Domains with DNS TXT v=spf1 include:sendgrid.net include:servers.mcsv.net include:_custspf.one.com include:_spf.google.com include:_spf.gatewayapi.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:sendgrid.net include:servers.mcsv.net include:_custspf.one.com include:_spf.google.com include:_spf.gatewayapi.com -all.