Alternatives to iRedMail

Mailcow: Dockerized is a self-hosted email and groupware solution built on Docker technology. It incorporates a variety of established and reliable components that work together to create a hassle-free email server experience. Each application is encapsulated within its own container, all linked through a bridged network for seamless interaction and functionality. This modular approach enhances the scalability and maintainability of the server setup.

hMailServer is a complimentary and open-source email server designed for the Microsoft Windows platform. It is utilized globally by various entities, including internet service providers, businesses, governmental organizations, educational institutions, and individual users with a passion for technology. The server accommodates standard email protocols such as IMAP, SMTP, and POP3, making it compatible with numerous existing webmail systems. Additionally, it features a customizable score-based spam protection system and can be integrated with virus scanners to ensure that all incoming and outgoing emails are thoroughly checked for threats. This versatility makes hMailServer a popular choice for those seeking a reliable email solution.

Take back your autonomy and safeguard your personal information by setting up your own email server, a process that can be completed in under 10 minutes! With Modoboa, you can establish your email server at no cost in less than 10 minutes. When it comes to establishing a mailbox, you typically have a few choices: - Rely on services provided by internet and infrastructure companies (like Orange, Vodafone, OVH, or Gandi), which often require a monthly or annual fee, but they come with limitations on customization, configuration options, and the number of domains and mailboxes you can use. - Opt for free email services (such as Gmail, Live, or Yahoo), which come with restrictions and often exploit your data for commercial gain. - Set up your own email server, although this usually demands a significant level of technical expertise for proper installation and configuration. Modoboa presents a viable alternative to these three options. It liberates you from the constraints of traditional email providers, allowing anyone to create a secure email server independently. Best of all, this entire process takes less than 10 minutes and is completely free of charge. Embrace the freedom of managing your own email with ease!

Provide your clients with reliable, enterprise-grade email hosting alongside a range of additional services. This outstanding option caters to service providers and is adaptable for a user base ranging from thousands to millions. Attract more clients by presenting a top-tier email server solution renowned for its flexibility, seamlessly integrating with your current systems. You can oversee your email, coordinate and share calendars, and synchronize your mobile devices, all supported by a robust and secure mail server. This solution is ideal for organizations of any scale. Axigen possesses extensive expertise; explore its diverse functionalities and select the ones that align with your needs. Effortlessly manage your emails while enhancing productivity with tools for calendars, tasks, and notes. Experience user-friendly browser functionality with features like keyboard shortcuts, drag-and-drop capabilities, real-time email viewing, frequently accessed folders, customizable email filters, vacation replies, and personal blacklist/whitelist options, ensuring a comprehensive email management experience. With such a versatile system, businesses can streamline their communication effectively.

Mail-in-a-Box allows you to establish your very own mail service provider with just a few straightforward steps, similar to creating a personalized version of Gmail that you have complete control over. Essentially, it transforms a new cloud computer into a fully functional mail server, and you don’t need to possess advanced technical skills to get it up and running. Each Mail-in-a-Box setup comes equipped with webmail access and an IMAP/SMTP server, making it compatible with both mobile devices and desktop email applications. Additionally, it offers synchronization for contacts and calendars, ensuring that all your information stays up to date across devices. Moreover, the system includes essential mail features such as spam protection through filtering and greylisting, customizable mail filter rules, automatic configuration for email clients, and scheduled backups to services like Amazon S3. Another advantage is its automatic DNS configuration, which simplifies the process when you allow it to function as your nameserver, enabling it to establish crucial DNS records that enhance mail deliverability and security, including SPF, DKIM, DMARC, and MTA-STS. Furthermore, when DNSSEC is activated along with DANE TLSA, it significantly elevates the level of security for your email communications.

Mailu is a versatile and straightforward mail server offered through a collection of Docker images, designed as free and open-source software that encourages user feedback and contributions. The objective of this project is to deliver an easy-to-install and maintain mail server that is comprehensive and avoids the inclusion of proprietary tools or unrelated features that are frequently part of mainstream groupware solutions. Key functionalities of Mailu encompass: A standard email server setup supporting IMAP and IMAP+, SMTP, and Submission with automated configuration profiles for various email clients. Sophisticated email capabilities, including aliases, domain aliases, and custom routing options. Web-based access featuring multiple webmail interfaces alongside an administrative dashboard. User-centric functionalities such as aliases, auto-reply, auto-forward, and the ability to fetch accounts from other servers. Administrative features that cater to global management, making announcements, domain-specific delegation, and setting quotas. Robust security measures that enforce TLS protocols, integrate DANE and MTA-STS, utilize Let's Encrypt for certificates, provide outgoing DKIM signatures, and incorporate an anti-virus scanner alongside Snuffleupagus for enhanced protection against malware and harmful attachments. Effective anti-spam tools that include auto-learning algorithms, greylisting techniques, DMARC and SPF support, and measures to prevent email spoofing. Overall, Mailu stands out as a comprehensive solution for users seeking a reliable and secure mail server environment.

