Open Source Email Software

Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.

Trojitá, a Qt IMAP e-mail client

MailTrackerBlocker is a macOS Mail plugin that prevents email tracking pixels from collecting user data. It enhances privacy by blocking hidden tracking mechanisms used by marketing emails.

ObjectivePGP is an open-source library for OpenPGP encryption, decryption, signing, and verification in Objective-C and Swift. It enables developers to add PGP-based security to iOS and macOS apps.

GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971

The all-in-one email backup tool that enables you to easily restore emails, create backups, convert, and view email archive files. -- Backup emails from virtually any email service provider that supports the IMAP/POP3 protocol, including popular providers such as Gmail, Yahoo Mail, Zoho Mail, Office 365, etc. -- Restore your email account from EML, PST, MSG, MBOX, and ZIP file formats. -- Export emails to EML format. -- Email to PDF: Save emails as PDFs, and download all attachments and raw files. -- Email Archive Converter: Convert PST and MBOX archive files to EML format. -- Email Archive Viewer: View email archive files and use advanced search options. -- Preserve all email properties such as To, Cc, Bcc, From, Subject, headers, attachments, links, and formatting. -- Maintain an accurate folder structure during backup or restore. -- Export emails with a custom date range and selected folders. -- Simple GUI, easy to use, and supports all major platforms: Windows, Mac, Linux

Gmail Notifier (restartless) is an open-source project that notify you about incoming emails from all your Google Mail accounts and labels. Features: 1. No requirement to enter your credentials. 2. Multiple account support 3. Multiple label support 4. Low bandwidth usage by using RSS technology 5. Mark as read, report span, trash or archive massages right from toolbar

Email Anonimizer

An email program to run on micromachines such as pdas'. Java enabled machines are the target audience for this program. Connectivity using bluetooth and infra red using the pda subsystem is also intended .

Free Java Office suite on the Web.

The Sino Project is an Open Source initiative that utilized code developed by the Chinese government. Sino Linux Middleware v3.0 and Mobile Business Application Suites are built and tested in conjunction with the OSDL in a high volume, enterprise read

Thexyz Cloud Drive application allows you to synchronize files on your desktop with your cloud storage space. This gives you instant access to the most recent versions of important files from anywhere and from any device. Need to edit that important document, but don’t have access to your desktop computer? With the editors included in Cloud Drive, you can create, access, and edit documents and spreadsheets right from your browser.

mail2prowl is used to operate the free service http://mail2prowl.de This script receives mails via POP3, reads a special formed recpeint adress and sends the mail to the Prowl webservice. Prowl is a push enabled iPhone Application with a nice API.

A Free form-data to Email platform. Anyone can fetch form data to their mail box without having to write server side code!