A faster, leaner email client and fork of Nylas Mail
Free and Open Source Invoicing, Expenses & Time-Tracking
Open source email service with a strong focus on security and privacy
Catches mail and serves it through a dream
Take back control of your email with this mail server in a box
Daemon to ban hosts that cause multiple authentication errors
Prometheus Alertmanager
Unofficial ProtonMail Desktop App
Open Source Email App for Android
PHP SDK for Apple Wallet and Google Pay Membership, Loyalty, etc.
Everything you need to build and deploy scalable realtime 3D apps
Immutable database and Datalog query engine for Clojure, ClojureScript
Mail hosting made simple
Python client for FCM - Firebase Cloud Messaging
Lightweight Open Source webmail written in PHP and JavaScript
An isomorphic Javascript library for GoTrue
Juice inlines CSS stylesheets into your HTML source
a Disqus alternative
Firebase Admin Node.js SDK
Instant messaging platform
A glossy Matrix collaboration client for the web
Matrix reference homeserver
VICIdial Contact Center Suite
Anti-Spam SMTP Proxy Server implements multiple spam filters
IP notification and information of your remote computer by email