Rbl checker - Version 0.01 check your proxies if they are blacklisted in :en.spamhaus.org , bl.spamcop.net , cbl.abuseat.org , bl.spamcop.net , sbl.spamhaus.org, blackholes.five-ten-sg.com ,dnsbl.sorbs.net, bl.spamcannibal.org ,dnsbl-1.uceprotect.net, dnsbl-2.uceprotect.net, dnsbl-3.uceprotect.net