During installation of Kaspersky Endpoint Security, the Mail Anti-Virus extension is embedded into Microsoft Office Outlook (hereinafter also referred to as Outlook). It allows you to open the Mail Anti-Virus settings from within Outlook, and to specify when email messages are to be scanned for viruses and other threats. The Mail Anti-Virus extension for Outlook can scan incoming and outgoing messages that are transmitted via the POP3, SMTP, NNTP, IMAP, and MAPI protocols.
Mail Anti-Virus settings can be configured directly in Outlook if the Additional: Microsoft Office Outlook extension check box is selected in the interface of Kaspersky Endpoint Security.
In Outlook, incoming messages are first scanned by Mail Anti-Virus (if the POP3 / SMTP / NNTP / IMAP traffic check box is selected in the interface of Kaspersky Endpoint Security) and then by the Mail Anti-Virus extension for Outlook. If Mail Anti-Virus detects a malicious object in a message, it alerts you about this event.
Your choice of action in the notification window determines which component eliminates the threat in the message: Mail Anti-Virus or the Mail Anti-Virus extension for Outlook.
Outgoing messages are first scanned by the Mail Anti-Virus extension for Outlook, and are then scanned by Mail Anti-Virus.