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

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

holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information on sites with the forgotten password function.

  • information-gathering
  • osint
  • osint-tools
  • open-source-intelligence

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

Email Blueprints is a collection of HTML email templates that can serve as a solid foundation and starting point for the design of emails

CssToInlineStyles is a class that enables you to convert HTML-pages/files into HTML-pages/files with inline styles. This is very usefull when you're sending emails.

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

  • open-source
  • typescript
  • javascipt
  • customer-engagement

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

  • golang
  • hermes
  • generator
  • mailgen

Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.

Newsletters where you pay for the emails you send, not for dormant subscribers, at a fraction of the price of beehiiv and the like. Open source: self-host it, or use mailcheap.ai.