Cisco Cisco Content Security Management Appliance M1070 Mode D'Emploi
Chapter 3 Using Centralized Email Reporting
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Cisco IronPort AsyncOS 7.2.0 for Security Management User Guide
OL-21768-01
The mail trend graphs provide a visual representation of the mail flow. The
corresponding summary tables supply a numeric breakdown of the same
information. The Incoming Mail Summary table includes the percentage and
actual number of each type of message, including the total number of attempted,
threat, and clean messages. The Outgoing Mail Summary section includes
information about the outgoing threat and clean messages. It also includes a
breakdown of the delivered versus hard-bounced messages.
corresponding summary tables supply a numeric breakdown of the same
information. The Incoming Mail Summary table includes the percentage and
actual number of each type of message, including the total number of attempted,
threat, and clean messages. The Outgoing Mail Summary section includes
information about the outgoing threat and clean messages. It also includes a
breakdown of the delivered versus hard-bounced messages.
Counting Messages
The method that AsyncOS uses to count incoming mail depends on the number of
recipients per message. For example, an incoming message from example.com
sent to three recipients is counted as three messages coming from that sender.
recipients per message. For example, an incoming message from example.com
sent to three recipients is counted as three messages coming from that sender.
Because the messages blocked by reputation filtering do not actually enter the
work queue, the appliance does not have access to the list of recipients for an
incoming message. In this case, a multiplier is used to estimate the number of
recipients. This multiplier was determined by Cisco IronPort Systems and is based
on research of a large sampling of existing customer data.
work queue, the appliance does not have access to the list of recipients for an
incoming message. In this case, a multiplier is used to estimate the number of
recipients. This multiplier was determined by Cisco IronPort Systems and is based
on research of a large sampling of existing customer data.
Categorizing Email on Overview and Incoming Mail
Messages reported on the Overview and Incoming Mail pages are categorized as
follows:
follows:
Stopped by Reputation Filtering: All connections blocked by HAT policies
multiplied by a fixed multiplier (see the
multiplied by a fixed multiplier (see the
) plus all recipients blocked by recipient throttling.
Invalid Recipients: All recipients rejected by conversational LDAP rejection
plus all RAT rejections.
plus all RAT rejections.
Spam Messages Detected: The total count of messages detected by the anti-spam
scanning engine as positive or suspect and also those that were both spam and
virus positive.
scanning engine as positive or suspect and also those that were both spam and
virus positive.
Virus Messages Detected: The total count and percentage of messages detected
as virus positive and not also spam.
as virus positive and not also spam.