Domains with DNS TXT v=spf1 a mx a:smtp-relay-int.realworks.nl include:_spf.realworks.nl -all

There is 1 domain that have DNS TXT set to v=spf1 a mx a:smtp-relay-int.realworks.nl include:_spf.realworks.nl -all.

Top Domains with TXT set to v=spf1 a mx a:smtp-relay-int.realworks.nl include:_spf.realworks.nl -all