ZyXEL Communications Centralized Network Management Vantage CNM, Руководство пользователя

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Chapter 6 Device Security Settings
Vantage CNM User’s Guide
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6.5.2 Anti-Spam External DB Screen
Click Device Operation > Device Configuration > Security > Anti-Spam > External DB to
display the Anti-Spam External DB screen.
Use this screen to enable or disable the use of the anti-spam external database. You can also
configure the spam threshold and what to do when no valid spam score is received. You must
register for this service before you can use it (see the chapter on registration for details).
Figure 67 Device Operation > Device Configuration > Security > Anti-Spam > External DB
Discard SMTP mail.
Forward POP3 mail
with tag in mail subject Select this radio button to have the device discard spam SMTP e-mail. The
device will still forward spam POP3 e-mail with the tag that you define.
Action taken when mail
sessions threshold is
reached The anti-spam feature limits the number of concurrent e-mail sessions. An e-
mail session is when an e-mail client and e-mail server (or two e-mail
servers) connect through the device. Use this section to configure what the
device does when the number of concurrent e-mail sessions goes over the
threshold (see the appendix of product specifications for the threshold).
Select
Forward to have the device allow the excess e-mail sessions without
any spam filtering.
Select
Block to have the device drop mail connections to stop the excess e-
mail sessions. The e-mail client or server will have to attempt to send or
receive e-mail later when the number of e-mail sessions is under the
threshold.
Apply Click Apply to save your changes back to the device.
Reset Click Reset to begin configuring this screen afresh.
Table 55 Device Operation > Device Configuration > Security > Anti-Spam > General
LABEL DESCRIPTION