Domains with DNS TXT v=spf1 include:_spf.yourfilter.nl include:sparkpostmail.com ~all

There is 1 domain that have DNS TXT set to v=spf1 include:_spf.yourfilter.nl include:sparkpostmail.com ~all.

Top Domains with TXT set to v=spf1 include:_spf.yourfilter.nl include:sparkpostmail.com ~all