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Understanding Protocol-Only Virus-Detected Notifications

When content is blocked because a virus is found or a scan error occurs, the client generally still receives a successful response code but with modified content (file replacement) containing a warning message. But with protocol-only notifications, a protocol-specific error code may be returned to the client. This way, the client determines that a virus was detected rather than interpreting that a file transfer succeeded.

Published: 2013-11-19