A business application is generating and sending QPACK files as attachments via e-mail. When scanned by Symantec Mail Security for Microsoft Exchange (SMSMSE) the attachment receives an "unscannable" verdict. The attachments are quarantined or deleted depending on the action configured.
File is encoded with ZIP encoding.
1. Save the attachment to the file system. 2. Rename the file as a .ZIP extension. 3. Open with Windows explorer or Winzip. Ensure the file opens correctly.
The following Event is reported in the Windows Application Event log for each of these unscannable items:
Source: Symantec Mail Security for Microsoft Exchange
The attachment "Pack.QPACK" located in message with subject "Sample File", located in SMTP has violated the following policy settings:
Rule: Unscannable File Rule
The following actions were taken on it:
The attachment "Pack.QPACK" was Quarantined for the following reason(s):
Scan Engine Error. CSAPI DEC result: 0xA. A malformed container is detected at location Pack.QPACK
SMSMSE attempts to open the attachment and scan the individual parts. SMSMSE is not handling the QPACK file formats and marking the attachment as unscannable.