European alternatives to Resend for transactional email in 2026

If you want a developer-first email API from a European company, Lettermint is a close match for Resend: it's made in the Netherlands by Lettermint B.V., keeps email data in the EU and gives you an API, SMTP, an MCP server and a CLI. Scaleway Transactional Email suits teams already on Scaleway, Sweego is a French option with datacenters in France, and Brevo and Mailjet fit when the same tool also has to send newsletters.

Resend can send from Ireland, yet its regions doc says email metadata, logs and API records are stored in the United States whichever region you pick. Moving the sending region isn't the same as moving the provider.

Transactional email providers at a glance

Prices are from each provider's own page, checked on 10 November 2026.

What to check before you switch

• Who signs the contract. Read the company name in the terms. Resend's terms are with Plus Five Five, Inc., and Brevo has a separate US entity for customers in North America. If you need an EU business, the legal name is what counts, as EU region vs EU company explains.
• Where message content and logs live. An email carries the recipient's address and often an order, an invoice or a sign-in link. Ask where logs and message history are stored, and for how long.
• The subprocessor list. A European sender can still run on a US cloud. Mailjet, for example, names Google Cloud as the host of its data.
• What happens past your quota. Some plans bill extra emails, some pause sending at a cap you set. Pick the one you can live with when a signup spike hits.
• How your app sends. If your code runs in an isolate runtime without TCP, SMTP is out and you need an HTTPS API.
• Marketing next to transactional. If you'll also send newsletters, check that the plan allows it and keeps the two on separate IPs.

1. Lettermint

Behind Lettermint is Lettermint B.V., and the product is made in the Netherlands. Its homepage promises that email data is handled and kept inside the EU on hardware it runs itself, and that no US parent company sits above it. It's certified to ISO/IEC 27001:2022, and its data processing agreement under Article 28 GDPR applies to every customer automatically.

For a Resend user, the developer surface will feel familiar: a REST API, SMTP relay, SDKs, batch sending of up to 500 emails per request, webhooks, a sandbox mode, a CLI and an MCP server for AI agents. It also handles inbound email and newsletters, on separate IP pools from transactional mail.

• Best for: SaaS teams that want a Resend-style API with an EU company and EU data.
• Price: Free for 300 emails a month with one domain. Starter is €10 a month for 10,000 emails, with extra emails at €1.50 per 1,000. Growth is €13 and Pro €15 a month at the same volume, with more domains. You can set a monthly spend cap that pauses sending instead of billing overage.
• What it lacks: longer history. Every plan keeps messages for 28 days, and a dedicated IP costs €50 a month and needs Pro at 300,000 emails a month or more.

2. Scaleway Transactional Email

Scaleway is a French cloud provider, and Transactional Email is its managed service for mail your app triggers, such as account creation, password changes and order or payment updates. You send through the API or SMTP, verify your domain with SPF and DKIM records, and follow messages in the Scaleway console. The service runs only in Scaleway's Paris region. The Scale plan adds a dedicated IP with both an IPv4 and an IPv6 address, more tracking and advanced webhook management.

• Best for: teams whose apps already run on Scaleway and want email on the same bill and console.
• Price: 300 emails a month free, then you're billed at the end of the month for what you sent. See Scaleway's pricing page for the rate per email.
• What it lacks: marketing email. The service is for transactional messages only, so newsletters need another tool. New accounts start with a default quota of 10,000 emails a month, raised by support case by case, and an email sent through the API can be at most 2 MB with attachments.

3. Sweego

Sweego sells email and SMS sending to developers, and its site describes it as French, with both the company and its datacenters in France. Its parent company is Mindbaz, a French email sender it credits with its deliverability know-how. You get a REST API and SMTP, automatic SPF, DKIM and DMARC setup, templates, a test mode and webhooks.

• Best for: French and European teams that want email and SMS from one provider.
• Price: Free for 100 emails a day by API and SMTP, with unlimited domains. Individual is €10 a month excl. tax for 20,000 emails, or €8 a month on yearly billing. Startup is €79 and Scaleup €270 a month excl. tax. SMS credits are bought separately, at about €0.04 per message to France.
• What it lacks: inbound email routing on the Free plan, and log retention there is 7 days.

4. Brevo

Brevo is a French company registered in Paris. It's mainly a marketing platform, with campaigns, automation, a CRM and SMS, and it also sends transactional email, SMS and WhatsApp messages through an SMTP relay and an API.

• Best for: teams that want newsletters, automation and transactional email in one account.
• Price: free forever with no card. After Brevo approves the account for sending, the cap is 300 emails a day. Paid plans scale with email volume, starting at 5,000 emails a month on Starter.
• What it lacks: the narrow focus of an email API. Most of the product is marketing tooling, and customers in the US, Canada or Mexico contract with Brevo's US company instead.

5. Mailjet

Mailjet, branded as Sinch Mailjet, sends both marketing and transactional email. Its security page says data is stored with Google Cloud Platform in Frankfurt, Germany, and Saint-Ghislain, Belgium. That keeps data in Europe, but on a US cloud.

• Best for: small senders who want a generous free allowance and don't mind a US cloud underneath.
• Price: Free for 6,000 emails a month, capped at 200 a day. Starter is $9 a month for 8,000 emails and Essential $19 for 15,000, excl. VAT. The page can also show prices in euros or pounds.
• What it lacks: a statement on the pricing or security page of which company you sign with.

Where Eurobase fits

Eurobase hosts your app, not your app's email, so any of the services above sits next to it. Apps on V8 isolates reach the outside world with fetch() over HTTPS or HTTP and can't open TCP connections, which rules out SMTP: call the provider's HTTPS API instead. Store the API key as a secret, as described in Getting started, and check the outbound limits on the Workers docs.

If a client wants every layer of a SaaS kept in the EU, SaaS hosting with EU data walks through app, database, email and the rest, and the GDPR hosting checklist lists the contracts and records to keep.

How to move off Resend

1. Sign up with the new provider and add your sending domain.
2. Add the SPF, DKIM and DMARC records it gives you and wait until the domain shows as verified.
3. Swap the API key and the send call in your code. Most providers take the same fields: from, to, subject, HTML and text.
4. Point delivery and bounce webhooks at your app and import your suppression list, so you don't mail addresses that already bounced.
5. Send password resets and sign-in links through the new provider first, watch delivery for a few days, then move the rest.

Frequently asked questions

Is Resend GDPR compliant if I choose the Ireland region?

The eu-west-1 region only changes where mail leaves from. Logs, email metadata and API records stay in the US. Whether that's acceptable depends on your data processing agreement and your client's requirements. If you need the provider itself to be European, pick one from this list.

Which European email API is most like Resend?

Lettermint's toolkit lines up well with Resend's: REST API, SMTP, SDKs, batch sending, webhooks, a CLI and an MCP server, with a free plan and monthly plans in euros.

Is there a free European transactional email service?

Yes. Lettermint and Scaleway each include 300 emails a month free, Sweego 100 a day and Brevo 300 a day once your account is approved. Mailjet's free plan allows 6,000 a month but stores data on Google Cloud.

Can I send email over SMTP from an app on V8 isolates?

No, not on Eurobase. Its isolate runtime has no outbound TCP connections, so you send through the provider's HTTPS API with fetch(). Every provider here offers one.

Sources

• Resend pricing, Resend regions and Resend terms
• Lettermint and Lettermint pricing
• Scaleway Transactional Email FAQ and capabilities and limits
• Sweego and Sweego pricing
• Brevo pricing and Brevo terms
• Mailjet pricing and Mailjet security and privacy
• Eurobase Workers docs, Getting started and Eurobase subprocessors