The Courier mail transfer agent (MTA) serves as a comprehensive mail and groupware server that utilizes widely recognized protocols, including ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Within a unified framework, Courier delivers a range of services, such as ESMTP, IMAP, POP3, webmail, and mailing list functionalities, allowing users to easily enable or disable specific components as needed. Recently, the Courier mail server has introduced fundamental web-based calendaring and scheduling features within its webmail module, with plans for more sophisticated groupware calendaring capabilities to come shortly. Notably, the source code for the Courier mail server is designed to compile on most POSIX-compliant operating systems that utilize Linux or BSD-derived kernels, and it can also be successfully compiled on Solaris and AIX systems, provided users utilize the appropriate freeware add-on tools from Sun or IBM. The development of the Courier mail server is rooted in a combination of several interrelated projects that converged into its current form, and it also incorporates SMTP extensions specifically aimed at enhancing mailing list management functionality. In this way, Courier not only serves as a versatile mail server but also as a collaborative tool for users seeking effective communication solutions.

Setting up a fully operational mail server can be achieved in just a few minutes, primarily spent waiting for the necessary scripts to execute. The entire system is engineered with sensible defaults, allowing you to get started swiftly without needing in-depth knowledge of the internal workings or risking system integrity with potentially harmful choices. User information and configurations are meticulously separated from the executable files, with the user database maintained in an SQLite format, which is file-based. This structure ensures that Poste.io seamlessly integrates with external storage options, making tasks like migration, backups, and updates straightforward and predominantly involving file handling. Designed with a focus on security from its inception, Poste.io addresses the serious security challenges that have historically plagued the internet. Rather than compromising on compatibility with outdated email clients and vulnerable authentication processes, it prioritizes features that align with contemporary security standards, ensuring users can trust their communications. Additionally, this commitment to security reflects an awareness of the evolving landscape of cyber threats, making Poste.io a robust choice for reliable email management.

Muon offers a straightforward and enjoyable method for managing remote servers using SSH. This graphical SSH client includes an advanced SFTP file browser, an SSH terminal emulator, a remote resource and process manager, a server disk space analyzer, a remote text editor, a substantial remote log viewer, and numerous additional tools that facilitate remote server interactions. By functioning similarly to web-based control panels, Muon operates directly over SSH from a local machine, eliminating the need for any server-side installations. Compatible with both Linux and Windows, Muon has been verified with various Linux and UNIX servers, such as Ubuntu server, CentOS, RHEL, OpenSUSE, FreeBSD, OpenBSD, NetBSD, and HP-UX. Primarily aimed at web and backend developers who regularly deploy and debug their applications on remote servers while preferring to avoid complex command-line operations, this tool can also be beneficial for system administrators managing multiple remote servers. With its user-friendly interface and robust features, Muon enhances productivity by simplifying server management tasks.

James represents the Java Apache Mail Enterprise Server, featuring a modular structure that utilizes a comprehensive collection of contemporary and effective components. This architecture ultimately delivers fully-functional, stable, secure, and extendable mail servers that operate on the Java Virtual Machine (JVM). You can craft a tailored email management solution by selecting the necessary components, thanks to the Inversion of Control mail platform it offers. Additionally, you can enhance your email processing capabilities by customizing filtering and routing rules through the James Mailet Container. The Apache James project integrates various libraries that constitute James, ensuring that the services are readily available for download from Apache mirrors, making it easier for users to implement their email solutions. As a result, this flexibility allows for significant customization to meet diverse communication needs.

