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Comodo KoruMail

Comodo KoruMail

Admin Guide Version

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Modules > SMTP IPS/FW > Blocked IP Addresses
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Blocked IP Addresses


  • KoruMail allows administrators to add IP addresses to blacklist so that mails from these sources never reach the SMTP level for processing.
  • In addition to manually including the IPs to be blocked, the IPs detected by SMTP IPS module as probable spamming addresses are also added automatically and listed separately below the interface.
  • Administrators can unblock the IP addresses by simply deleting the entry in the respective table.

To open the 'Blocked' interface
  • Click the 'Blocked' tab in the SMTP IPS/FW module.



The table at the top of the interface displays the details of the blocked IPs manually and the table below provides the details of IPs that were blocked automatically by SMTP IP sensor.


The interface allows administrators to:

  • Add a network or IP address to be blocked
  • Delete a blocked network or IP address from the list
  • Export the blocked network or IP address details
  • Import lists of network or IP addresses from files to be blocked
  • Delete an automatically blocked network or IP address by SMTP IPS sensor from the list


To add a network or IP address to be blocked

  • Enter the IP or Network address details in the first field
  • Enter an appropriate description for the address in the field under 'Description'.
  • Click the  button.

The address will be added and listed.

To delete a blocked network or IP address from the list

  • Click the  button beside an address that you want to delete and click 'OK' in the confirmation screen
  • Click the 'Delete all' button below to remove all the blocked addresses from the list and click 'OK' in the confirmation screen.


To export the blocked network or IP address details

  • Click the 'Export' link at the bottom of the screen




  • Download and save the list as a text file to your system.


To import lists of network or IP addresses from files to be blocked

  • Click the 'Import' link at the bottom of the screen



  • Click the 'Upload' button, navigate to the location where the file is saved and click 'Open'





  • Repeat the process to add more files to the list.




  • To remove a file from the list, click the 'Clear' link beside it.
  • To remove all the files, click the 'Clear All' button at the top.
  • Click 'Save'.


To delete an automatically blocked network or IP address by SMTP IPS sensor from the list


If you know the IP addresses blocked by the SMTP IPS sensor is a trusted source, then you can delete it from the list.

  • In the 'Addresses blocked by KoruMail SMTP IPS sensor' table, click the  button beside an address that you want to delete.



  • Click 'OK' in the confirmation screen


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