Sites to Check if your IP address is in Black list

(1) Mxtoolbox

(2) Whatismyipaddress

(3) Blacklistalert

(4) Dnsbl

(5) IP-blacklist

(6) Blacklistmaster

(7) Find-ip-address

(8) Spamcop

(9) Debouncer

(10) Blacklist-ip