Cisco IronPort AsyncOS 7.5 for Email Configuration Guide
The act of delivering email messages to recipient domains or internal mail hosts
from the Cisco IronPort appliance from a specific IP interface. The Cisco
IronPort appliance can deliver messages from multiple IP interfaces within same
physical machine using Virtual Gateway technology. Each Virtual Gateway
contains a distinct IP address, hostname and domain, and email queue, and you
can configure different mail flow policies and scanning strategies for each.
You can tailor the configuration of the delivery that the Cisco IronPort appliance
performs, including the maximum simultaneous connections to remote hosts, the
per-Virtual Gateway limit of maximum simultaneous connections to the host,
and whether the conversations to remote hosts are encrypted.
Data loss prevention. RSA Security DLP scanning engine protects your
organization’s information and intellectual property and enforces regulatory and
organizational compliance by preventing users from unintentionally emailing
A data loss prevention incident occurs when a DLP policy detects one or more
DLP violations that merit attention in an outgoing message.
A data loss prevention policy is a set of conditions used to determine whether an
outgoing message contains sensitive data and the actions that AsyncOS takes on
a message that contains such data.
DLP Risk Factor
A score of 0 to 100 that represents the security risk of the DLP violations
detected in an outgoing message. Based on the risk factor, the DLP policy
determines the actions to take on the message.
An instance of data being found in a message that violates your organization’s
Domain Name System. See RFC 1045 and RFC 1035. DNS servers on a network
resolve IP addresses to hostnames, and vice versa.
Denial of Service attack, can also be in the form of DDos (Distributed Denial of
Service Attack). An attack on a network or computer, the primary aim of which
is to disrupt access to a given service.
Delivery Status Notification, a bounced message.