Domains with DNS TXT v=spf1 include:_spf.google.com a:mail.certlibrary.com a:mailerhost.info include:sendersrv.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.google.com a:mail.certlibrary.com a:mailerhost.info include:sendersrv.com -all.