Lettermint vs Postmark

Lettermint is a Dutch email delivery service built around transactional email, newsletters, and inbound processing, with every server hosted inside Europe. It positions itself as the EU partner for SaaS apps, e-commerce platforms, and product teams that need emails to arrive reliably without routing customer data through US providers.

The platform handles password resets, receipts, and notifications through a modern API and SMTP relay, adds broadcast campaigns for newsletters, and supports inbound email parsing for automated workflows. Multiple domains can be managed from a single account, with deliverability tooling, suppression lists, and detailed event logs.

Key benefits:

• Transactional email reliable delivery for critical product emails
• Broadcast campaigns newsletters and marketing sends from the same API
• Inbound processing parse replies and incoming mail into webhooks
• SMTP and API modern REST API alongside plain SMTP relay
• Multi-domain manage many sending domains in one account

Lettermint is operated from the Netherlands, and its sending infrastructure runs entirely within European datacenters. The service is GDPR-compliant, with a trust centre and data processing agreement covering EU regulatory obligations, making it a natural fit for European SaaS companies that need to keep customer email data out of US jurisdiction.

With a generous free tier of 300 emails per month and paid plans starting at €10 for 10,000 emails, Lettermint gives EU developers a privacy-respecting alternative to Postmark, SendGrid, and Mailgun without sacrificing modern tooling or pricing transparency.