Exchange 2007 on sbs 2008
will receive new email under 13 lines long, but not replies forwards of email with more than 13 lines of text.
Have uninstalled and reinstall the antispam agent, marked it as on and then off, only the successfully delivered emails get logged in the scl log. in C:\Program Files\Microsoft\Exchange Server\TransportRoles\Logs\
Have contacted my normal tech support contacts but have had no fix .