Linux Email Server Products

The PostPath Server (ppsd)

The PostPath Server is a Linux-based enterprise-class email and collaboration server. It is the only drop-in, natively compatible alternative to Microsoft Exchange.

The PostPath Server provides live and incremental backup, and granular restore, via standard tools, file-system-level replication and redundancy with automated failover, and support for open systems and open innovation including standards-based archiving, filtering and AJAX webmail access.

The server's high performance (compared with Exchange) and ease-of-backup enables the use of low-cost storage, server consolidation, and significantly larger user data-stores so that PST-file use can be reduced or eliminated. Also, the server's  flexible translation between Microsoft (ESTMP) and standard (SMTP) email transports, together with a highly configurable PostFix mail transport agent (MTA), enables the use of standards-based virus-filters and archiving systems, eliminating the need for Outlook journaling or proprietary APIs. See the Solutions page for more information on building a flexible, capable low cost lean infrastructure.

Product Whitepaper         Performance Whitepaper       Download

PostPath WebMail (ppwm)

PostPath Webmail provides AJAX browser-based access to email, calendar, contacts and other collaboration data. The AJAX user-interface provides a fluent user interface, including helpful mouse-over hints and information. At the same time, PostPath Webmail is browser independent, working equally well with diverse browsers including Internet Explorer, Firefox, and Safari.

The PostPath Webmail server is a Linux-based LAMP-style server that can run on the same server as ppsd, or on a physically separate server. A common configuration is to place the WebMail server in the corporate DMZ (so it can accessed from anywhere on the Internet) while placing ppsd inside a corporate firewall.

The PostPath WebMail server is bundled with ppsd for no extra charge.

Webmail Client        Download

PostPath Server VMware Edition

PostPath Server VMware Edition is a VMware virtual machine image (or "Virtual Appliance") with Linux pre-installed and of course with the PostPath Server setup and ready for final configuration in your network. You can run PostPath Server VMware Edition in the free VMware player, or within other VMware products such as VMware Workstation or VMware ESX.

PostPath Server VMware Edition enables you to leverage the benefits of virtualization for your corporate email infrastructure. Available virtualization benefits include rapid hardware-independent deployment, avoiding operating system installation, virtual snapshots for backup/restore, virtualized replication and high availability, and hardware migration without service interruption (VMotion).

PostPath Server VMware Edition also saves you from the need to install Linux, which can be valuable when configuring multiple servers or when wanting to rapidly try out the PostPath Server for teh first time in your environment.

And thanks to the exceptional efficiency of the PostPath Server software, you may even be able to run additional applications like Blackberry Enterprise Server (BES) or a Windows domain controller packaged together in one virtual environment.

Download VMware Edition for free here: http://order.postpath.com/purchase/new?vmware=true

To view via VMware's website, see: http://www.vmware.com/appliances/directory/1089
VMware-supporting software list: http://www.vmware.com/partners/alliances/vendors/

The PostPath Server Archive Edition

Keeping a complete archive of email has become increasingly important with the introduction of regulations such as the Federal Rules of Civil Procedure (FRCP), and increasingly more difficult to achieve. Using Microsoft Exchange for this requires that Exchange Journaling be used, an inefficient and cumbersome solution which is also costly to implement and administer.

The PostPath Server Archive Edition aims to change that, by providing an affordable, easy to configure solution. The PostPath Server Archive Edition works with your PostPath Email and Collaboration Server to create an archived copy of every email message that goes through your business, without constant maintenance by your IT staff.

Due to the cost and complexity of maintaining an email archive, many smaller businesses simply choose to only perform backups, and hope that there will never be a business or legal reason to perform a search for given emails. However, backups have two problems from an archiving standpoint:

  1. They can miss email messages that are received and then deleted between backups
  2. Searching backup media is a lengthy, time consuming process
PostPath Server Archive Edition creates copies of every message as they are received, and stores them on a live server. In the event a message needs to be restored, the administrator simply searches the archive server without having to go through the backup media.

Read more about the PostPath Server Archive Edition.