Prometheus : Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Prometheus's main features are:
a multi-dimensio...
Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
Mailtrain : Mailtrain is a self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). Mailtrain supports subscriber list management, ...
Kill the newsletter! : I love newsletters, but I hate receiving e-mails. Call me an oldie, but I still use RSS feeds to read my news and e-mails for communication. And I pre...
Novu : The open-source notifications infrastructure. A fully-featured microservice to send SMS, E-mail, Slack and Push notifications. Embeddable notification...
