MERAK is a full-featured, open standards-based mail server with support for SMTP/POP3/IMAP4/HTTP protocols, Remote SSL Web Administration, Content Filtering, Static Routes, mailing list and list server support, full support for any external anti-virus system, anti spam and anti-relaying features and more.

Multiple award winning email server with ultimate features and more than years history. Provides a wide range of optional components and services including secured mail services (SMTP, POP3, IMAP), AJAX webmail (Outlook replacement), anti-spam (SpamAssassin, SPF, Bayes, SURBL, Quarantine, DKIM, Greylisting, Reports), anti-virus, instant messaging (XMPP supporting AOL, ICQ, MSN, Yahoo, GoogleTalk gateways), groupware (with access from webmail, Outlook, CalDAV, SyncML), FTP (server with many security standards and the system integration), load balancing with ODBC, monitoring and report facilities (charts and reports), developers API, account types (groups, mailing lists, list servers, executables, catalogs, static routes, remote accounts, users, domains), system alert tools, remote and web administration. IceWarp eMail Server is a reliable, easy-to-use, and affordable communication solution that is used by more than 80 million users worldwide. Available on Windows and Unix based systems.

Based on the well-established Merak technology, IceWarp Server is robust, feature rich and yet extremely easy to administer. For over 8 years on the market, it has evolved into a comprehensive messaging platform for electronic communication, covering:
* Secure Email service
* Integrated antivirus and antispam
* Web access to email
* Collaboration features with Outlook plug-in
* Synchronization of wireless devices and web calendars
* Real-time messaging
* IP telephony with PSTN gateway
* Built-in web server
* File exchange

Couple these features with
* High-performance, resource aware, and easily scalable engine
* Single point authentication layer for all services
* Load-balancing, distributed services and high-availability options
* Flexibility of settings
* Field-proven compatibility
* Extensive options for system integration
* Intuitive, one-place administration interface
* Full Unicode support across all subsystems

and IceWarp Server is easily the best choice for a wide range of environments:
* Office networks of all scales
* Corporations with multiple office locations
* Nation-wide Internet Service Providers
* Developers and system integrators
* Schools and universities
* Government bodies

Rock-solid reliability allows the server to be used in various deployment scenarios:
* MTA with Undeliverable settings & Retry intervals
* MX Resolver for direct delivery via DNS look-up
* Relay Server with Trusted hosts
* LAN Server in Local delivery mode
* Backup Domain e-mail Server
* ETRN Server
* Anti Spam Filtering Gateway
* DMZ email server shield
* SMTP Router with criteria based routing options

IceWarp eMail Server can fully integrate with your current infrastructure via ODBC compliant DB connectivity, Active Directory integration, and multi-threaded SSL secured services. It provides support for systems with multiple CPUs, and can ensure high availability via, load-balancing, DNS SmartCache, OpenLDAP and many other sophisticated technologies.
Many of the well respected companies and business colleagues you communicate with everyday are using IceWarp eMail Server right now. They might be a small business to large businesses and major ISPs. Organizations such as Toyota, NATO, the FBI, the United States Government and many others have utilized it. You probably know others who have already deployed Merak as their communications solution and recognizing its value.

The license of this software is Free Trial Software, the price is $651, you can free download and get a free trial.