McAfee Email and Web Security Appliance 5.5, Руководство по установке

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When I request an immediate update, nothing happens. How do I know when the
DAT is updated?
To see the installed DAT version number:
• In the navigation pane, select Monitor | System Status, then General Status.
• Alternatively, select Monitor | Updates.
The DAT files are downloaded, checked and applied.
The appliance does not wait for the update to complete (which can take a few minutes even
with a fast Internet connection) but starts it in the background.
Select Monitor | System Status to show the new DAT version number when you next view
the page after the new DAT files have been successfully installed.
Anti-spam
This section discusses anti-spam issues.
I cannot find the anti-spam features described in this guide.
Some anti-spam features need the Anti-Spam Module to be enabled.
I have configured the appliance to reject spam with an RBL Servers check but some
spam mail is still getting through.
No anti-spam software is fully effective, and cannot guarantee to block all spam email messages.
The appliance uses a list of the names of known email abusers and the networks they use.
These lists are effective in reducing unwanted email messages but are not complete.
To block a specific sender of spam:
1 In the navigation pane, select Configure | SMTP.
2 Select Protocol Settings | Permit and Deny Settings.
3 At Deny Sender, type the sender’s email address.
Users are not getting normal email messages.
Users might not receive normal email messages for several reasons:
• The email messages might be coming from someone listed in the Deny Sender list. You
might need to:
• Refine the Deny Sender list to ensure that wanted email messages are not blocked. For
example, you might need to type specific email addresses rather than ban a whole domain
or network.
• Add the sender, domain, or network to the Permit Sender list. The appliance does scan
email from senders, domains and networks in this list for spam. The Permit Senders
list overrides entries in the Deny Sender lists.
• The email message might have been blocked because it comes from a sender or organization
that has been recognized by one of your real time anti-spam lists as a potential source of
spam.
• The balance between blocking spam and normal email messages might need changing. For
example, if the appliance is blocking email messages when there is only a small chance that
they contain spam, you risk unintentionally blocking normal email messages. It is better to
risk letting some spam through.
Troubleshooting
FAQ
55 McAfee Email and Web Security Appliance 5.5 Installation Guide