Domains with DNS TXT v=spf1 include:_netblocks.mimecast.com include:spf.zixsmbhosted.com ~all

There are 19 domains that have DNS TXT set to v=spf1 include:_netblocks.mimecast.com include:spf.zixsmbhosted.com ~all. The top 19 records ordered by domain rank are listed below.