**Distributing POP3 Client features** * Can be configured to download mail from an unlimited number of remote POP3 mailboxes and to process that mail into any number of local mailboxes (so, you can have four remote mailboxes all downloaded into one local user, or each remote mailbox being downloaded to separate users. * Supports domain mailboxes - can distribute mail properly to local users even if all mail for your domain ends up in a single mailbox. The POP3 client uses extensive heuristics to work out exactly to whom each message in a domain mailbox is actually addressed. * Extensive customization options allow you to tailor the behaviour of the client to suit your circumstances: for instance, you can specify non-standard headers in messages that contain recipient addresses, and
A fully fledged, free email server solution, an open source project (GPL v2).
tags: mail-server dkim spfDovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. Dovecot is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory.
tags: imap imap-server pop3 sftpMicrosoft Exchange Server is a messaging and collaborative software product developed by Microsoft. It is part of the Microsoft Servers line of server products and is widely used by enterprises using Microsoft infrastructure solutions. Exchanges major features consist of electronic mail, calendaring, contacts and tasks; support for mobile and web-based access to information; and support for data storage.
tags: chat-servers mail-serverhMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
tags: imap mail-queue mail-server pop3 smtpKopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
tags: archiving caldav cloud-hosting email-client email-managementKerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.
tags: antivirus backup-and-restore chat-servers contact-sync imap-transfersAxigen is a premium, all-in-one email, calendaring and collaboration platform, based on an innovative, proprietary technology, providing unmatched manageability for system administrators. Integrating all modules in a robust messaging solution, Axigen is developed for demanding users, from small businesses to large service providers.
tags: api caldav calendaring carddav delegated-administrationOpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
tags: outlook exchange mail-serverArchiveopteryx is an Internet mail server, optimised to support long-term archival storage. It seeks to make it practical not only to manage large archives, but to use the information therein on a daily basis instead of relegating it to offline storage.
tags: imap mail-server pop3 postgresql saslTurnkey Solutions for the Enterprise Cloud
tags: caldav calendars cardav cloud-based cloud-computingXeams is a secure & powerful mail server for Windows, Linux, Solaris, MacOSX and other flavors or UNIX, which supports SMTP, POP3, and IMAP. It includes a powerful spam/junk filtering engine that elimates up to 99% of junk email right out of the box. The software offers a flexible approach to email, making it a very user friendly server.
tags: mail-server spam-filter spam content-filterHyperOffices is a Microsoft Exchange alternative with all the messaging features growing business need - custom business email; Outlook email; shared Outlook contacts, calendars and tasks; web and mobile email; Outlook synchronization; shared calendars, contacts, tasks and documents, forums and more. Theres no need to set up costly email servers and complex email software. Just sign up online and get started in minutes.
tags: outlook-sync hosted-email microsoft-exchange-alternative