Symantec 10490452 Administration Guide - Page 238

238 Glossary bandwidth The amount of data transmitted or received per unit time. In digital systems, bandwidth is proportional to the data speed in bits per second (bps). Thus, a modem that works at 57,600 bps has twice the bandwidth of a modem that works at 28,800 bps. Blocked sender A sender identified as blocked, either by email address or originating IP address, or on a Blocked Senders List. You can configure how messages from blocked senders are handled. Blocked Senders List A list used by Symantec Mail Security for SMTP in filtering email. Email from senders on a Blocked Senders List is processed according to your configuration choices. bounce An action that can be performed on an email message by an email server, which consists of returning the message to its From: address with a custom response. Symantec Mail Security for SMTP also delivers the message, when possible, to its intended recipient. broadcast address A common address that is used to direct (broadcast) a message to all systems on a network. The broadcast address is based upon the network address and the subnet mask. CA (Certificate Authority) A trusted third-party organization or company that issues digital certificates used to create digital signatures and public-private key pairs. The role of the CA in this process is to guarantee that the entity granting the unique certificate is, in fact, who it claims to be. This means that the CA usually has an arrangement with the requesting entity to confirm a claimed identity. CAs are a critical component in data security and electronic commerce because they guarantee that the two parties exchanging information are really who they claim to be. certificate A file that is used by cryptographic systems as proof of identity. It contains a user's name and public key. Certificate Authority- A type of Secure Sockets Layer (SSL) that provides authentication and data encryption signed SSL through a certificate that is digitally signed by a Certificate Authority. CIDR Classless Inter-Domain Routing is a way of specifying a range of addresses using an arbitrary number of bits. For instance, a CIDR specification of 206.13.1.48/25 would include any address in which the first 25 bits of the address matched the first 25 bits of 206.13.1.48. clean An action that consists of deleting unrepairable virus infections and repairing repairable virus infections. Conduit A component of a Symantec Mail Security for SMTP Scanner that retrieves new and updated filters from Symantec Security Response through secure HTTPS file transfer. Once retrieved, the Conduit authenticates filters, and then alerts the Filter Hub that new filters are to be received and implemented. Finally, the Conduit manages statistics for use by Symantec Security Response and for generating reports. Content Compliance A set of features in Symantec Mail Security for SMTP that enable administrators to enforce corporate email policies, reduce legal liability, and ensure compliance with regulatory requirements. These features include annotations, streamlined filter creation using multiple criteria and multiple actions, flexible sender specification, dictionary filters, and attachment management.