Experiencing downtime on your servers and websites is a common issue that can disrupt your operations. With Pinguzo, you can receive immediate notifications to help you take timely corrective action. Currently, over 800 users rely on Pinguzo to keep track of their server and website performance. You can join for free to assess your server's health, as well as monitor the uptime, availability, and overall performance of your websites. This service allows you to keep tabs on critical metrics such as uptime, load time, and average response times. By installing the Pinguzo agent, you gain access to comprehensive server data and visual graphs that represent your system's performance. We offer alerts through multiple channels, including e-mail, SMS, PagerDuty, Pushbullet, Slack, HipChat, and web-hooks, ensuring you stay informed in the way that suits you best. You can customize various parameters, such as receiving alerts if the load time exceeds a specified threshold for a certain duration, with notifications sent at regular intervals. Additionally, you can review in-depth uptime and downtime reports, complete with graphs that illustrate your response times. For servers, detailed insights into CPU, RAM, disk, and network usage are readily available. To ensure accuracy, we verify downtime from various locations, providing you with reliable data. Pinguzo has been successfully tested across a wide range of Linux distributions, including CentOS, Debian, Ubuntu, Fedora, Scientific Linux, RHEL, openSUSE, Slackware, Gentoo, and Archlinux, making it a versatile choice for monitoring needs. By choosing Pinguzo, you equip yourself with the tools necessary to maintain optimal server and website performance.

MailSite Fusion serves as a comprehensive email, calendar, and contact server for Windows, offering seamless over-the-air synchronization with various smartphones, full native Outlook integration, an advanced AJAX web client, and a server for sharing calendars and contacts, which can also sync and publish to multiple other clients. For three consecutive years, it has consistently ranked among the top three mail server products according to the readers of Windows IT Pro Magazine. Given the essential nature of email services to your organization, it is crucial to choose a reliable product from a company that has demonstrated expertise in communication software. So, what makes this mail server stand out? Rockliffe has dedicated itself to the development and enhancement of email server and security solutions for businesses and service providers since 1995, addressing your concerns with a sense of urgency. Engineered from the ground up to prioritize speed, stability, and security, MailSite Fusion is equipped to fulfill your most pressing needs and expectations effectively. Moreover, its robust features ensure that you can manage your communications seamlessly while maintaining a high level of security.

MailEnable offers a comprehensive solution for secure email and collaboration services, gaining recognition in a recent independent survey as the leading Windows Mail Server Platform globally. Whether you are a large hosting provider catering to numerous users or a small business managing a single domain, MailEnable delivers a solution that is sure to satisfy your email users. The Windows Mail Server software from MailEnable boasts features that rival those of Microsoft Exchange, including robust messaging protocols like Exchange ActiveSync, IMAP, SMTP, and POP3, along with collaborative tools such as calendaring (CalDAV), contacts (CardDAV), tasks, and notes. This extensive feature set ensures that users have access to everything they need for seamless communication and organization.

SmarterMail is the ideal Microsoft Exchange alternative. First, it's the only business email server on the market that offers native support for the protocols that power Exchange: MAPI, EWS, and EAS. It does this without the need for any additional software or plug-ins for Microsoft Outlook or other clients -- desktop and mobile! Best of all, it offers all of the features of Exchange, but at a FRACTION of the cost. In addition, features like audio and video group chat, and Online Meetings for team meetings and group collaboration are included at no extra charge. It's designed to provide the functionality businesses need, without sacrificing secure, reliable access to business, and personal, communication.

Horde stands out as the most adaptable groupware solution available, making it an ideal foundation for developing your business productivity applications. It boasts compatibility with a wider array of backends—including all major SQL, LDAP, IMAP, Sieve, SMTP, and caching platforms—than any other open-source groupware option currently on the market. As a result, you can seamlessly integrate your existing user base without requiring them to remember additional passwords. The extensive feature set of Horde is on par with the most prominent enterprise email systems, offering remarkable capabilities that hold up against competitors in our core applications, such as mail, calendar, and address book, as well as excelling in secondary applications like time tracking, wikis, and ticketing systems. Furthermore, this versatility ensures that users can tailor their experience to meet their unique needs, enhancing overall productivity and satisfaction.

SarvHost provides top-tier cloud virtual private server (VPS) hosting that utilizes high-performance NVMe SSD storage and includes robust DDoS protection along with a remarkable 99.99% uptime guarantee, enabling users to set up servers in key global locations such as Germany, France, the Netherlands, and the USA. Customers experience complete control through extensive root access, allowing them to select from various operating systems, database versions, and software packages that meet their specific requirements. With quick provisioning times—generally around one minute—servers can run a diverse array of OS options, including Ubuntu, Debian, CentOS, AlmaLinux, Rocky Linux, Fedora, and Windows Server, as well as support for custom ISO file uploads. The service prioritizes speed, reliability, and security through its redundant systems and integrated defenses against both volumetric and application-layer threats, coupled with enterprise-grade hardware across all hosting plans. Furthermore, users can easily scale their resources, manage backups efficiently, and depend on round-the-clock expert support for seamless deployment and ongoing maintenance. Additionally, SarvHost’s commitment to customer satisfaction ensures that clients receive prompt assistance and tailored solutions whenever needed.

