Published at LXer:
No one saw this coming. Cisco, the networking giant, announced today it was buying PostPath, maker of the Linux-based Exchange server replacement PostPath Server. PostPath is best known as a drop-in replacement for Microsoft Exchange. Unlike other would-be Exchange competitors Scalix and Lotus Domino/Notes, which use a Outlook-compatible Mail Application Programming Interface (MAPI) on the client PC, PostPath actually reverse-engineered Microsoft's MAPI and Active Directory (AD) protocols. This means that, from the network and Windows PC's viewpoint, PostPath actually appears to be an Exchange server.
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