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There is 1 domain that have DNS TXT set to v=spf1 ip4:66.55.143.243 include:spf.constantcontact.com include:sendgrid.net include:amazonses.com include:zohomail.com ~all.

Top Domains with TXT set to v=spf1 ip4:66.55.143.243 include:spf.constantcontact.com include:sendgrid.net include:amazonses.com include:zohomail.com ~all