Mail from external sources is collected by Mercury and deposited into the designated mailbox of the recipient, enabling the user to retrieve it whenever they wish. When local users wish to send messages to the outside, these messages are forwarded to Mercury, which manages the delivery process, alleviating the workload on the user's device and permitting them to focus on other tasks. With a dialup connection, only the mail server needs to have access to that link, meaning individual workstations do not require their own modems or Internet connections. This setup allows the mail server to continue managing email even if the client workstations are powered down, thereby supporting functionalities that require constant service availability, such as automatic replies and auto-forwarding. As a result, users enjoy a seamless experience without the need for constant vigilance over their email communications.

Easily connect Windows® clients to your domain with Zentyal, ensuring a seamless user experience without the need for user or device CALs. This solution incorporates reliable SMTP and POP3/IMAP mail servers, utilizing well-established technologies and protocols for optimal performance. It guarantees secure Internet access while effectively managing essential network infrastructure services. Users can benefit from software updates until the end-of-life date for each version, and support is readily available when needed. Zentyal serves as an intuitive alternative to Windows Server®, featuring native compatibility with Microsoft Active Directory® for straightforward management of Windows® clients. Furthermore, it allows for flexible deployment options, enabling Zentyal to function as a mail server, domain and directory server, or a comprehensive all-in-one server solution for your organization. This adaptability makes it an excellent choice for businesses looking to enhance their network management capabilities.

Dovecot Pro stands out as a comprehensive email solution that offers exceptional scalability, impressive performance, optimal hardware usage, and superior support for major telecommunications companies, internet service providers, and hosting services globally. Holding a dominant 76% share of the email backend market, Dovecot Pro is trusted by its customers for reliable performance and minimal downtime. Its efficient management of hardware resources, alongside innovative monitoring tools for statistics and administration, effectively lowers ownership costs while saving both time and maintenance expenses. Additionally, Dovecot Pro has the capacity to expand both vertically and horizontally, accommodating hundreds of servers, millions of users, and multiple physical locations. The architecture is stateless and native, allowing for maximum adaptability, as every significant component can be independently deployed on dedicated nodes. Moreover, Dovecot Pro excels in providing top-notch support for all essential email standards, ensuring seamless Mail Delivery Agent capability through LMTP and Sieve, while also facilitating mail retrieval for various clients via IMAP and POP3 protocols. This robust infrastructure underlines its commitment to meeting the diverse needs of its client base.

OpenSMTPD serves as a free implementation of the SMTP protocol for server-side email communication, as laid out in RFC 5321, and incorporates several additional standard extensions. This software enables standard machines to facilitate email exchanges with other systems that also utilize the SMTP protocol. Born from a desire for a more satisfactory alternative to existing solutions, OpenSMTPD offers a comprehensive SMTP implementation. The project is mainly driven by developers Gilles Chehade and Eric Faurot, alongside contributions from numerous OpenBSD developers and collaborators from various other communities. Its development reflects a commitment to improving email server functionality and reliability across different platforms.

We offer a digitally sovereign solution that enables you to manage your emails and calendars effectively, organize tasks, and maintain communication with team members through video conferences. Kopano Groupware serves as a robust email and calendaring platform, functioning similarly to Microsoft Outlook and Exchange. It supports installations for over 100,000 users, making it scalable for various organizational needs. This email and calendar server delivers essential communication and organizational information to users across all their devices while fostering collaboration among teams. Additionally, users can collaboratively edit documents within shared public folders or share content directly from their personal inboxes, enhancing teamwork and productivity.

Haraka is capable of managing thousands of simultaneous connections and can process an impressive volume of messages each second. Both Haraka and its plugins are developed using asynchronous JavaScript, resulting in exceptional speed and performance. With robust spam protection mechanisms available through its plugins, Haraka serves effectively as a filtering MTA. Additionally, it functions well as a Mail Submission Agent (MSA) on port 587 when utilizing authentication and DKIM signing plugins. Unlike traditional mail servers such as Exchange or Postfix, Haraka is not designed to act as a mail storage solution, Local Delivery Agent (LDA), or an IMAP server like Dovecot or Courier. Instead, it is typically combined with these systems for enhanced functionality. The built-in outbound mail delivery engine of Haraka is scalable, ensuring efficient processing of messages marked for relaying through authentication plugins, which are automatically queued for delivery. Furthermore, Haraka's plugin framework allows for easy extensions, making it a complementary option for traditional MTAs that may lack adequate filtering capabilities, thus enhancing the overall email handling process. This modular approach provides flexibility, enabling users to tailor their email solutions according to specific needs.

