Edit The Pop3 Proxy; Set Access Control Options - Watchguard Firebox X15 User Manual

Proxy Settings
About the POP3 proxy
POP3 (Post Office Protocol v.3) is a protocol that moves email messages from an email server to an email client
on a TCP connection on port 110. Most Internet-based email accounts use POP3. With POP3, an email client
contacts the email server and checks for any new email messages. If it finds a new message, it downloads the
email message to the local email client. After the message is received by the email client, the connection is
closed.

Edit the POP3 proxy

To change the default settings of the POP3 proxy, select Firewall > Outgoing from the navigation menu. Find
the POP3 proxy and click Edit. Make sure you look at all tabs of the POP3 proxy configuration. The Properties
tab shows you what port and protocol the proxy uses. You can change the port and protocol on this tab if
necessary.

Set access control options

On the Outgoing or Incoming 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.
1. Select the Outgoing tab.
2. From the Outgoing Filter drop-down list, select Deny, Allow, or No Rule.
3. Use the From drop-down list to add the IP address, network address, range of IP addresses of
computers on the trusted or optional network, or an 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). For more information, see
4. Click Add. The From text box shows the IP addresses you added. The From text box can have more
than one entry.
5. Use the To drop-down list to add the IP address, network address, range of IP addresses of computers
on the external network, or alias for which this policy applies.
Network IP addresses must be entered in slash notation.
6. Click Add.
To add additional IP addresses, repeat steps 3–6.
138
About Slash Notation.
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