You can do the following to configure Mail Anti-Virus:
You can select one of the pre-installed email security levels or configure a custom email security level.
If you have changed the email security level settings, you can always revert to the recommended email security level settings.
You can enable or disable scanning of message attachments, limit the maximum size of message attachments to be scanned, and limit the maximum message attachment scan duration.
Filtering of message attachments by type allows for automatic renaming or deletion of files of the specified types.
To increase the effectiveness of protection, you can use heuristic analysis. During heuristic analysis, Kaspersky Endpoint Security analyzes the activity of applications in the operating system. Heuristic analysis can detect threats in messages for which there are currently no records in the Kaspersky Endpoint Security databases.
An embeddable extension is available for the Microsoft Office Outlook mail client that allows convenient configuration of mail scan settings.
When working with other mail clients, including Microsoft Outlook Express®, Windows Mail, and Mozilla™ Thunderbird™, the Mail Anti-Virus component scans traffic of the SMTP, POP3, IMAP, and NNTP mail protocols.
When working with the Mozilla Thunderbird mail client, Mail Anti-Virus does not scan messages that are transmitted via the IMAP protocol for viruses and other threats if filters are used to move messages from the Inbox folder.