A simple SPF Lookup tool for any given domain , as result you get list of spf records.
please read the term of use above carrefully before using this tools.
SPF (stands for Sender Policy Framework) lets you designate via DNS which specific email servers are allowed to send email from your domain. An antispam SPF filter works by looking up the sending email server against the SPF records in the DNS of the domain specified by the email’s From address..
The purpose of an SPF record is to detect and prevent spammers from sending messages with forged From addresses on your domain.