Domains with DNS TXT v=spf1 ip4:185.66.143.19 include:relay.mailchannels.net include:spf.runbox.com -all

There is 1 domain that have DNS TXT set to v=spf1 ip4:185.66.143.19 include:relay.mailchannels.net include:spf.runbox.com -all.

Top Domains with TXT set to v=spf1 ip4:185.66.143.19 include:relay.mailchannels.net include:spf.runbox.com -all