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Deliverability Configurator

SPF, DKIM & DMARC Generator

Configure your domain's DNS identity in seconds. Prevent your emails from landing in spam by generating precise authentication records for any email provider.

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Output Records

Ready to Secure Your Domain

Enter your domain and select a provider to generate your professional SPF, DKIM, and DMARC configuration records.

Understanding Email Authentication (SPF, DKIM, DMARC)

Modern email deliverability is built on trust. When you send an email, server-side filters at Gmail and Outlook ask one question: "How do I know this sender is who they say they are?" Without SPF, DKIM, and DMARC, your domain has no identity, and your emails are treat as potential phishing attacks or spam.

SPF (Sender Policy Framework)

SPF is a simple TXT record in your DNS that lists exactly which servers (IP addresses or providers) are allowed to send emails on behalf of your domain. It prevents others from spoofing your "From" address.

DKIM (DomainKeys Identified Mail)

DKIM adds a cryptographic digital signature to your email headers. This "seal" proves that the email was actually sent by your domain and hasn't been tampered with while traveling across the internet.

DMARC (Domain-based Messaging)

DMARC is the "instruction manual" for email providers. If an email fails SPF or DKIM, DMARC tells the receiving server whether to ignore the failure, put the email in spam, or reject it entirely.

Why Cold Emailers Need a 100% Valid Score

If you are doing B2B outreach, your volume is higher than a typical individual. This makes you a target for "Aggressive Spam Filtering." If even one of these three records is missing or misconfigured:

  • Open rates will plummet: Your emails will be delivered directly to the 'Spam' or 'Promotions' folder.
  • Domain Blacklisting: Persistent authentication failures will cause your domain to be flagged by Spamhaus or Google.
  • Infrastructure Failure: Tools like Instantly, Lemlist, or LeadNexus rely on these records to maintain high-velocity inbox density.

Frequently Asked Questions

What is the difference between SPF, DKIM, and DMARC? +
SPF (Sender Policy Framework) lists the IP addresses and domains authorized to send mail on your behalf. DKIM (DomainKeys Identified Mail) provides a digital signature that proves the email wasn't tampered with. DMARC (Domain-based Message Authentication, Reporting, and Conformance) tells the receiving server what to do if SPF or DKIM fails.
Do I really need all three records? +
Yes, especially starting in 2024, major providers like Google and Yahoo have made these authentication protocols mandatory for bulk senders. Missing even one of these can cause your emails to be immediately rejected or sent to the spam folder.
Does DMARC 'p=none' protect my domain? +
A DMARC policy of p=none is used for monitoring and reporting. It doesn't actually stop unauthorized emails from being delivered. To fully protect your reputation, you should aim to move to p=quarantine or p=reject once you've verified all your legitimate sending sources.
Will this fix my emails going to spam? +
DNS records are the first and most critical step, but they aren't the only factor. Your email content (spam words), sending volume (warm-up), and sender reputation also play huge roles. However, without these DNS records, even the best email content will fail.

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