Symantec Mail Security for Microsoft Exchange (SMSMSE) does not quarantine messages detected as spam.
Messages detected as spam by the Symantec Premium AntiSpam (SPA) component of SMSMSE are not put in the SMSMSE quarantine.
SMSMSE is working as designed. Quarantine is used for files that contain a virus or rule violations. Files detected as spam are rejected or accepted.
To set Premium AntiSpam Actions:
The document, ‘Overview of Premium AntiSpam in Symantec Mail Security for Microsoft Exchange’ includes information about configuring Symantec Premium AntiSpam.