Symantec Security 5600 Series, Security 5400 Series,Clientless VPN 4400 Series, Administration Manual

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231 Defining your security environment
Controlling full application inspection of traffic
4 Optionally, on the Description tab, type a more detailed description than you typed in the Caption
text box.
5 Click OK .
6
Optionally, do one of the following:
■
To save your configuration now and activate later, on the toolbar, click Save .
■
To activate your configuration now, on the toolbar, click Activate .
When prompted to save your changes, click Yes .
Related information
For further information related to this topic, see the following:
■
“Proxy Properties: SMTP—General tab” on page 717
■
“Proxy Properties: POP3—General tab” on page 715
■
“Rule Properties—General tab” on page 589
Configuring additional email features
The security gateway’s ability to handle and process both inbound and outbound email can be modified
to suit your specific needs. This section presents an overview of the additional email capabilities the
security gateway supports, and the specific steps needed to configure those capabilities.
With the security gateway’s email capabilities, you can perform the following tasks:
■
“Modifying the timeout period to keep inactive POP3 connections open” on page 232
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“Modifying the timeout period to keep inactive SMTP connections open” on page 232
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“Modifying the SMTP greeting” on page 233
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“Disabling SMTP flow control checks” on page 233
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“Creating trace files of SMTP connections” on page 234
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“Setting the SMTP proxy to debug mode for more verbose error reporting” on page 234
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“Configuring an external server to relay email” on page 235
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“Enabling On-demand mail relay (ODMR)” on page 235
Destination Do one of the following:
■
If you are configuring this rule for outbound SMTP email, select the network to which
email is allowed. This may be a defined subnet or, more commonly, the Universe
entity.
■
If you are configuring this rule for inbound SMTP email, select the network to which
email is allowed.
■
If you are configuring this rule for inbound POP3 email, select the subnet network
entity representing your internal network to which email is allowed.
Leaving through Select the connection point through which traffic leaves the security gateway. For SMTP
traffic, this is most likely the outside interface. For POP3 traffic, this is most likely the
inside interface.
Service group Select the service group containing the smtp and pop3 protocols.