Commercial scanner clamav timed out!

[Wilson Kwok]

Hello,
   
  Environment: postfix-2.2.10-1.1.el4 + MailScanner-perl-MIME-Base64-3.05-5
+ clamav-0.90.3-1.el4.rf + spamassassin-3.2.1-1.el4.rf

  MailScanner always sent logs, can anyone help me ?

   
  Log here:
   
  Jul  6 11:36:39 mailgateway MailScanner[20662]: Commercial scanner clamav timed out!
Jul  6 11:36:39 mailgateway MailScanner[20662]: clamav: Failed to complete, timed out
Jul  6 11:36:39 mailgateway MailScanner[20662]: Virus Scanning: Denial Of Service attack detected!
Jul  6 11:37:30 mailgateway MailScanner[20659]: Commercial scanner clamav timed out!
Jul  6 11:37:30 mailgateway MailScanner[20659]: clamav: Failed to complete, timed out
Jul  6 11:37:30 mailgateway MailScanner[20659]: Virus Scanning: Denial Of Service attack detected!
Jul  6 11:38:34 mailgateway MailScanner[20121]: Commercial scanner clamav timed out!
Jul  6 11:38:34 mailgateway MailScanner[20121]: clamav: Failed to complete, timed out
Jul  6 11:38:34 mailgateway MailScanner[20121]: Virus Scanning: Denial Of Service attack is in message 80B8741821F.81DD6
Jul  6 11:38:34 mailgateway MailScanner[20121]: Infected message 80B8741821F.81DD6 came from 200.86.17.36
Jul  6 11:39:44 mailgateway MailScanner[20428]: Commercial scanner clamav timed out!
Jul  6 11:39:44 mailgateway MailScanner[20428]: clamav: Failed to complete, timed out


       
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