Domains with DNS TXT v=spf1 include:optinet.be include:_spf.telenet-ops.be -all
There is 1 domain that have DNS TXT set to v=spf1 include:optinet.be include:_spf.telenet-ops.be -all.
There is 1 domain that have DNS TXT set to v=spf1 include:optinet.be include:_spf.telenet-ops.be -all.