Free yourself from SPF limits

proSPF dynamically flattens your SPF record, leaving you in complete control

Fast

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.

Up-to-date

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.

Trusted

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.