Domains with DNS TXT v=spf1 include:_spf.websupport.cz include:spf.mandrillapp.com a:sendgrid.net include:sparkpostmail.com include:_spf.cloud404.cz a mx ~all

There is 1 domain that have DNS TXT set to v=spf1 include:_spf.websupport.cz include:spf.mandrillapp.com a:sendgrid.net include:sparkpostmail.com include:_spf.cloud404.cz a mx ~all.

Top Domains with TXT set to v=spf1 include:_spf.websupport.cz include:spf.mandrillapp.com a:sendgrid.net include:sparkpostmail.com include:_spf.cloud404.cz a mx ~all