Choose Lettermint if you need
- Integration with Laravel, WordPress or Make. We haven't found them on Postmark's website.
- ISO 27001 or SSO. We haven't found them on Postmark's website.
At a glance
- Both have a free plan.
- Postmark offers a free trial (length not stated). We haven't confirmed one for Lettermint.
- Lettermint's lowest paid plan is Starter at €10 per month, as of October 28, 2026.
- Postmark's lowest paid plan is Basic at $15.00 per month for 10,000 emails, as of October 20, 2026.
- Both work with Zapier and Stripe.
- Both list GDPR.
- Only Lettermint lists ISO 27001 and SSO.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Postmark if you need
- Integration with Supabase, Slack or Datadog. We haven't found them on Lettermint's website.
Lettermint
Nobody has reviewed Lettermint yet. Its rating shows once it has 3 reviews.
Review Lettermint
Postmark
Nobody has reviewed Postmark yet. Its rating shows once it has 3 reviews.
Review PostmarkThe facts
- What it does
- LettermintA European transactional email service running on its own infrastructure, exclusively in the EU.
- PostmarkThe email delivery service that people actually like
- Free plan
- LettermintYes
- PostmarkYes
- Pricing
- LettermintMonthly tiers by email volume
- PostmarkNot confirmed
- Paid plans from
What they share
From the platforms and integrations each website lists.
Integrations
Both
- Zapier
- Stripe
Only Lettermint
- Laravel
- WordPress
- Make
- Symfony
Only Postmark
- Supabase
- Slack
- Datadog
- Netlify
- Figma
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Lettermint and Postmark yet.
Used either of them?
Your review makes this comparison better for the next person. Review Lettermint or review Postmark.