Back pressureA pressure that can cause water to backflow into the water supply when a user's water system is at a higher pressure than the public water system.
backboneThe bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone.
backoffIn Exchange Server 2007, a mechanism used to deliver messages at an interim hop along the least cost routing path when direct relay fails for any reason…
BadMail folderThe BadMail folder contains messages that cannot be delivered to your organization, and also cannot be returned to the sender.
Basic authenticationAuthentication protocol supported by most Web servers and browsers. Transmits the user name and password in clear text.
Bcc journalingBcc journaling is message-only journaling with the added ability to capture the Bcc recipients.
BifurcationA split in the delivery path of an e-mail message, which is sent to multiple recipients, so that the different recipients receive different copies of the…
Block phraseA custom word or phrase that the administrator sets for the Content Filter agent to prevent e-mail messages that contain specific words or phrases from…
bounce messageA non-delivery receipt that is sent to an e-mail sender when a message cannot be delivered to the intended recipient temporarily or permanently.
boundThe upper or lower limit in a permitted range of values. [Exchange 2007]
bridgehead serverA nominated server that acts as a message transfer point between Exchange 2000 routing groups.
BrokenOne of four health states of a storage group copy. Broken indicates that the system has detected a condition that prevents replication and replay.
BrowserAn application, such as Internet Explorer or Netscape Navigator, used to view and navigate the World Wide Web and other Internet resources.