The following lines were added (+) and removed (-):
Mail Exchanger (MX records) then uses the DNS to check that mail from a given domain is being sent by a host sanctioned by that domain's administrators.Mail Exchanger (MX records) then uses the DNS to check that mail from a given domain is being sent by a host sanctioned by that domain's administrator. You set up SPF in your domain name at the DNS server. Create a TXT entry in the DNS records of your domain. "v=spf1 a include:_spf.crap.com ip4:123.45.67.8 -all"