HYBRID EMAIL ARCHIVING PRODUCTS
Hybrid email archiving approaches includes legacy and new technology. With hybrid archiving, organizations keeps their Exchange or other email system on-premise and archives its messages with service provider.
The organization points its MX records to the hybrid service provider, as it would with the hosted service provider. Once the email messages are received by the hybrid service provider, it performs whatever services the organization has purchased, then downloads the messages to the organization's Exchange server or other email application. End users get their recent emails through the Exchange server and access the service provider's archives for older messages.
Mimecast is one SaaS provider that offers the hybrid model. The company offers a number of services, including inbound and outbound archiving, security, anti-spam and anti-spyware protection. With Mimecast, an administrator uses a Web-based console to manage the archive similar to how they would manage an Exchange server. Mimecast also provides an Outlook plug-in in case the Exchange server goes down, and a Web-based interface in case the whole network goes down. The company also provides an Exchange plug-in to interact with the Exchange journal to capture and archive internal email.
Mimecast's Roberto said a good SaaS email archiving product should offer similar management features as the Exchange server. "You can work in the software as a service environment and have the equivalent functionality of something that you could previously only do on premise," Roberto said. Mimecast uses a per-user pricing structure similar to the Google pricing model with added charges for each service the organization purchases. Other hybrid email archiving vendors include Autonomy/Zantaz, Proofpoint Inc. and Symantec Corp.
There are options available to SMBs to start and run an email archiving system. For those lucky to have dedicated IT staff, on-premise solutions offer granular policy controls and fixed costs. Those SMBs with less IT resources can choose between hosted and hybrid solutions to match their comfort level with having data offsite.

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