Domains with DNS TXT v=spf1 a ip4:185.104.16.21 ip6:2a00:f740:100::15:1 include:spf.mandrillapp.com include:sendgrid.net include:emailsrvr.com -all
There is 1 domain that have DNS TXT set to v=spf1 a ip4:185.104.16.21 ip6:2a00:f740:100::15:1 include:spf.mandrillapp.com include:sendgrid.net include:emailsrvr.com -all.