The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

delivery MTA

A mechanism used by a Symantec Mail Security 8200 Series appliance to send inbound and outbound messages that have already been filtered to their required destinations. To do this, the delivery MTA uses the filtering results and the configuration settings for relaying inbound and outbound mail.

A mail server that transfers email to local mail delivery agents (MDAs).