New posts in Spf

Is using SOFTFAIL over FAIL in the SPF record considered best practice?

set Google Apps SPF record in Amazon AWS Route 53

Do SPF Records For Primary Domain apply to subdomains?

Are SPF needed for domains that do not send mails and do not have MX record?

How to include multiple domains in an spf TXT Record

SPF include vs redirect

SPF hardfail and DKIM failure when recipient has e-mail forwarding

Permerror when testing multiple SPF records for Google Apps and MailChimp

Why is google.com trying to send emails from my domain?

DMARC: SPF Fail, DKIM Pass, Source IP: not mine!