im also worried it may be one of our competitors, we're taking one of them to court and lately they have emailed us a few viruses and etc.
here are the details norton has given me
inetnum: 211.28.0.0 - 211.31.255.255
netname: OPTUSINTERNET-AU
descr: OPTUS INTERNET - RETAIL
descr: INTERNET SERVICES
descr: Chatswood, Sydney
country: AU
admin-c: OI3-AP
tech-c: OI3-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-AU-OPTUSINTERNET
status: ALLOCATED PORTABLE
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
remarks: This object can only be updated by APNIC hostmasters.
remarks: To update this object, please contact APNIC
remarks: hostmasters and include your organisation's account
remarks: name in the subject line.
remarks: -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
changed: [email protected] 20040316
source: APNIC
% APNIC database, last updated 20050925 23:00:32
Edited by BTPH, 14 November 2005 - 02:30 AM.