AuthEmailTest.comInbound Email Authentication Test

Use

Use this service only for domains, mail systems, and messages you are authorised to test. Do not use it to test, probe, monitor, or collect information about third-party systems without permission. Test addresses are temporary, accept one message only, and are not mailboxes. They must not be used for subscriptions, account signups, forwarding tests, bulk delivery, or any purpose other than a single diagnostic message.

Message Content

Send a message with a From header, subject, and body. For deeper spam filter analysis, send the actual message you are sending rather than forwarding it. Do not send confidential, sensitive, regulated, privileged, or personal content beyond what is needed to diagnose authentication. Messages larger than the configured limit are rejected by the SMTP receiver; the current limit is 1 MB including headers and body.

Stored Data

Messages accepted for diagnostics are stored for analysis and short-term review. Stored data may include the raw message, message headers, sending IP address, SMTP HELO name, envelope sender, recipient test address, DKIM signatures, authentication analysis, spam-filter scores and rule matches, timestamps, and the email address entered when the test was created. Raw messages are retained only for the configured diagnostic retention period and may be removed sooner when you delete a result or during maintenance.

Privacy

AuthEmailTest.com is designed for short-lived inbound email authentication diagnostics. This section explains what is processed when you create a test, send a diagnostic message, or use the contact form.

Diagnostic Tests

When you create a test we store the email address you say you will send from, the generated test address, the creation time, expiry time, requester IP address, and sender-domain pre-check results. When a message arrives we store SMTP session details, authentication analysis, and spam-filter analysis, including connecting IP, HELO name, envelope sender, recipient address, message hash, headers, DKIM signatures, SPF result, DMARC alignment, scanner scores, actions, and rule matches.

Message Content

Accepted diagnostic messages are stored so the service can analyse and display the inbound result. Messages are also scanned by Rspamd and SpamAssassin to provide spam-filtering diagnostic scores. For deeper spam filter analysis, send the actual message you are sending rather than forwarding it. Avoid confidential, sensitive, regulated, privileged, or unnecessary personal content. Messages over 1 MB, including headers and body, are rejected.

Retention

Generated addresses are short-lived and accept one message only. Result pages and stored diagnostic data are retained for the configured retention period, currently 7 days, and cleanup jobs remove expired data. A completed report also includes a delete option that removes the stored diagnostic result before normal expiry. Operational reports may include aggregate counts such as tests created, messages received, queue status, scanner status, DNSBL/RBL query-blocking notices, service status, and disk usage.

Contact Form

If you use the contact form, we process the name, email address, subject, message, requester IP address, and submission time so we can receive and respond to your message. Contact submissions are stored before delivery is attempted, and may be retried if email delivery is temporarily unavailable.

Service Providers

Form submissions are checked using Cloudflare Turnstile for spam prevention. Contact form messages and operational reports are sent using the AuthSMTP email service. Those providers may process technical request data and message content as part of delivering, protecting, and securing the service.

Security and Abuse Prevention

We use short-lived random addresses, one-message acceptance, request limits, recipient validation, message-size limits, Rspamd and SpamAssassin scanning, cleanup jobs, Cloudflare protection, and firewall rules to reduce abuse and protect the service. We may reject, block, rate-limit, remove, or investigate activity that appears abusive, automated, unauthorised, or outside the intended diagnostic purpose.

Questions

If you have a privacy question about AuthEmailTest.com, please contact us.

Abuse Prevention

The service uses short-lived random test addresses, one-message acceptance, Turnstile verification, request limits, recipient validation, message-size limits, Rspamd and SpamAssassin scanning, and cleanup jobs to reduce abuse. We may reject, rate-limit, block, or remove tests that appear automated, abusive, unauthorised, or outside the intended diagnostic purpose.

Disclaimer

Results are diagnostic guidance only. They show how our servers and spam scanners saw one message at one point in time, not how every mailbox provider, security gateway, spam filter, or recipient will treat your mail. Results are not a guarantee of delivery, filtering, inbox placement, security, compliance, or policy outcome. Validate findings carefully before changing DNS, mail routing, DKIM signing, SPF records, DMARC policy, or production mail infrastructure.

No Warranty

The service is provided on an as-is and as-available basis. It may be changed, limited, unavailable, or withdrawn without notice. To the maximum extent permitted by law, no warranty is given that the service will be uninterrupted, error-free, complete, or suitable for any particular purpose.