PostPath Offers Exchange 5.5 Alternative
        Company offers migration advice for those still  holding on to older Microsoft mail servers
        
        
        IT administrators looking to move from the Microsoft Exchange  5.5 e-mail message server, which Microsoft stopped supporting in 2005, are  getting a helping hand from PostPath.  The company released its One-Step  Migration Methodology to help Exchange 5.5 users switch to the PostPath  Server 3.0 e-mail and collaboration server. 
PostPath aims to provide a lower-cost alternative to Exchange  and describes its open source Linux-based server as a natively compatible alternative to  the Microsoft offering. PostPath claims that its technology enables a flexible  translation between Microsoft's ESMTP and SMTP-based e-mail transfer protocols. 
PostPath Server 3.0 features "bottomless" mailboxes  and support for mobile messaging devices. The server is compatible "with  Active Directory, Outlook, and other Exchange servers, without requiring any  connectors or plug-ins," according to an announcement issued by PostPath.
On the back end, the server provides live and  incremental backup, granular restore, file-system-level replication and  redundancy. 
PostPath cited research from Gartner, stating that the analyst firm had  reported in September of last year that at least 20 percent of Exchange systems  are still the 5.5 version. IT administrators were reluctant to upgrade because  of the risks of complex multistep user migrations and unresolved issues with  more recent Exchange releases, according to PostPath's announcement.
-- David Kopf