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Xcitium Secure Email Gateway Enterprise

Xcitium Secure Email Gateway Enterprise

Admin Guide Version 6.7

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Modules > SMTP IPS/FW > SMTP IPS General Settings
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SMTP IPS General Settings

 

  • Click Modules > 'SMTP IPS/FW' > 'General' tab in the 'SMTP IPS/FW' screen.
  • Enable/disable the intrusion prevention system (IPS) and configure a security profile for Secure Email Gateway.
  • The IPS allows Secure Email Gateway to control the number of SMTP connections from any single IP address.
  • This helps to detect and block spam/denial-of-service attacks and aids traffic management.




  • SMTP IPS/FW (Intrusion Prevention) Module: The relevant settings specified in the security profile will now be applied.

The module has a set of predefined security profiles with different setting levels for each of the profile. The predefined profile can be edited as per the organization's requirement.


IPS General Settings – Table of Column Descriptions

Column Header

Description

Status

 Indicates whether the security profile is active.

Security Profile
  •  The profile determines how strict Secure Email Gateway should be regarding simultaneous connections from the same IP address. 
  • Click the 'Edit' button to see the specific details of each profile. You are free to edit a profile as you wish.

Activate

 Enable the profile. Please note that only one security profile can be active at a time.

Edit

 Modify the settings of the profile.

The interface allows you to:

  • Activate a security profile
  • Edit the parameters of a security profile

Activate a security profile

  • Click the  button under the 'Activate' column in a security profile row that you want to enable. Please note that only one security profile can be active at a time.

The 'Settings saved successfully' message will be displayed at the top.


Edit the parameters of a security profile

  • Click the button under the 'Edit' column in a security profile row that you want to edit.

The 'Edit IPS profile' screen will be displayed.




IPS Profile - Table of Parameters

Parameter

Description

Security profile

The name of the predefined profile.

Number of connections threshold to return SMTP 451 message

  •  Max. connections before Secure Email Gateway will refuse further connections and send 451 errors messages to the sender. If you wish to unblock this sender, please use the form at https://tools.korumail.com/contact to request Comodo whitelist or unblock the IP.

Number of connections threshold to block remote IP

 Max. connections before Secure Email Gateway firewall blocks the source IP address.

Limit simultaneous connections

 Enable controls on the number of simultaneous connections. See settings below.

Maximum number of simultaneous sessions from a single IP address

Maximum number of sessions that can be opened by a single IP address after limiting instant SMTP connections.

Limit the rate of new SMTP connections

If enabled, the parameters 'New SMTP connection interval' and 'New SMTP connection rate' can be specified to set limitations on new SMTP connections.

New SMTP connection interval (seconds)

The time between a new connection and the previous connection.

New SMTP connection rate per interval

Maximum number of new SMTP connections in specified interval.


  • Click 'Save' to apply your changes.
  • Click the 'Restore Defaults' button to restore the parameters to factory setting.
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