Free yourself from SPF limits
proSPF dynamically flattens your SPF record, leaving you in complete control
proSPF’s DNS servers are hosted on Microsoft Azure and Google Cloud Platform – so they’re geographically dispersed and run a high performance version of BIND9 from the ISC.
We read the value of prospf.yourdomain.com every hour, run it through the proSPF flattening engine, and immediately update your SPF record on our servers.
We run a high performance, highly secure version of BIND9 from the ISC, with low TTL values for your SPF record. So any changes you make will be picked up quickly.