Domains with DNS TXT v=spf1 mx:calypso.singular.de ip4:136.243.155.135 ip6:2a01:4f8:171:1e05::2 ~all

There are 11 domains that have DNS TXT set to v=spf1 mx:calypso.singular.de ip4:136.243.155.135 ip6:2a01:4f8:171:1e05::2 ~all. The top 11 records ordered by domain rank are listed below.

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