Full Email Infrastructure Suite

Email Record Generators & DNS Diagnostics

Instantly generate SPF, DMARC, and DKIM key pairs (Private + Public) or perform real-time DNS & blacklist checks.

Record Generators
SPF Generator Build custom v=spf1 records
DMARC Generator Build v=DMARC1 compliance rule
DKIM Key Pair Generator Generate Private & Public RSA Keys
Live Lookup & Diagnostics
SPF Lookup Verify sender policy framework
DMARC Checker Inspect domain auth policies
DKIM Lookup Query public key records
MX Records Lookup Check mail exchange routing
IP Blacklist Checker Multi-DNSBL real-time check
Reverse DNS (PTR) Resolve IP hostnames
Email Header Analyzer Extract hop paths & auth results
Disposable Email Check Detect temp email addresses

DMARC Policy Generator

Build a custom v=DMARC1 DNS record to control inbox authentication policies and protect brand domain authority.

About DMARC Policy Generator

Domain-based Message Authentication, Reporting, and Conformance (DMARC) relies on SPF and DKIM authentication to give domain owners full control over unauthenticated emails sent from their domain.

How to Use This Tool:
  • Specify your root domain.
  • Choose an enforcement policy: p=none (monitoring), p=quarantine (spam folder), or p=reject (block).
  • Provide aggregate report emails (rua) to receive daily diagnostic reports.
  • Add the resulting string as a TXT record at _dmarc.yourdomain.com.
Frequently Asked Questions

Start with p=none. This policy allows you to collect diagnostic reporting without blocking legitimate emails while you fix SPF and DKIM alignments.

You must create a TXT record with the Host name strictly set to _dmarc (or _dmarc.yourdomain.com depending on your DNS host).

Need High-Volume Email Infrastructure?

We deploy high-deliverability SMTP servers, PowerMTA setups, custom DNS authentications, and IP warmups.

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