Domino crashes and the nsd log shows that nntask exited on an access violation.
Symptoms
When Symantec Mail Security for Domino (SMSDOM) 8.0.x scans a file attachment with a % (percent sign) in the filename, the Domino server crashes.
This issue has been resolved in version 8.0.3.50 and higher. If you are experiencing this issue, please upgrade to the latest version of Symantec Mail Security for Domino.