Links


Teste de DNS reverso
http://www.dnsstuff.com/
http://www.terra.com.br/postmaster/reverso.cgi
http://www.plugin.com.br/?pag=postmaster

Lista de IP
http://www.iana.org
http://www.iana.org/assignments/port-numbers
http://www.iana.net/assignments/ipv4-address-space


Lista anti-span
www.ordb.org
www.spamcop.net