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Transactional founded 2020

MailerSend

Modern transactional API with a clean UI.

overview

MailerSend was built by the same team behind MailerLite, focused on transactional. Drag-and-drop templates plus a code-first API cover both designer and engineer flows. Pricing is competitive at small to mid volume.

for early-stage startups

At an early stage the deciding factors are what the free tier actually covers, what the first paid invoice looks like, and how much of a founding engineer's week the setup costs. Feature depth that only matters at a million sends a month is noise until it is not.

Against a waitlist, a launch announcement, onboarding email, and the first transactional sends, MailerSend covers developer experience, scheduling, SDK breadth, and webhook coverage, and does not cover operating track record. Whether that gap matters depends on how central those are to the build.

  • Free tier: 500/mo permanent
  • Best published rate per 1,000: Tiers not published in comparable form
  • Starts at: $7/mo for 5,000 emails
  • DX score: 8/10
  • Deliverability: Good and steadily improving; reputation managed via dedicated IP options on paid plans.
  • Operating since: 2020
  • Scheduling: Yes
  • SDKs: node, python, go, ruby, php
  • Webhooks: Yes
deliverability

Good and steadily improving; reputation managed via dedicated IP options on paid plans.

best for

Teams that want both API and visual template editing.

pros
  • Drag-and-drop templates plus API
  • Inbound routing supported
  • Sub-accounts for agencies
cons
  • Smaller SDK footprint than SendGrid
  • Brand and ecosystem less recognized than older providers

Features at a glance

API Yes
SMTP Yes
SDKs node, python, go, ruby, php
Webhooks Yes
Templates rich
React Email No
Batch send Yes
Scheduled send Yes
Suppressions Yes
Multi-tenant Yes
Inbound parsing Yes
Event stream Yes
Idempotency keys No
Dedicated IP Yes

Appears in rankings

Compared with