Depending on the type of attachment, a security rule can be defined so that the message is delivered normally, quarantined or destroyed.
To warn of the detection of a prohibited attachment type, notifications can be issued to the recipient, administrator and sender.
We detect the following file types:
- CRYPTS: Warning! This option corresponds to the email itself and not to the attachments, we consider that a user must have the password to open an encrypted attachment, this one is not a threat;
- EXECUTABLES: These files contain executable code;
- ARCHIVES: These files contain compressed files;
- VIDEO, AUDIO, IMAGE: These files are multimedia files.
For all these files, it is preferable to quarantine them and allow them to be released by certain users only. To do this, simply check the corresponding box in the quarantine subscriptions.
To refine the filtering of email content, it is possible to choose the details of the file extension to be blocked. A click on the "+" sign displays a list of granularity.