Domains with DNS TXT v=spf1 a mx ip4: 46.21.103.187 include: _custspf.one.com ~ all

There is 1 domain that have DNS TXT set to v=spf1 a mx ip4: 46.21.103.187 include: _custspf.one.com ~ all.

Top Domains with TXT set to v=spf1 a mx ip4: 46.21.103.187 include: _custspf.one.com ~ all