Domains with DNS TXT v=spf1 a mx include:_spf.voip-system.nl include:_spf.dns365.nl -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.voip-system.nl include:_spf.dns365.nl -all.
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.voip-system.nl include:_spf.dns365.nl -all.