When an infected attachment is found, a report is made stating that the e-mail had a virus, an attempt to cleanse it was made, and the results of the cleansing, if cleansing is enabled. You can specify here who should receive these reports. If Message Sender is checked, the notification will be sent to the message sender. This action is strongly discouraged due to the high volume of viruses with faked sender addresses. If Message Recipient is checked, the notification will be sent to the recipient. If Administrator is checked, then the notification email will be sent to the virus-admin alias (which by default goes to the admin user) every time a virus is found. If you checked Virus Admin option, you must make sure that the alias virus-admin exists, and points to a real email address. This can be done in the Aliases and Routing section.
After editing the settings, click on the Save Settings button to save the new configuration.