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Sidemail is an all-in-one email delivery platform for startups that makes sending emails simple. It has everything for delivering and managing emails – email API, transactional emails, email marketing and automation, contact management, no-code email editor, email templates, subscribe forms, and more. Perfect for teams & developers that want reliable deliverability without the bloat. We're based in the EU and GDPR compliant. | A complete suite of deliverability tools & services makes it easy to get back in the inbox. |
Email API, Send transactional emails, Newsletters & Product updates, Email automation, Contact management, Subscribe forms, No-code email editor, Premade email templates, Markdown emails, Email MCP server, Own sending domain, DKIM, SPF, Email dark mode, Send emails with Node.js, Express.js, Next.js, PHP, Laravel, Symfony, Slim, Python, Django, Flask, FastAPI, Ruby, Ruby on Rails, WordPress | Email Management |
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Litmus is a testing service for web and marketing professionals. It allows people to cross-browser test their websites, and test their email newsletters across a range of email clients and spam filters.

mailparser.io is a web-based email processing software which allows you to pull any kind of data from incoming e-mails based on custom parsing rules. The parsed data can be sent to any API with webhooks.

Email on Acid is the most affordable, self-serve email testing platform in the world. We can help you maximize the success of your email marketing efforts by diagnosing and improving your renderability, deliverability, click-throughs and conversions.

We offer one platform that covers all email-related needs in one place: testing, sending, and in-depth tracking to control how email infrastructure works and performs.

A full-featured email creation and transfer class for PHP. It is a class library for PHP that provides a collection of functions to build and send email messages. PHPMailer supports several ways of sending email: mail() , Sendmail, qmail & direct to SMTP servers.

Disposable email and fake email capture for QA and development teams

Mailinator is a disposable email service that allows QA departments to test with 1000's of inboxes.

Is an AI-driven multichannel outreach platform that reaches prospects where they're most active while keeping every message personal, timely, and effective.

Free email checker and email verification with 99.9% accuracy. Reduce bounces, protect sender reputation. 100 free email verification credits daily.

Multichannel messaging SaaS to manage SMS, Email and RCS from a single interface. Supports transactional and marketing messaging, automation workflows, OTP authentication and API-based integrations.