Transactional email is a solved problem. Unless you try to solve it in Europe.
I needed email for Spürhund—confirmation mails, password resets, the basics. Not newsletters, not marketing campaigns. The emails your product needs to function. The kind nobody notices until they stop working.
I went with the European choice first.
The European Choice
Mailjet. Based in Paris, part of the Swedish Sinch group. Marketed as the EU alternative to SendGrid and Postmark. 6,000 emails per month on the free tier. Sounds reasonable.
Domain configured. SPF green. DKIM green. Authentication complete. Ready to send.
Then Funkstille—radio silence.
Mailjet blocked my account before the first email left the server. No reason given. No error code. No human on the other side. The dashboard showed full green authentication and a banner saying sending was paused.
It gets better. Mailjet had auto-added a domain I never configured—sbreitzke.net—and flagged it as “not authenticated.” A domain I did not request, appearing in my account, creating a warning about a setup I never made. My actual domain? Green across the board. Still blocked.
No path forward. No explanation. No recourse.
Six Minutes
I switched to Resend. San Francisco. They offer an EU region—eu-west-1, Ireland.
- 15:31 — Account confirmed
- 15:33 — First test email received
- 15:37 — Domain verified, first real transactional email from Spürhund delivered
One-click Cloudflare domain detection. DNS records auto-configured. EU region selected automatically. From signup to production in six minutes.
No ticket. No waiting. No phantom domains. A product that does what it says.
The Landscape
The EU email options are thin.
| Provider | HQ | What Happened |
|---|---|---|
| Mailjet | Paris | Blocked before first send. Full auth, no explanation. |
| Brevo | Paris | 300/day free. Not tested—next on the list if Resend fails. |
| Postal | Open Source | Self-hosted. Free software, but deliverability is a full-time job. |
The US side is deeper: SendGrid, Postmark, SES, Resend. All with functional free tiers. All with onboarding that actually works.
Same pattern as every other layer in this stack. The EU components exist. The experience does not.
The Honest Part
Resend with eu-west-1 is not European sovereignty. It is a US company hosting in Ireland. The CLOUD Act applies regardless of which data center your emails leave from. Same as AWS eu-west-1 or Stripe’s Ireland entity.
This is the pragmatic middle ground. Better than US-region hosting. Not truly sovereign. The trade-off most European founders end up making—because the alternative involves getting blocked before your first send and debugging a phantom domain that appeared from nowhere.
The Bar Is Set
Six minutes from signup to the first real email in production. That is the benchmark.
Not because Resend invented something revolutionary. They removed the friction that others apparently consider acceptable. Auto-detect the DNS provider. Auto-configure the records. Get out of the way.
EU email providers: this is what you need to match. Not in features. Not in pricing. In the experience of going from nothing to a working product.
I want to build European. I started with the European option. I will switch the moment an EU provider offers the same path without the Funkstille.
If you know one—a transactional email provider based in the EU that gets you to production without blocking you first—I want to hear about it. Every recommendation shortens the path for the next founder.
Rohbau—the European software stack, layer by layer. This was the email chapter. The series starts at s16e.de/eu.