correct way to prevent SPF failures
- by Sean Kimball
I have a website on a hosted server whose mail users are using their ISPs SMTP to send mail.
I have set their SPF record to look like this:
v=spf1 mx a:comcast.net ip4:216.70.103.0/24 ip4:216.70.101.0/24 ip4:76.96.53.0/24 -all
the SMTP host is comcast.net, 76.96.53.0/24 is the ip range they get assigned from.
ip4:216.70.103.0/24 ip4:216.70.101.0/24 are the two possible SMTP ranges they could get IF they used their hosting account mail servers [media temple]
They are still getting SPF errors, any idea why?