ZyXEL Communications ZyWALL USG 100 Series, Руководство пользователя

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Chapter 38 Anti-Spam
ZyWALL USG 100/200 Series User’s Guide
703
38.4.1 The Anti-Spam Black or White List Add/Edit Screen
In the anti-spam Black List or White List screen, click the Add icon or an Edit
icon to display the following screen.
Use this screen to configure an anti-spam black list entry to identify spam e-mail.
You can create entries based on specific subject text, or the sender’s or relay’s IP
address or e-mail address. You can also create entries that check for particular
header fields and values.
Figure 470 Configuration > Anti-X > Anti-Spam > Black/White List > Black List (or
White List) > Add
The following table describes the labels in this screen.
Table 186 Configuration > Anti-X > Anti-Spam > Black/White List > Black List (or
White List) > Add
LABEL DESCRIPTION
Enable Rule Select this to have the ZyWALL use this entry as part of the black or
white list.
To actually use the entry, you must also turn on the use of the list in the
corresponding list screen, enable the anti-spam feature in the anti-spam
general screen, and configure an anti-spam policy to use the list.
Type Use this field to base the entry on the e-mail’s subject, source or relay
IP address, source e-mail address, or header.
Select Subject to have the ZyWALL check e-mail for specific content in
the subject line.
Select IP Address to have the ZyWALL check e-mail for a specific
source or relay IP address.
Select E-Mail Address to have the ZyWALL check e-mail for a specific
source e-mail address or domain name.
Select Mail Header to have the ZyWALL check e-mail for specific
header fields and values. Configure black list header entries to check for
e-mail from bulk mail programs or with content commonly used in
spam. Configure white list header entries to allow certain header values
that identify the e-mail as being from a trusted source.
Mail Subject
Keyword This field displays when you select the Subject type. Enter up to 63
ASCII characters of text to check for in e-mail headers. Spaces are not
allowed, although you could substitute a question mark (?). See
Section
38.4.2 on page 704 for more details.