Clustering

Clustering allows you to isolate specific services to dedicated servers, thereby increasing the capacity of your mail services, and simplifying the process of expanding your system. MailEnable stores all system data in a shared storage repository. Server specific information is stored in the Windows Registry (such as details about which IP addresses a service is bound to). This means that you are able to install multiple server nodes and point them at the same storage repository.

By load balancing and clustering front-end servers (IIS, SMTP/POP, IMAP etc.) the system can effectively scale out very easily from the front-end perspective. Ideally, you may have a single file service (probably network attached storage or a SAN) and point all the MailEnable servers to the same postoffice/configuration repository. This means that you can simply add SMTP, POP or MTA servers as required and use IP load balancing to provide a clustered IP address.