Domains with DNS TXT v=spf1 a mx a:spf.flexfilter.nl ip6:2a05:1500:600:10:1c00:c3ff:fe00:3d7b -all

There are 4 domains that have DNS TXT set to v=spf1 a mx a:spf.flexfilter.nl ip6:2a05:1500:600:10:1c00:c3ff:fe00:3d7b -all. The top 4 records ordered by domain rank are listed below.

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