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

SPF Record Generator

Create a valid v=spf1 DNS record for your domain to authorize legitimate email senders.

About SPF Record Generator

An Sender Policy Framework (SPF) record is a type of DNS TXT record that specifies which mail servers are permitted to send email on behalf of your domain name. Implementing SPF prevents email spammers from forging your domain address.

How to Use This Tool:
  • Enter your root domain name (e.g., domain.com).
  • Select whether to allow your main domain MX and A records.
  • Add additional outgoing IP addresses or 3rd party includes (e.g. Google Workspace, SendGrid).
  • Copy the generated record and add it as a TXT record in your DNS provider.
Frequently Asked Questions

Without an SPF record, receiving inbox providers like Gmail and Yahoo cannot verify if your emails are authentic, significantly increasing the chances of your emails landing in Spam.

No! A domain must only have ONE SPF record. Multiple SPF records cause permanent lookup errors (PermError). Merge all includes into a single record.

Need High-Volume Email Infrastructure?

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

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