CASG will automatically block all emails to blacklisted recipients. Please note that the messages will not be quarantined and legitimate email sending SMTP servers will send a bounce message to the sender. The Administrator can:
Reset the list - Delete all blacklisted senders and make the list empty by clicking the 'Reset to default' button
To configure recipient blacklist
- Click the 'Domain Rules' tab on the left hand side navigation to expand and then click the 'Recipient blacklist' sub tab.
The 'Recipient blacklist' interface of the selected domain will open.
You can add recipients to the black list in the following ways:
- Click 'Add' to add a new user to the list
Enter the recipient name in the E-mail textbox and click the 'Save' button. Repeat the process to add more recipients to blacklist.
To add a particular set of recipients to blacklist, prefix or suffix the wildcard * in the E-mail text field. For example, enter *.stores for all the recipients in stores department to be blacklisted.
To add a whole domain to blacklist, enter the wildcard * in the E-mail text field and click the 'Save' button. Now all the recipients in that domain will be blacklisted.
The list of blacklisted recipients will be displayed.
Administrators can import many users from a file to Recipient blacklist at a time. The users should be saved in the format shown below as an example:
Click the 'Import from CSV file' button to import users to blacklist from a CSV file.
- Click 'Upload', navigate to the location where the file is saved and click the 'Open' button. The maximum size of the file that can be uploaded is 9 MB.
The upload will be placed in import tasks queue and the progress of the upload will be displayed. If you want to remove the upload from the queue, click the 'Remove import task' button. The 'Remove import task' deletes only a remaining part of not imported task.
On completion of the upload process, the results will be displayed.
The recipient blacklist from .csv file will be uploaded and the administrator who carried out the task will receive a notification about the import task completion.
The administrator can save the configured recipient blacklist 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.
To export the list
Click the 'Export to CSV file' to save the list of blacklisted recipients as a CSV file
A file download dialog will be displayed.
Click 'OK' and navigate to the location in your computer and save the file or the file will be downloaded to your download folder.
To delete a recipient from the blacklist, select the recipient from the list and click the 'Delete' button
Click 'OK' to confirm your changes. The user will be removed from the blacklist and the mails addressed to the user will be allowed as per the existing filter settings in CASG.