Exibir código-fonte para SPF

check-auth@verifier.port25.com
 
 
"v=spf1 include:aspmx.googlemail.com ~all"
 
 
"v=spf1 a mx ~all"
 
"v=spf1 a mx ip4:seu-ip ~all"
"v=spf1 a mx ip4:104.131.231.178 include:aspmx.googlemail.com ~all"

http://www.meuspf.com/check
http://mxtoolbox.com/spf.aspx
http://www.meuspf.com/
http://www.blogdohost.com.br/como-criar-um-registro-spf/
http://www.antispam.br/admin/spf/
https://support.google.com/mail/answer/81126
https://support.google.com/mail/contact/msgdelivery