Configuring The Pop3 Proxy - Watchguard Firebox X20E User Manual

Configuring the POP3 Proxy

Setting access control options
On the Outgoing tab, you can set rules that filter IP addresses, network addresses, or host ranges. This
is the same functionality you have in packet filter policies. See Chapter 7, "Firewall Policies" for more
information.
Select the Outgoing tab.
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From the Outgoing Filter drop-down list, select Allow, or No Rule.
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Use the From drop-down list to add the IP address, network address, range of IP addresses of
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computers on the trusted or optional network, or alias for which this policy applies.
Network IP addresses must be entered in "slash" notation (also known as Classless Inter Domain
Routing or CIDR notation).
Click Add. The From text box shows the IP addresses you added. This box can have more than
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one entry.
Use the To drop-down list to add the IP address, network address, or range of IP addresses of
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computers on the external network for which this policy applies.
Network IP addresses must be entered in "slash" notation (also known as Classless Inter Domain
Routing or CIDR notation).
Click Add. The To text box shows the IP addresses you added. This box can have more than one
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entry.
Setting proxy limits
On the POP3 Settings tab, you can adjust timeout and line length limits. This stops the POP3 proxy
from using too many network resources and can prevent some types of attacks. You can also custom-
ize the deny message that users see when an email message they try to download from the email
server is blocked. For a complete description of the actions the POP3 proxy takes and the results your
users see when the POP3 proxy finds and blocks content, see the FAQs for the Edge at
www.watchguard.com/support/faq/edge.
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