ZyXEL Communications ZyWALL 1100 User Manual page 134

Table 60 Monitor > UTM Statistics > Anti-Spam (continued)
LABEL
Spam Mails Detected by
Black List
Spam Mails Detected by
IP Reputation
Spam Mails Detected by
Mail Content
Spam Mails Detected by
DNSBL
Spam Mails with Virus
Detected by Mail
Content
Virus Mails
Query Timeout
Mail Sessions
Forwarded
Mail Sessions Dropped
Top Sender By
#
Sender IP
Sender Email Address
Occurrence
Chapter 6 Monitor
DESCRIPTION
This is the number of e-mails that matched an entry in the ZyWALL/USG's anti-
spam black list.
This is the number of e-mails that the ZyWALL/USG has determined to be spam by
IP Reputation. Spam or Unwanted Bulk Email is determined by the sender's IP
address.
This is the number of e-mails that the ZyWALL/USG has determined to have
malicious contents.
The ZyWALL/USG can check the sender and relay IP addresses in an e-mail's
header against DNS (Domain Name Service)-based spam Black Lists (DNSBLs).
This is the number of e-mails that had a sender or relay IP address in the header
which matched one of the DNSBLs that the ZyWALL/USG uses.
This is the number of e-mails that the ZyWALL/USG has determined to have
malicious contents and attached with virus.
This is the number of e-mails that the ZyWALL/USG has determined to be attached
with virus.
This is how many queries that were sent to the ZyWALL/USG's configured list of
DNSBL domains or Mail Scan services and did not receive a response in time.
This is how many e-mail sessions the ZyWALL/USG allowed because they exceeded
the maximum number of e-mail sessions that the anti-spam feature can check at a
time.
You can see the ZyWALL/USG's threshold of concurrent e-mail sessions in the Anti-
Spam > Status screen.
Use the Anti-Spam > General screen to set whether the ZyWALL/USG forwards
or drops sessions that exceed this threshold.
This is how many e-mail sessions the ZyWALL/USG dropped because they
exceeded the maximum number of e-mail sessions that the anti-spam feature can
check at a time.
You can see the ZyWALL/USG's threshold of concurrent e-mail sessions in the Anti-
Spam > Status screen.
Use the Anti-Spam > General screen to set whether the ZyWALL/USG forwards
or drops sessions that exceed this threshold.
Use this field to list the top e-mail or IP addresses from which the ZyWALL/USG has
detected the most spam.
Select Sender IP to list the source IP addresses from which the ZyWALL/USG has
detected the most spam.
Select Sender Email Address to list the top e-mail addresses from which the
ZyWALL/USG has detected the most spam.
This field displays the entry's rank in the list of the top entries.
This column displays when you display the entries by Sender IP. It shows the
source IP address of spam e-mails that the ZyWALL/USG has detected.
This column displays when you display the entries by Sender Email Address. This
column displays the e-mail addresses from which the ZyWALL/USG has detected
the most spam.
This field displays how many spam e-mails the ZyWALL/USG detected from the
sender.
ZyWALL/USG Series User's Guide
134