CloudMailin Alternatives (January 2026)

Cloudmailin - Incoming email for web apps, receive email via HTTP Post in the Cloud - Cloudmailin

https://www.cloudmaili.com/

Incoming Email for your Web Application, send and receive email via HTTP Post in the Cloud

3.9/5

5+ reviews

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Lightning fast email delivery powered by AI | SMTP & Email API

https://mailaz

.com/

Integrate in minutes and send transactional emails via our REST API or SMTP. Scale with our reliable global infrastructure and deliver emails to your customer's inbox instantly.

Transactional Email API Service For Developers | Mailgun

https://www.mailgu

.com/

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

SendPost Transactional Email API & SMTP Relay

https://app.sendpos

.io/

Email API and SMTP relay to not just send and measure email sending, but also alert and optimise. We provide you with tools, expertise and support needed to reliably deliver emails to your customers inboxes on time, every time.

Mailtrap: Email Delivery Platform

https://mailtra

.io/

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

mailboxlayer API | Free, Powerful Email Validation API

https://mailboxlaye

.com/

Simple and powerful email verification JSON API using SMTP, typo checks, syntax validation, and free and disposable provider filtering. Free for personal use.

Test any email, SMS or user action with one API | Mailosaur

https://www.mailosau

.com/

Mailosaur removes the frustration of testing everything a user might do.  Test password resets, replies, two-factor logins, and more.

SMTP Email Relay Services - SMTP.com | SMTP.com

https://www.smt

.com/

SMTP email relay service that is powerful, secured and reliable. Send better transactional emails and integrate easily with our email API.

Free real-time email verification service | ValidEmail

https://validemai

.net/

Free real-time email verification service. Easy to use. Start using in 30 seconds

SMTPServer: Send Unlimited Emails | Email Delivery Service

https://smtpserve

.com/

Send bulk, transactional, & marketing emails with our easy-to-use and reliable SMTP. Check the quality of email and improve delivery. Get started for free!