Email with attachment caused 100% CPU usage.

[Mark London]

Hi - We received an email with several large postscript attachments,  
and the content type was "text/plain".   This caused our spamassassin 
server to use up 100% CPU, parsing the attachments as text.   I 
temporarily disabled spam scanning to allow the message to go through.   
How can I prevent this in the future?   I know about the time limit 
feature, but this doesn't prevent the server from running 100% of the 
time, before the time limit is reached. Any suggestions?  Thanks. - Mark

Content-Transfer-Encoding: base64
Content-Type: text/plain;
 name=OTBW_3D_256_ngtot100_de03_coll_dissip_1248.ps
Content-Disposition: attachment;
 filename=OTBW_3D_256_ngtot100_de03_coll_dissip_1248.ps