connect.com.au contact?

NetBSD.ORG's trouble-ticket system is currently being overwhelmed by a virus attack facilitated by connect.com.au (which is bouncing viral mail to forged From: addresses corresponding to trouble tickets at NetBSD.ORG). We don't want to have to dump all mail from connect.com.au; they seem to have real users (some of whom participate in our mailing lists). Does anyone have a contact there who might be able to correct the dumb behaviour of their mail system?