Domains with DNS TXT v=spf1 a mx include:_spf.powermail.be include:sendgrid.net include:_spf.relay.mailprotect.be ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.powermail.be include:sendgrid.net include:_spf.relay.mailprotect.be ~all.