Your computer, tablet, and smartphone come equipped with applications and operating systems, so why should your server be any different? HPE is revolutionizing the small business server market by providing ClearOS in conjunction with their ProLiant servers. ClearOS is an accessible, open-source operating system featuring a user-friendly graphical web interface and an application marketplace that boasts over 100 applications, with new ones continuously being added. By utilizing open-source technology, you have the autonomy to select only the applications you need while paying solely for the desired apps and their support. HPE and ClearCenter are simplifying the process for small businesses, home offices, remote workers, and branch locations to have a fully operational server right out of the box, without incurring extra costs. The combination of HPE ProLiant servers and ClearOS ensures users enjoy a straightforward, cost-effective, and secure solution. Crafting the perfect IT setup tailored to your needs has never been more straightforward or accessible. With this innovative approach, small businesses can now focus on growth rather than infrastructure.

AlmaLinux OS is a free, community-driven enterprise Linux distribution that emphasizes long-term stability and serves as a reliable platform for production environments. It is designed to be fully compatible with RHEL® and pre-Stream CentOS, allowing users to transition seamlessly between systems. The source code and various tools necessary for building AlmaLinux OS can be accessed through our GitHub organization. Engage with a lively community on Reddit, where you can interact with fellow users, stay informed on the latest developments, and both offer and seek assistance. Participate in real-time discussions with other members, including the governance team and developers, to ask questions and share knowledge. As a fully independent operating system, AlmaLinux OS benefits from $1M in annual support from CloudLinux Inc, along with contributions from additional sponsors, ensuring ongoing development is driven by community involvement. This collaborative approach allows for a more resilient and adaptable OS that meets the needs of its users.

FreeBSD stands out with its sophisticated networking, exceptional performance, security, and compatibility elements that many other operating systems, including several top commercial options, still lack. It serves as a prime choice for both Internet and Intranet servers, delivering reliable network services even under extreme loads while efficiently managing memory to ensure excellent response times for numerous simultaneous user processes. Moreover, FreeBSD extends its advanced operating system capabilities to both appliance and embedded systems, accommodating a diverse range of hardware platforms such as higher-end Intel-based devices, as well as ARM, PowerPC, and MIPS architectures. Vendors globally depend on FreeBSD for their embedded products, which encompass everything from mail and web appliances to routers, time servers, and wireless access points, thanks to its integrated build and cross-build environments. Additionally, the Berkeley open-source license allows these vendors the flexibility to determine the extent of their contributions back to the community, fostering collaboration and innovation. This combination of features makes FreeBSD an invaluable asset for developers aiming to create high-performance embedded solutions.

Feh is a minimalist image viewer for X11, primarily designed for users who prefer console-based interactions. Instead of featuring a complex graphical interface, it straightforwardly presents images and allows for navigation through command line inputs and customizable key or mouse controls. Users can easily initiate a slideshow that cycles through all images in a specified directory, either manually with keyboard inputs or automatically at set intervals. Additionally, feh is widely available across various Linux and BSD distributions, such as Arch Linux, Debian, FreeBSD, OpenBSD, and Ubuntu, making it a popular choice among users who appreciate its simplicity. This accessibility across multiple platforms contributes to its reputation as a reliable tool for viewing images without unnecessary distractions.

Global secure email access is essential, as everyone deserves the ability to communicate in privacy. Flow serves as the most secure email solution that seamlessly integrates with a variety of traditional email clients. Our free, open-source mail client, Volcano, fully utilizes the Dark Internet Mail Environment for enhanced security. For those looking to host their own private email service, Magma is our open-source server tailored for the Dark Internet Mail Environment. We are trailblazers in the realm of encrypted email, advocating for the fundamental right to private and secure communication for all individuals. By implementing robust end-to-end encryption standards and innovative technologies, we are transforming the landscape of digital communication and safeguarding personal privacy on a global scale. Our commitment to this cause ensures that the future of communication remains secure and accessible for everyone.

