Repository Index

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

• email-marketing
• newsletter
• newsletter-management
• mailing-list

TranslatedThe official Lark/飞书 (Feishu) CLI tool, maintained by the larksuite team — built for humans and AI Agents. Covers core business domains including Messenger, Docs, Base, Sheets, Calendar, Mail, Tasks, Meetings, and more, with 200+ commands and 20+ AI Agent Skills.

Web and API based SMTP testing

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

• email-marketing
• mail
• mailserver
• email

An email and SMTP testing tool with API for developers

• email-testing
• go
• golang
• smtp-server

✉️ Composable all-in-one mail server.

• imap
• smtp
• mail
• dkim

modern full-featured open source secure mail server for low-maintenance self-hosted email

Golang package that generates clean, responsive HTML e-mails for sending transactional mail

• golang
• hermes
• generator
• mailgen

Robust and flexible email library for Go

📥 An IMAP library for Go clients and servers

• imap
• client
• server
• mail

Open-source, self-hosted newsletter, email marketing and transactional email platform. Visual MJML editor, Liquid templating, 7 sending providers.

• mailing-list
• newsletter
• self-hosted
• amazon-ses

HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring

• monitoring
• troubleshooting
• voip
• rtc

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

• go
• smtp
• email
• verifier

Monitor your Website and APIs from your Computer. Get Notified through Slack, E-mail when your server is down or response time is more than expected.

• monitor
• slack
• notifications
• statusok

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

• golang
• smtp
• mail
• go

:mailbox_closed: Your own local SMS gateway in Go

The Official Twilio SendGrid Golang API Library

• go
• sendgrid
• golang
• email

Go library for the Mailgun API.

• go
• mailgun
• email

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

• go
• golang
• golang-package
• mail

Common packages for Go

• email
• random
• bytes
• color

✉️ A streaming Go library for the Internet Message Format and mail messages

• mail
• mime

Lightweight SMTP client written in Go

• smtp
• email
• golang
• http

Inline styling for html mail in golang

• premailer
• inline-styles
• golang
• email

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• smtp
• smtp-mock
• smtp-server
• smtp-mail