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Ranked on the record · 31 apps

Best Email APIs 2026

Every product here is ranked by Samsung Mobile US Press's record score: what its maker publishes about it, where it runs (Android first), whether it is free to try, and how recently the facts were read.

01

turboSMTP

by turboSMTP

It may suit website and app operators who need transactional email, as well as teams sending newsletters or marketing campaigns.

Free plan Free trial From €14.95 a month AndroidiPhone & iPadWebWindowsMacLinux+1
02

MailerSend

MailerSend suits teams that need transactional email tools and integrations with listed services.

iPhone & iPadWebAPI
Record5.7 Visit
03

Postmark

Postmark suits developers and teams that need to send and track transactional or broadcast application email.

WebAPI
Record5.5 Visit
04

CloudMailin

It suits developers who need inbound email delivered to an application webhook, or transactional email sent through an API or SMTP relay.

WebAPI
Record5.4 Visit
05

Twilio SendGrid

SendGrid suits developers and organizations sending transactional or marketing email through APIs or SMTP.

API
Record5.3 Visit
6
Maileroo

Maileroo is aimed at developers and scaling businesses, including startups, agencies, and enterprises.

WebAPI $10 a month Record5.2 Visit
7 WebAPI $9 a month Record5.2 Visit
8 WebAPI $15 a month Record5.2 Visit
9 WebAPI $20 a month Record5.2 Visit
10
SMTP2GO

SMTP2GO suits senders needing SMTP relay or API delivery, reporting, webhook events, and integrations.

WebAPI $100 a year Record5.2 Visit
11 WebAPISelf-hosted $10 a month Record5.1 Visit
12
Plunk

Plunk suits developers, marketers, and teams sharing email templates.

WebAPISelf-hosted Free plan Record5.1 Visit
13 WebAPI $20 a month Record5.1 Visit
14 WebAPISelf-hosted €30 a month Record5.0 Visit
15 WebAPI $10 usage-based Record5.0 Visit
16 WebAPI $49 a month, billed yearly Record4.8 Visit
17 WebWindowsMac+3 $1,450 a year Record4.7 Visit
18 WebAPI $20 a month, billed yearly Record4.7 Visit
19 API Free plan Record4.6 Visit
20 WebAPISelf-hosted $10 a month Record4.6 Visit
21 Web $29 a month Record4.5 Visit
22 WebAPISelf-hosted Free plan Record4.5 Visit
23
Posta

Posta suits teams wanting self-hosted email delivery, inbound mail, templates, and webhooks.

WebAPISelf-hosted Free plan Record4.5 Visit
24 WebAPISelf-hosted $39.95 a month Record4.5 Visit
25 WebAPI — Record4.0 Visit