Domains with DNS TXT v=spf1 a mx ip4:221.121.157.238 ip4:221.121.157.231 ip4:194.195.251.121 include:mail.smtp2go.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:221.121.157.238 ip4:221.121.157.231 ip4:194.195.251.121 include:mail.smtp2go.com ~all.