Bigtop is a project under the Apache Foundation designed for Infrastructure Engineers and Data Scientists who need a thorough solution for packaging, testing, and configuring leading open source big data technologies. It encompasses a variety of components and projects, such as Hadoop, HBase, and Spark, among others. By packaging Hadoop RPMs and DEBs, Bigtop simplifies the management and maintenance of Hadoop clusters. Additionally, it offers an integrated smoke testing framework, complete with a collection of over 50 test files to ensure reliability. For those looking to deploy Hadoop from scratch, Bigtop provides vagrant recipes, raw images, and in-progress docker recipes. The framework is compatible with numerous Operating Systems, including Debian, Ubuntu, CentOS, Fedora, and openSUSE, among others. Moreover, Bigtop incorporates a comprehensive set of tools and a testing framework that evaluates various aspects, such as packaging, platform, and runtime, which are essential for both new deployments and upgrades of the entire data platform, rather than just isolated components. This makes Bigtop a vital resource for anyone aiming to streamline their big data infrastructure.

qmail serves as a robust, secure, and efficient message transfer agent that prioritizes simplicity. Its emphasis on security is not merely an aspiration but a fundamental necessity, given the critical nature of mail delivery for users, which must remain uninterrupted and entirely secure. With a philosophy that ensures a message, once accepted, is never lost, qmail adopts a straight-paper-path approach to guarantee reliability. Additionally, it offers optional support for maildir, a highly reliable mailbox format that prevents corruption during system crashes—unlike traditional mbox files and mh folders. This feature allows users to read their emails safely over NFS, with the added advantage that multiple NFS clients can deliver emails concurrently. Notably, qmail's design is considerably more compact than other Internet MTAs, which often rely on separate mechanisms for forwarding, aliasing, and mailing lists; instead, qmail streamlines this with a singular forwarding system that empowers users to manage their own mailing lists efficiently. Ultimately, qmail stands out not just for its performance but also for its innovative approach to email management.

MDaemon Email Server supports IMAP and SMTP protocols. It delivers solid performance thanks to its feature-rich, user-friendly design. The email server software is low in total cost of ownership (TCO), and is specifically designed to meet the needs small- to medium-sized businesses. MDaemon supports multiple languages, content filtering, and multiple domains. It also offers flexible administration and an open standard design.

The system analyzes all web traffic and can block specific websites through both HTTP and HTTPS using the Squid proxy. It is integrated with ClamAV antivirus and employs site blacklists for enhanced security. The setup features a multi-domain web server powered by a ready LAMP stack, allowing for the hosting of multiple domain names on a single server. Built on NextCloud, it offers universal access to your files via the web, personal computers, or mobile devices, ensuring you can access your information from anywhere. Additionally, it provides a private alternative to Slack through the Mattermost platform, which facilitates secure collaboration among teams. The modern web interface, built on Cockpit, streamlines common administrative tasks and boasts a quick and straightforward installation process. This infrastructure is based on CentOS/RHEL, a widely used server distribution known for its routine security updates and exceptional stability, making it a reliable choice for various applications. With this setup, users can benefit from both functional versatility and robust security measures.

Our comprehensive Unified Communications technology is anchored by the CommuniGate Pro platform. This system facilitates extensive Unified Communications through open APIs that allow seamless integration with various business applications. With the ability to scale to hundreds of millions of accounts, CommuniGate Pro is perfectly suited for large-scale alert systems, multimodal communications in web applications, or highly secure network architectures. Importantly, achieving such scale does not compromise efficiency or reliability; the platform is exceptionally agile and capable of supporting resilient applications in military and embedded environments. Furthermore, CommuniGate Pro has received approval for use by governmental agencies in both Europe and the USA. Its reputation for outstanding stability—boasting impressive uptimes akin to VMS—has made it a trusted choice among military, transportation, and research institutions. Additionally, the platform enables banks to efficiently manage email services for millions of clients while ensuring compliance with regulatory standards. The server's signaling capabilities can also be effectively implemented within a hybrid system, enhancing its versatility even further. This makes CommuniGate Pro a top-tier solution for organizations looking to optimize their communications infrastructure.

Pilvio is a simple, virtual cloud platform. Your files, apps, and websites can be hosted in the cloud. A platform that makes it easy to manage and create resources. We offer virtual machines with a wide variety of Operating Systems (Ubuntu and Centos, Windows, Fedora, OpenSuse or Rocky). We also offer 1-click installation of WordPress, Moodle and Docker, Nodejs. MikroTik. CyberPanel. Mailcoach. (S3) Object Storage resource basket creation and management. Our service comes with live support and a 99.9% uptime warranty.

