Domains with DNS TXT v=spf1 include:us._netblocks.mimecast.com +include:_spf.psm.knowbe4.com +include:servers.mcsv.net +include:spf.protection.outlook.com +include:mailgun.org +include:_spf.bigcommerce.com +include:relay.mailchannels.net ~all

There is 1 domain that have DNS TXT set to v=spf1 include:us._netblocks.mimecast.com +include:_spf.psm.knowbe4.com +include:servers.mcsv.net +include:spf.protection.outlook.com +include:mailgun.org +include:_spf.bigcommerce.com +include:relay.mailchannels.net ~all.

We're currently tracking 375,640,409 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.