Domains with DNS TXT v=spf1 include:us._netblocks.mimecast.com include:_spf.sendergen.com include:sendgrid.net ip4:143.170.71.74 include:spf.protection.outlook.com include:spf.constantcontact.com include:_spf.act-on.net include:8642978.spf08.hubspotemail.net ~all

There are 7 domains that have DNS TXT set to v=spf1 include:us._netblocks.mimecast.com include:_spf.sendergen.com include:sendgrid.net ip4:143.170.71.74 include:spf.protection.outlook.com include:spf.constantcontact.com include:_spf.act-on.net include:8642978.spf08.hubspotemail.net ~all. The top 7 records ordered by domain rank are listed below.

We're currently tracking 312,336,511 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.