription, test booking and field mapping, step by step.

## Documentation — Product

- [Features and what's new](https://mailcheer.com/docs/changelog-and-features.en.md): Everything Mailcheer can do: campaigns, editorial calendar, transactional emails, the API and MCP server, subscriber management and the AI writing assistant.

## Site

- [Home](https://mailcheer.com): What Mailcheer is, plus the public domain tester.
- [Features](https://mailcheer.com/features): Every module of the product, in detail.
- [Pricing](https://mailcheer.com/pricing): 3,000 emails a month free, then Essential, Pro and Agency — every feature on every plan.
- [Agents](https://mailcheer.com/agents): Driving Mailcheer from Claude Code, Codex, Cursor, the command line or the MCP server.
- [Compare](https://mailcheer.com/compare): Mailcheer next to Resend, SendGrid, Mailgun, Postmark, Amazon SES, Mailchimp, Brevo, Beehiiv, ConvertKit, Substack and others.
- [SPF, DKIM and DMARC checker](https://mailcheer.com/tools/spf-dkim-dmarc-checker): A free public tool: reads a domain's records and says what to fix.
- [AI newsletter generator](https://mailcheer.com/tools/ai-newsletter-generator): A free public tool: paste a page of your website, the assistant writes a first newsletter from what it says.
- [Guides](https://mailcheer.com/guides): SMTP ports and error codes, SPF/DKIM/DMARC setup, bulk sender rules, deliverability.
- [Glossary](https://mailcheer.com/glossary): Short definitions of email terms: open rate, bounce, double opt-in, suppression list.
- [About](https://mailcheer.com/about): What Mailcheer is and the principles behind it.

## Optional

- [Legal notice](https://mailcheer.com/legal-notice)
- [Privacy](https://mailcheer.com/privacy)
- [Terms of sale](https://mailcheer.com/terms)
- [Anti-abuse policy](https://mailcheer.com/anti-abuse-policy)