Virtual Machine Manager offers many possibilities. Virtual Machine Manager allows you to set up multiple virtual machines, including Windows, Linux and Virtual DSM, on one Synology NAS. You can also test new software versions in a sandbox environment. This allows you to isolate customers' machines and increase flexibility for your server. Synology VMM allows you to create a cost-effective, easily managed virtualization environment. It combines computing, storage and networking resources on one hardware platform. Your Synology NAS can host multiple virtual machines with different operating systems, including Windows, Linux, or Virtual DSM. It offers a similar intuitive experience to DiskStation Manager and a reliable storage solution with robust capabilities.

K-9 Mail caters to both beginners and experienced users, providing a wide array of features suitable for everyone. It includes a customizable debug logging option that users can enable to assist in troubleshooting issues and errors. As an open-source project focused on privacy, we intentionally avoid implementing a continuous logging system that would send all device activity to a central server. Although such a feature could simplify problem resolution, it would involve significant server hosting costs and jeopardize user privacy. The significance of communication security continues to grow, and K-9 Mail is committed to delivering user-friendly email security in various ways, ensuring both secure access to email servers and the protection of the emails themselves. Ultimately, our priority is to empower users with tools that not only enhance functionality but also safeguard their information.

GNUPanel serves as a fully free alternative (under the GPL) for automating web hosting server management. Currently, its version is tailored for Debian systems, but a comprehensive code overhaul is anticipated in the coming months, promising numerous enhancements and modifications. This application is primarily developed in PHP 5 and is designed to operate on Debian GNU/Linux servers, supporting both 32-bit and 64-bit architectures. It features a conventional web interface that encompasses three distinct privilege levels: administrator, reseller, and user, all secured with SSL. Administrators possess the capabilities to establish both public and private hosting plans, process payments via Paypal, Digital Account, or DineroMail, communicate with users, utilize a built-in support ticket system, manage data transfer and disk space, and implement account suspension policies. Users benefit from standard functions such as creating email and FTP accounts, setting up databases, managing redirects, and securing directories. Moreover, the system's flexibility allows for tailored configurations, enhancing the overall user experience.

xCAT, or Extreme Cloud Administration Toolkit, is a versatile open-source solution aimed at streamlining the deployment, scaling, and oversight of both bare metal servers and virtual machines. It delivers extensive management functionalities tailored for environments such as high-performance computing clusters, render farms, grids, web farms, online gaming infrastructures, cloud setups, and data centers. Built on a foundation of established system administration practices, xCAT offers a flexible framework that allows system administrators to identify hardware servers, perform remote management tasks, deploy operating systems on physical or virtual machines in both disk and diskless configurations, set up and manage user applications, and execute parallel system management operations. This toolkit is compatible with a range of operating systems, including Red Hat, Ubuntu, SUSE, and CentOS, as well as architectures such as ppc64le, x86_64, and ppc64. Moreover, it supports various management protocols, including IPMI, HMC, FSP, and OpenBMC, which enable seamless remote console access. In addition to its core functionalities, xCAT's extensible nature allows for ongoing enhancements and adaptations to meet the evolving needs of modern IT infrastructures.

We are transforming the internet landscape by integrating cloud infrastructure, merging Virtual Private Servers (VPS) with web hosting services to deliver dedicated and scalable resources, enhanced security, isolation, and automation, all supported by exceptional reliability and a 99.99% uptime guarantee. Our Orbits offer a variety of specifications and operating system options, including popular Linux distributions such as CentOS, Ubuntu, Debian, and Fedora, along with Unix variants like Free BSD and Net BSD, allowing for extensive flexibility. Powered by Intel E-5 processors, our backend utilizes the KVM hypervisor and Openstack for optimal performance. The System On Grid Orbits function as Virtual Instances (Virtual Private Servers/Machines) managed by the KVM hypervisor. Each Orbit is equipped with multiple operating system flavors, providing users with choices that extend across various Linux distributions. Additionally, these Orbits capitalize on Intel CPUs' VTX features and hardware abstraction to ensure efficiency. Furthermore, we have optimized the Host kernel to deliver a powerful and resilient performance, which enhances the overall user experience. This innovation reflects our commitment to providing cutting-edge solutions in cloud computing.

Zmanda is a proven, reliable, high-performance enterprise backup and recovery solution. Zmanda provides a comprehensive solution at 50% less than the competition. You also get 24*7 support with a 2x higher NPS than the industry average. Since 2005, Zmanda has been trusted by enterprises, governments, and educational institutions worldwide. Zmanda enables you to back up to cloud, NAS, and disk. Zmanda supports advanced features, such as ransomware protection with air gap, client-side deduplication, forever incremental backups, and zero trust. It can be deployed as a container, VM, or Zmanda-hosted instance.

