please is anyone able to help with this message I have scanned by nothing is coming up have no idea what to do cannot send mail out at all…it appears I have an infection I think
554 nschwcmgw06p BigPond Outbound [OB105. Connection refused. 138.130.244.146 is listed on the Exploits Block List (XBL). Please visit http://www.spamhaus.org/xbl/ for more information.