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.

bad sender

A sender from whom you do not want to accept email messages. A bad sender is a member of at least one of the following groups: Local Bad Sender Domains, Local Bad Sender IPs, Third Party Bad Senders, or Symantec Global Bad Senders.