Domains with DNS TXT v=spf1 include:seznam.cz include:spf.mailjet.com include:spfa.fakturownia.pl include:sendgrid.net include:_emailing.heureka.cz ~all

There is 1 domain that have DNS TXT set to v=spf1 include:seznam.cz include:spf.mailjet.com include:spfa.fakturownia.pl include:sendgrid.net include:_emailing.heureka.cz ~all.

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