KumoMTA, a high-performance and highly flexible sending platform, is available under an Open Source license for high-volume email users looking to replace PowerMTA, Momentum, or traditional Open Source MTAs.

Exim serves as a mail transfer agent (MTA) for Unix-like operating systems. Initially developed by Philip Hazel in 1995 for the University of Cambridge Computing Service's email systems, Exim is released under the GPL, allowing users to freely download, utilize, and modify it. While it shares some similarities with Smail 3, Exim has evolved to offer greater user-friendliness and flexibility. Both Exim and Smail 3 operate on the Sendmail design model, where a single main binary manages all MTA functionalities. Although this monolithic architecture is sometimes viewed as less secure and slower, Exim boasts a superior security record compared to Sendmail and matches the performance of Qmail and Postfix, particularly in advanced functions like queue management, address routing, and testing. Notably, Exim lacks a built-in Graphical User Interface (GUI) for configuration, although some Linux distributions may provide one, enhancing its accessibility for users who prefer a visual approach. As a result, Exim remains a versatile choice for those looking to manage email systems effectively.

Cyrus IMAP serves as a server for emails, contacts, and calendars, and is available as free and open-source software. Among its many features are high-speed performance, strong security measures, and efficient resource management. Additionally, it includes powerful search capabilities and supports both CardDAV and CalDAV protocols. The platform ensures robust data storage and offers replication features, making it suitable for large-scale installations. Flexible filtering through Sieve allows for customizable email handling, while integration with antivirus and antispam toolkits enhances its security. Moreover, Cyrus IMAP effectively manages deliverability standards such as SPF, DKIM, and DMARC. It provides extensive authentication possibilities through Cyrus SASL and includes support for JMAP, alongside a comprehensive array of supported standards that enhance its versatility. Overall, Cyrus IMAP is an ideal solution for organizations seeking a reliable and feature-rich email server.

Who has access to your emails? In the case of traditional emails, they can be viewed by you, the recipient, all email service providers, and potentially others. However, with end-to-end encryption, only the sender and intended recipients have the ability to read those messages. The iOS application Letterbox simplifies the use of end-to-end encryption, is compatible with a majority of email services, and utilizes the standard encryption protocol OpenPGP. While Letterbox functions similarly to other common email applications, it highlights the security status of both incoming and outgoing messages, allowing users to differentiate between confidential and insecure emails. As a free open-source email client on iOS, Letterbox is part of an ongoing research initiative at Freie Universität Berlin. Though still under development, users will soon be able to access the app on their devices through Apple's TestFlight platform, ensuring that secure communication is more accessible than ever. This advancement aims to enhance user awareness regarding email security while providing a user-friendly experience.

Mailtraq Professional mail server software serves as a comprehensive solution for businesses seeking efficient email management. It delivers all necessary functionalities at an affordable cost, eliminating common complications associated with email servers. As a perfect alternative to Microsoft Exchange, Mailtraq is user-friendly to deploy and straightforward to oversee. With attractive licensing fees, no server client access licenses (CALs), and reliable performance, Mailtraq is the go-to choice for small to medium-sized businesses and home offices. Email plays a crucial role in the operations of any organization, and the security of stored messages is essential for the sustained success of your company. Although managing your own email server can involve some level of complexity and costs, it provides you with total physical control over who accesses your email communications. In contrast, utilizing your internet service provider's email service raises privacy concerns, as their administrators can access and read your messages. Likewise, relying on a software-as-a-service (SaaS) provider for hosted email solutions means you may not only be unaware of who is accessing your emails but also lack information about the physical location of your data storage. Therefore, opting for Mailtraq ensures both control and peace of mind regarding your email integrity and confidentiality.

Founded in 2000 by Philippe Gilbert, Alinto emerged from his bold vision and has since made significant strides in the digital communication landscape. By assembling a dedicated group of developers and specialists in cloud messaging, the company pioneered the first messaging platform in Europe that featured a cloud-based email solution, as well as the first web-based email accessible via mobile devices. This innovation allowed us to establish ourselves as a key player in the European digital sector. As a provider of software mail servers, our teams in R&D, Marketing, and Support prioritize a customer-centric approach that emphasizes availability and accessibility. More than just an electronic communication service, we offer tailored care and solutions that cater to your specific needs and requirements. Additionally, our team of experts is always on hand to provide support, ensuring that whether you are a telecom operator, an internet service provider, or an IT professional, you can count on us for assistance and guidance. We take pride in building lasting relationships with our clients to foster mutual growth and success.