ipaddress is blocked

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.

Your IP comes up on 6 blacklists Here http://whatismyipaddress.com/blacklist-check

here is one result

CBL

http://cbl.abuseat.org/lookup.cgi?ip=138.130.244.146&.pubmit=Lookup
IP Address 138.130.244.146 is listed in the CBL. It appears to be infected with a spam sending trojan, proxy or some other form of botnet.

It was last detected at 2013-11-14 07:00 GMT (+/- 30 minutes), approximately 7 hours, 30 minutes ago.

This IP address is infected with, or is NATting for a machine infected with Torpig, also known by Symantec as Anserin.

if you want to check Your computer(s) for malware… Follow The logs to assist in cleaning malware guide at top in This forum section

attach logs from Malwarebytes / OTL / aswMBR

Have done what you suggested but it is still there now what please

done what… i dont see any logs attached?