SPF Record Builder

Build an SPF TXT record from common include / ip4 / ip6 / mx mechanisms.

include: (comma-separated)ip4: (comma-separated)ip6: (comma-separated)a — allow sender's A recordmx — allow sender's MX recordPolicy

Result

SPF TXT record:
v=spf1 a mx include:_spf.google.com ~all

DNS:
yourdomain.com.  IN  TXT  "v=spf1 a mx include:_spf.google.com ~all"

Length: 40 chars (DNS UDP limit is 255 per string; longer records must be split into multiple chunked strings).

About this tool

Build an SPF TXT record from common include / ip4 / ip6 / mx mechanisms.