Showing 2990 open source projects for "project-open"

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    Demo Series - Small Business Backup By Veeam

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  • 1
    theHarvester

    theHarvester

    E-mails, subdomains and names

    theHarvester is a very simple to use, yet powerful and effective tool designed to be used in the early stages of a penetration test or red team engagement. Use it for open source intelligence (OSINT) gathering to help determine a company's external threat landscape on the internet. The tool gathers emails, names, subdomains, IPs and URLs using multiple public data sources.
    Downloads: 33 This Week
    Last Update:
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  • 2
    Thunderbird for iOS

    Thunderbird for iOS

    Open Source Email App for iOS

    Thunderbird iOS is the official iPhone and iPad email client offering from the Thunderbird project, bringing the capabilities of a feature-rich, open-source email experience to iOS devices with native UI and Apple platform integrations. The app gives users a powerful tool for managing multiple email accounts, including IMAP and POP3 configurations, and supports modern authentication flows like OAuth for popular providers. Designed with mobile usability in mind, it includes familiar gestures, thread views, swipe actions, attachment previews, and integrated search so users can stay productive on the go. ...
    Downloads: 32 This Week
    Last Update:
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  • 3
    Mailspring

    Mailspring

    A faster, leaner email client and fork of Nylas Mail

    Mailspring is a fast and lean mail client that’s a new version of Nylas Mail. It’s maintained by one of Nylas Mail’s original authors, with plenty of great features and enhancements such as a new C++ sync engine that allows it to use 50% less RAM. Heavy dependencies have also been removed and the package manager rewritten for even greater speed. Written in TypeScript with Electron and React, it is cross-platform (macOS, Windows and Linux) and designed to be easy to extend.
    Downloads: 185 This Week
    Last Update:
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  • 4
    Proton Mail for Android

    Proton Mail for Android

    Proton Mail Android app

    ...Because ProtonMail’s service never sees unencrypted content, the Android client performs necessary encryption and decryption on the device, aligning with Proton’s privacy-first philosophy and open-source security model.
    Downloads: 13 This Week
    Last Update:
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    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

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  • 5
    PHPMailer

    PHPMailer

    The classic email sending library for PHP

    PHPMailer – A full-featured email creation and transfer class for PHP. Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings. SMTP authentication with LOGIN, PLAIN, CRAM-MD5, and XOAUTH2 mechanisms over SMTPS and SMTP+STARTTLS transports. Validates email addresses automatically. Many PHP developers need to send email from their code. The only PHP function that supports this directly is mail(). However, it does not provide any assistance for making use of popular...
    Downloads: 124 This Week
    Last Update:
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  • 6
    Proton Mail Bridge

    Proton Mail Bridge

    Proton Mail Bridge application

    Proton Mail Bridge is a desktop application that runs in the background on Windows, macOS, and Linux to enable users to access their Proton Mail encrypted email accounts with traditional email clients like Outlook, Thunderbird, Apple Mail, and others via local IMAP/SMTP servers. Because standard IMAP cannot natively decrypt end-to-end encrypted messages, Bridge acts as a translator that downloads encrypted mail, decrypts it locally, and serves it to your preferred mail client over a local...
    Downloads: 10 This Week
    Last Update:
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  • 7
    msgvault

    msgvault

    Archive a lifetime of email and chat. Offline search, analytics

    msgvault is a message archiving tool for email and chat history, built for offline search, analytics, and AI-assisted querying. It lets users preserve large volumes of personal or organizational messages in a local archive. The project uses DuckDB to support fast aggregate queries across hundreds of thousands of messages. It includes a terminal interface, command-line tools, and an MCP server for connecting archived messages to AI assistants. Users can search, analyze, and read their message history conversationally through compatible AI clients. It also supports scheduled syncs, remote server mode, multi-account setups, and configuration options for personal Gmail or Google Workspace environments.
    Downloads: 4 This Week
    Last Update:
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  • 8
    Google Apps Manager

    Google Apps Manager

    Command line management for Google G Suite

    Google Apps Manager or GAM is a free and open source command line tool for Google G Suite Administrators that allows them to manage many aspects of their Google Apps Account quickly and easily. With GAM you can create and manage users, groups and domains; manage email, security and calendar settings; manage admins and organizations and many more. To use GAM Google Apps Business, Education, Partner or Government Edition is required.
    Downloads: 9 This Week
    Last Update:
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  • 9
    reg-factory

    reg-factory

    Google Mail registration

    ...Because the project touches sensitive account-creation workflows, it should only be used in authorized, compliant, and non-abusive testing environments.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Tutanota

    Tutanota

    Open source email service with a strong focus on security and privacy

    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.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Rspamd

    Rspamd

    Rapid spam filtering system

    Rspamd is an advanced spam filtering system and email processing framework that allows evaluation of messages by a number of rules including regular expressions, statistical analysis and custom services such as URL black lists. Each message is analysed by Rspamd and given a verdict that might be used by MTA for further processing (e.g. to reject a message, or add a special header indicating spam) along with other information, such as possible DKIM signature or modifications suggested for a...
    Downloads: 0 This Week
    Last Update:
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  • 12
    Thunderbird for Android

    Thunderbird for Android

    Open Source Email App for Android (fka K-9 Mail)

    Thunderbird Android is the mobile counterpart of the popular Thunderbird email client, reimagined for Android phones and tablets so users can access, send, and organize email from multiple accounts with advanced features found in desktop clients. It embraces modern mobile UI design while supporting robust email protocols (IMAP/POP3) and standards like OAuth for secure logins to services such as Gmail, Outlook, or custom mail providers. The app is built to handle complex mailbox structures,...
    Downloads: 3 This Week
    Last Update:
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  • 13
    ElectronMail

