Switch to Lettr from
any provider
See how Lettr stacks up against the most popular transactional email providers. Better features, better pricing, and a migration path that takes minutes.
Move beyond basic email APIs. Resend offers a clean developer experience for sending emails, but Lettr goes further with built-in per-email analytics, a professional template builder, secure infrastructure, and proactive deliverability monitoring.
Everything Postmark does, and more. Postmark is known for reliable transactional email delivery, but Lettr combines that same reliability with a full-featured template builder, granular per-email analytics, and smart deliverability alerts — all in one platform.
A modern alternative to SendGrid. SendGrid has been around for years, but its complexity and legacy architecture show their age.
More than just an email API. Mailgun offers solid email infrastructure, but Lettr goes beyond API-only workflows with an integrated template builder, per-email analytics, and smart alerts — so you spend less time debugging and more time building.
Built for developers who care about email. MailerSend provides a developer-friendly email service, but Lettr offers deeper analytics at the individual email level, a more powerful template builder with AI assistance, and proactive deliverability monitoring built in from day one.
Ready to switch?
Migrating to Lettr takes less than 5 minutes. Swap out your mail driver, verify your domain, and you're live.