Hi,
Administering Symantec Messaging Gateway through the command line
http://www.symantec.com/business/support/index?page=content&id=HOWTO53796
http://www.symantec.com/business/support/index?page=content&id=DOC6821
http://www.symantec.com/business/support/index?page=content&id=DOC3737
http://www.symantec.com/business/support/index?page=content&id=TECH206492
http://www.symantec.com/business/support/index?page=content&id=TECH195670