Free DNS helpers

SPF record generator

Build a starting v=spf1 record. Test in staging before you publish—SPF has a 10-DNS-lookup limit.

IPv4 (one per line or comma-separated)

IPv6 (one per line or comma-separated)

Include domains (e.g. _spf.google.com)

Optional mechanismsa (domain A record)mx

Default for all other senders

Generated record

v=spf1 ~all