AUTHPROBLEM.comEmail Authentication Analysis

Disclaimer

This combined email authentication checker is for SPF, DKIM, and DMARC troubleshooting support only. Results are based on DNS records visible at lookup time and may differ from how a specific mailbox provider evaluates a particular message.

The combined view is intended to highlight relationships between SPF, DKIM, and DMARC, but it cannot see every sending system, mail flow, forwarding path, or provider-specific behaviour.

Before making DNS or email authentication changes, independently verify the SPF, DKIM, and DMARC results and obtain approval from your relevant IT, DNS, and email administrators.

Incorrect SPF, DKIM, or DMARC configuration can cause email delivery problems and may result in messages being blocked, rejected, or filtered as suspicious.

We aim to keep the site accurate and available, but we do not guarantee uninterrupted access, error-free operation, or compatibility across every browser and device at all times.

Form submissions are checked using Cloudflare Turnstile for spam prevention and contact form submissions are processed using the AuthSMTP email service provider. Those providers may process technical request data as part of delivering and securing the service.

Use of this site is at your own discretion and risk. External services used by the site, including security or email providers, may affect availability or functionality from time to time.