Free Email Deliverability Tools

Everything you need to diagnose, fix, and monitor your domain's email authentication. All tools are free.

Available Tools

• Domain Scanner — Check SPF, DKIM, DMARC, MX records and blacklist status. Get an A-F grade with fix instructions.
• DNS Record Generator — Select your email providers, generate exact SPF and DMARC records to copy-paste into your DNS.
• Email Header Analyzer — Paste raw email headers to see SPF, DKIM, DMARC authentication results and delivery hops.
• SPF Record Tree Visualizer — See the full SPF include chain for any domain with DNS lookup counts at each level.
• DMARC Report Analyzer — Upload DMARC aggregate reports to identify who sends email as your domain.
• Setup Guides — Step-by-step SPF, DKIM, DMARC guides for 55+ email providers and hosting platforms.

Why Email Authentication Matters

Since February 2024, Google, Yahoo, and Microsoft require SPF, DKIM, and DMARC for all email senders. Domains without proper authentication see emails go to spam or get rejected entirely. These free tools help you check your current setup, generate the right DNS records, and monitor for problems.

Scan your domain now to get your email deliverability grade.