A free & open modern, fast email client with user-friendly encryption and privacy features

Email helpdesk built using Ruby on Rails and Zurb Foundation

Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and soon EWS

Delta Chat Rust Core library, used by Android/iOS/desktop apps, bindings and bots 📧

Library to send e-mails over different transports and protocols (like SMTP and IMAP) using immutable messages and streams. Also includes SMTP server.

mnm implements TMTP protocol. Let Internet sites message members directly, instead of unreliable, insecure email. Contributors welcome! (Server)

Collection of resources related to phishing

Mail4Delphi uses the Indy component to send the email.

A open source tool for collating publically available contact information for businesses.

mnm implements TMTP protocol. Let Internet sites message members directly, instead of unreliable, insecure email. Contributors welcome! (Client)

Filter gmail with AI

Use grepaddr to extract (grep) all kinds of addresses from stdin like URLs (incl. IPv4/IPv6), IP addresses & ranges (IPv4/IPv6), e-mail addresses, MAC addresses.

E-mail builder library for Rust

A small collection of bookmarklets that are useful for OSINT, including ones for e-mail addresses, Facebook, extracting links and WhatsMyName.app.

Create MIME messages with PHP

Membership system written in PHP, includes registration form, login form.

Matrix <--> E-mail Bridge

A java command line tool to convert Outlook OST/PST files to MBOX or EML.

& images

Elyzer is an email header analyzer, written in python, capable of detecting potential spoofing attempts.