Domains with DNS TXT v=spf1 ip4:109.71.54.15 ip4:159.100.83.251 include:relay.mailchannels.net include:sendersrv.com -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:109.71.54.15 ip4:159.100.83.251 include:relay.mailchannels.net include:sendersrv.com -all.