Free Email Authentication Tools

Generate SPF and DMARC records, check DKIM configuration, and lookup MX records. All tools are free and help you secure your email infrastructure.

SPF Record Generator

Generate an SPF (Sender Policy Framework) record to authorize mail servers to send email on behalf of your domain.

Domain

Include Separate multiple includes with commas

A Record

MX Record

IPv4 Addresses Separate multiple IPs with commas

Policy

Generate a DMARC (Domain-based Message Authentication) record to protect your domain from email spoofing.

Domain

Policy

Subdomain Policy

Percentage Percentage of messages to apply policy to

Aggregate Reports Email

Forensic Reports Email

DKIM Alignment

SPF Alignment

Check if your SPF (Sender Policy Framework) record is properly configured in DNS.

Domain

Check if your DKIM (DomainKeys Identified Mail) record is properly configured in DNS.

Domain

Selector Common selectors: default, google, mail, dkim

Lookup MX (Mail Exchange) records for any domain to see which mail servers handle email delivery.

Domain

Check if a domain has a DMARC record configured and view its policy settings.

Domain