Domains with DNS TXT v=spf1 include:spf1.wittenburg.nl include:spf2.wittenburg.nl include:spf3.wittenburg.nl -all

There is 1 domain that have DNS TXT set to v=spf1 include:spf1.wittenburg.nl include:spf2.wittenburg.nl include:spf3.wittenburg.nl -all.

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