A rule is a set of conditions that must be fulfilled by a file attachment for the application to apply the defined action to the file attachment of an email message.
For each attachment filtering rule, the administrator defines the following conditions:
You can specify the following parameters as an attachment filtering conditions:
You can specify full file names or use file name masks.
The application recognizes the format of a file by its structure, that is, by the way it is stored or displayed on the screen. This allows you to filter attachments even if the extension of an attached file does not match the actual type of the file (for example, if the extension has been changed intentionally).
If multiple parameters are selected, the rule will be applied if the attached file matches at least one of them.
The application can perform any of the following actions on filtered messages:
If an attached file match the parameters of multiple rules, the application will apply the rule with the most strict parameters: delete the message, delete the attached object, or delete the entire attachment.
The application can apply filtering rules to messages to/from specific users or user groups.
You can drill down the attachment filtering rules by excluding messages from filtering. You can exclude messages from scanning as follows:
The application will not apply the filtering rules to message attachments from the specified senders.
The application will not apply the filtering rules to message attachments for the specified recipients.
The application will not apply the filtering rules to attached files that match the specified names or name masks.
The application will not apply the filtering rules to files that have the specified formats.