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.
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
#08 →
Best transactional email APIs
Clean modern API and visual builder. Smaller ecosystem than the giants.
#03 →
Best developer experience
Modern API, clean dashboard, drag-and-drop plus code.
#08 →
Best permanent free tiers
3,000/mo permanent.
#03 →
Best for multi-tenant and agency email
Modern API and sub-account story for teams that want developer and client-facing surfaces together.
#11 →
Best Mailchimp and Mandrill alternatives
Better Mandrill-style fit for teams that want transactional API plus visual templates.