Public Email Inspection

Inspect one real email end to end.

Start an anonymous test, get a one-time recipient address, send a message from the platform you want to check, and review authentication, DNS, MIME, rendering, and SMTP session evidence in one report.

Start a New Test

Example Address pink.skinny.guitar@mxtoolbox.mxcentral.net

Retention Reports remain revisit-able only inside the configured retention window.

What You Get

Summary results for SPF, DKIM, DMARC, BIMI, TLS, and message structure.
Dedicated pages for headers, raw source, DNS trace, MIME, unsubscribe, and SMTP session evidence.
Safe HTML preview with images and links removed, plus a separate plain-text rendering page.

How It Works

Create a fresh anonymous session and copy the generated test address.
Send one email from the provider or platform you want to inspect.
Wait for the report to complete, then dive through the sections as needed.

Frequently Asked Questions

How does MXToolbox work?

MXToolbox creates an anonymous session, generates a one-time recipient address, waits for you to send a real email to that address, and then builds a report from the captured message and related DNS evidence.

What does the report include?

The report includes authentication checks such as SPF, DKIM, DMARC, and BIMI, plus headers, DNS trace, MIME structure, raw source redaction, HTML preview safety handling, and SMTP session evidence.

Do I need an account to use it?

No. MXToolbox is intentionally anonymous and token-based. There are no user accounts, shared inboxes, or permanent workspaces.

Are email contents stored permanently?

No. Reports and related evidence are retained only for a short configured window, and access is limited to possession of the unguessable session token.