Paperboy alternatives for AI agents.

Notifuse is an open-source & modern emailing platform

MJML: the only framework that makes responsive-email easy

:white_check_mark: A Go library for email verification without sending any emails.

BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr

The Official Twilio SendGrid Golang API Library

Go library for the Mailgun API.

✉️ Composable all-in-one mail server.

A dead simple Go library for sending notifications to various messaging services.

Common packages for Go

📧 Easy to use, yet comprehensive library for sending mails with Go

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

💌 Build and send emails using React

A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail

Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

✉️ Send e-mails with Node.JS – easy as cake!