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Comodo Antispam Gateway

Comodo Antispam Gateway

Admin Guide ver 2.12

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Domain Management > Manage A Domain > Domain Rules > Blacklist Senders Per User
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  • Appendix 1 - CASG Error Codes
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Blacklist Senders Per User

 

  • CASG allows admins to prevent certain senders from sending mail to specific users.
  • This feature is useful in scenarios where you want to allow mails from a particular sender to all users in the domain but want to block the sender for a particular recipient in the domain.
  • Senders can be added manually, imported from .csv and from a user request.


Configure sender blacklist per user

  • Click 'Domain Rules' > 'Blacklist senders per user' in the left-hand menu:



     

    The 'Blacklist senders per user' interface opens:




    • Sender – Blackisted sender’s email address
    • Recipient – User name of the recipient
    • Created date – Date and time the blacklist sender was added
    From this interface can:
    • Add senders to blacklist per user
    • Export the list to CSV file for use in future
    • Remove senders from blacklist senders per user list

    Add Senders to Blacklist Per User


    You can add senders to blacklist in three ways:

    • Manually add senders
    • Import senders from a CSV file
    • Add senders from 'Blacklist requests from users'

    Manually add senders


    You can manually specify the senders to be blacklisted for specific recipients.


    Manually add senders to blacklist per user basis

    • Click the 'Add' button

    The 'Add sender' dialog opens:




    • Sender - Enter the sender's username in the first textbox and sender's email domain name after the @ symbol in the first row.
    • Recipient - Enter the recipient's username in the first text box in the second row. Note: The recipient should be a valid user.
    • Click 'Save' button. Repeat the process to add more blacklisted senders for the user.

    The list is updated and displayed:




    Import senders from a CSV file

     

    Administrators can import multiple senders at a time from a comma separated values (CSV) file to sender blacklist per user. The list of blacklisted senders and respective recipients can be created using notepad or a speadsheet application like MS Excel or OpenOffice Calc and saved in .csv format. Each line in the .csv file should contain the sender's email address and the username of the recipient or sender's email address and the recipient's email address, separated by a comma. An example is shown below:


    sender1@anydomain.com, recipient1


    sender2@anydomain.com, recipient2@domain.com


    sender3@somedomain.com, recipient3


    Import senders to Blacklist from CSV file

    • Click the 'Import from CSV file' button from the 'Blacklist senders per user' interface.
    The 'Upload' dialog appears:


    • Click 'Upload', navigate to the location where the CSV file is saved and click the 'Open' button. The maximum size of the file that can be uploaded is 9 MB.

    The upload is placed in import tasks queue and the progress of the upload is displayed. If you want to remove the upload from the queue, click the 'Cancel import from CSV file' button. The 'Cancel import from CSV file' deletes only the remaining part of not imported task.




    On completion of the upload process, the result is displayed.




    The sender blacklist per user from the CSV file is uploaded and the administrator who carried out the task receives a notification about the import task completion.


    Add senders from Blacklist requests from users


    Administrators can add senders to blacklist based on the requests of the users. See Email Management > Blacklisted Requests for more details.

     

    Export the blacklist senders per user list to CSV file


    Administrators can save the blacklist senders per user list by exporting it as a CSV file. If required in future, the administrator can import the users from the csv file, for example for a new account or after a reset.


    Export the list

    • Click the 'Export to CSV file' button




    A file download dialog is displayed.

    • Click 'OK' to save the file


    Delete Senders from Blacklist

    • To delete sender(s) from the blacklist, select them from the list and click the 'Delete' button.




    • Click 'OK' in the confirmation dialog.


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