On Sun, 3 Oct 2004 12:00:51 -0700, Potato Chip wrote > It's happened to me about 3 times, where an email will be sent to my > server that specifically causes the problem. Killing the spamd process > causes the sending MTA to resend. It usually occurs with an email > with a large MIME attachment. In the last occurrence, the attachment > was around 20MB and was only a .TXT attachment. The sending MTA will > resend its Scud missle and I'll see the 250MB spamd process using up > all available CPU.
I've seen this problem. I avoid it by bypassing SpamAssassin for all mail larger than 1 megabyte. Very little spam is this large, since it'd be inefficient to send.