Domains with DNS TXT v=spf1 +a +mx +ip4:192.190.220.242 include:relay.mailchannels.net include:_spf.smtp.com ~all
There is 1 domain that have DNS TXT set to v=spf1 +a +mx +ip4:192.190.220.242 include:relay.mailchannels.net include:_spf.smtp.com ~all.