Chapter 9 Monitor

Table 46 Monitor > Anti-X Statistics > Anti-Spam (continued)

LABEL

DESCRIPTION

Spam Mails

This is the number of e-mails that the ZyWALL has determined to be

 

spam.

 

 

Spam Mails

This is the number of e-mails that matched an entry in the ZyWALL’s anti-

Detected by

spam black list.

Black List

 

 

 

Spam Mails

The ZyWALL can check the sender and relay IP addresses in an e-mail’s

Detected by

header against DNS (Domain Name Service)-based spam Black Lists

DNSBL

(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

 

uses.

 

 

DSNBL

This is how many queries that were sent to the ZyWALL’s configured list

Timeout

of DNSBL domains and did not receive a response in time.

 

 

Mail Sessions

This is how many e-mail sessions the ZyWALL allowed because they

Forwarded

exceeded the maximum number of e-mail sessions that the anti-spam

 

feature can check at a time.

 

You can see the ZyWALL’s threshold of concurrent e-mail sessions in the

 

Anti-Spam > Status screen.

 

Use the Anti-Spam > General screen to set whether the ZyWALL

 

forwards or drops sessions that exceed this threshold.

 

 

Mail Sessions

This is how many e-mail sessions the ZyWALL dropped because they

Dropped

exceeded the maximum number of e-mail sessions that the anti-spam

 

feature can check at a time.

 

You can see the ZyWALL’s threshold of concurrent e-mail sessions in the

 

Anti-Spam > Status screen.

 

Use the Anti-Spam > General screen to set whether the ZyWALL

 

forwards or drops sessions that exceed this threshold.

 

 

Top Sender By

Use this field to list the top e-mail or IP addresses from which the ZyWALL

 

has detected the most spam.

 

Select Sender IP to list the source IP addresses from which the ZyWALL

 

has detected the most spam.

 

Select Sender Email Address to list the top e-mail addresses from

 

which the ZyWALL has detected the most spam.

 

 

#

This field displays the entry’s rank in the list of the top entries.

 

 

Sender IP

This column displays when you display the entries by Sender IP. It shows

 

the source IP address of spam e-mails that the ZyWALL has detected.

 

 

Sender Mail

This column displays when you display the entries by Sender Mail

Address

Address. This column displays the e-mail addresses from which the

 

ZyWALL has detected the most spam.

 

 

Occurrence

This field displays how many spam e-mails the ZyWALL detected from the

 

sender.

 

 

204

 

ZyWALL USG 50 User’s Guide