qmail com probs

meu servidor nao esta mandado e-mail men recebendo que isso..fica dano esse erro..antes estava tudo ok...

Antes estava tudo ok..agora esta com pau nao manda e-mail men recebe
quando bou mandar da esse erro..ai
Oct 8 20:22:27 darkstar X-Qmail-Scanner-1.23: [darkstar1097277747482645] clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem - exit status 512/2
Oct 8 20:24:50 darkstar X-Qmail-Scanner-1.23: [darkstar1097277890482699] clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem - exit status 512/2
Oct 8 20:27:56 darkstar X-Qmail-Scanner-1.23: [darkstar1097278076482774] clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem - exit status 512/2
Oct 8 20:34:01 darkstar X-Qmail-Scanner-1.23: [darkstar1097278441482814] clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem - exit status 512/2