Record Builder

Build DMARC and SPF records for your domain. Configure each setting and copy the generated record to your DNS.

yourdomain.com TXT

v=spf1 ~all

Domain Mechanisms

Allow sending from your domain's own DNS records.

a — Allow IPs from this domain's A record mx — Allow this domain's MX servers

Default Policy (all)

What to do with senders not matching any mechanism.

Include Domains

Third-party services authorized to send email. One per line. Each counts as a DNS lookup.

IPv4 Addresses / Ranges

Explicit IPs or CIDR ranges. One per line.

IPv6 Addresses / Ranges

Explicit IPv6 addresses or CIDR ranges. One per line.