    ElectronMail

    Unofficial ProtonMail Desktop App

    ElectronMail is an Electron-based unofficial desktop client for ProtonMail. The app aims to provide enhanced desktop user experience enabling features that are not supported by the official in-browser web clients. It is written in TypeScript and uses Angular. The way of verifying that the installation packages attached to the releases have been assembled from the source code is being provided. The app works on Linux/OSX/Windows platforms. Binary installation packages. Offline access to the...
    Downloads: 3 This Week
    Last Update:
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  • 14
    listmonk

    listmonk

    High performance, self-hosted, newsletter and mailing list manager

    Performance and features packed into a single binary. Manage millions of subscribers across many single and double opt-in lists with custom JSON attributes for each subscriber. Query and segment subscribers with SQL expressions. Use the super fast bulk importer (10k records per second) or use HTTP/JSON APIs or interact with the simple table schema to integrate external CRMs and subscriber databases. Visualize and compare campaign performance. Connect external visualization programs to the...
    Downloads: 3 This Week
    Last Update:
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  • 15
    K-9 Mail

    K-9 Mail

    Open Source Email App for Android

    K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. It's designed to be easy to use by both novice and power users, with plenty of useful features. It has IMAP push email support, support for multiple accounts, support for POP3 and Exchange 2003/2007 (with WebDAV), flagging, filing, signatures and more!
    Downloads: 2 This Week
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  • 16
    Qpsmtpd

    Qpsmtpd

    qpsmtpd is a flexible smtpd daemon written in Perl

    qpsmtpd is a flexible SMTP daemon written in Perl, designed to be easily extensible through a plugin architecture. It serves as a drop-in replacement for qmail-smtpd and supports integration with various mail transfer agents, providing advanced spam filtering and email processing capabilities.
    Downloads: 2 This Week
    Last Update:
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  • 17
    peco

    peco

    Simplistic interactive filtering tool

    peco (pronounced peh-koh) is based on a python tool, percol. percol was darn useful, but I wanted a tool that was a single binary, and forget about python. peco is written in Go, and therefore you can just grab the binary releases and drop it in your $PATH. peco can be a great tool to filter stuff like logs, process stats, find files, because unlike grep, you can type as you think and look through the current results. Demos speak more than a thousand words! Here's me looking for a process on...
    Downloads: 3 This Week
    Last Update:
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  • 18
    react-email

    react-email

    Build and send emails using React

    react-email is a modern library for building responsive email templates using React components, bringing familiar frontend development practices into email design. It allows developers to create emails using reusable components, making it easier to maintain consistency across different templates and campaigns. The library supports rendering to HTML that is compatible with major email clients, addressing common challenges such as inconsistent styling and layout issues. It integrates...
    Downloads: 2 This Week
    Last Update:
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  • 19
    Laravel Mail Preview

    Laravel Mail Preview

    A mail driver to quickly preview mail

    This package can display a small overlay whenever a mail is sent. The overlay contains a link to the mail that was just sent.
    Downloads: 1 This Week
    Last Update:
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  • 20
    Notifuse

    Notifuse

    Notifuse is an open-source & modern emailing platform

    Notifuse is an open-source, modern, self-hosted emailing and communications platform designed to replace proprietary services like Mailchimp, Brevo, and Klaviyo with a self-managed solution. It’s built with a Go backend and a React frontend to offer both developer-friendly APIs and a user-centric visual interface with enterprise-grade capabilities such as campaign creation, subscriber segmentation, and detailed analytics.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Laravel Mailbox

    Laravel Mailbox

    Catch incoming emails in your Laravel application

    Catch incoming emails in your Laravel application. Laravel Mailbox is a package for Laravel 5.7 and up that will allow your application to catch and react to incoming emails from different services like Mailgun, SendGrid, or the local log driver for debugging purposes. Listen to incoming email messages in a Laravel-Route-like fashion and react to them.
    Downloads: 1 This Week
    Last Update:
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  • 22
    Addy

    Addy

    Anonymous email forwarding

    Addy is an open-source anonymous email forwarding service designed to protect users’ real email addresses from exposure, spam, and tracking by letting them create and manage unlimited email aliases that forward to their primary inbox. Instead of giving out their real email address when signing up for services, users can create descriptive or random alias addresses that disguise their identity and keep their inbox clean by deactivating or deleting any alias that starts receiving unwanted emails. ...
    Downloads: 1 This Week
    Last Update:
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  • 23
    Proton Mail for iOS

    Proton Mail for iOS

    Secure email that protects your privacy

    Proton Mail for iOS is the official iPhone and iPad client that brings Proton’s secure, end-to-end encrypted email service to Apple’s mobile ecosystem, combining strong privacy protections with native performance and gestures. The app allows users to sign in to one or multiple Proton Mail accounts, read and compose encrypted messages, schedule emails, protect emails with passwords, set expiration timers, and organize mail with labels and folders inside a smooth, intuitive iOS interface. It...
    Downloads: 1 This Week
    Last Update:
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  • 24
    Proton Web Clients

    Proton Web Clients

    Monorepo hosting the proton web clients

    Proton Web Clients is a monorepo hosting the web applications for Proton’s suite of privacy-focused services, including the core Proton Mail webmail interface and related web apps like Proton Calendar, Proton Drive, Proton Account, Proton VPN, Proton Pass, and other connected tools. It consolidates all web client code, shared modules, dependencies, and development tooling into a single repository, enabling unified maintenance, consistency of design patterns, and efficient evolution of...
    Downloads: 1 This Week
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  • 25
    Beautymail for Laravel

    Beautymail for Laravel

    Send beautiful HTML emails with Laravel

    Beautymail makes it super easy to send beautiful responsive HTML emails. Send beautiful HTML emails with Laravel.
    Downloads: 0 This Week
    Last Update:
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