IP y red

BIMI, MTA-STS & TLS-RPT Checker

Your brand logo in inboxes (BIMI), enforced encryption for inbound mail (MTA-STS) and TLS failure reports (TLS-RPT) — all checked in one run.

Datos clave

BIMI check online: enter a domain (and a selector if it is not default) and see the BIMI record, a logo preview, SVG and VMC/CMC certificate checks, plus MTA-STS and TLS-RPT. Free, no sign-up. We read public records and files; whether a mail client shows the logo is not up to us.

Precio: Gratis
Registro: No necesario
Procesamiento: On our server: DNS queries; over HTTPS (SSRF-guarded, no redirects) we fetch only the MTA-STS policy, the SVG logo and the PEM certificate
Entrada: A domain and, if needed, a BIMI selector (default: "default")
Límites: 8 checks per minute, no daily cap; files: policy up to 64 KB, logo up to 1 MB, certificate up to 256 KB
Resultado: Three sections: BIMI (record, logo preview, SVG checks, VMC/CMC certificate, DMARC), MTA-STS (TXT, policy, MX vs patterns), TLS-RPT; what to fix
Última actualización: 2026-10-26

Código abierto en GitHub

Ejecuta la misma comprobación en tu propio equipo: una herramienta de línea de comandos de Node.js, una biblioteca y una GitHub Action. Código abierto con licencia MIT.

ksanyok/bimi-checker

BIMI, MTA-STS and TLS-RPT checker

This tool checks three mail standards that go beyond SPF, DKIM and DMARC in one run. BIMI: the TXT record, the SVG logo (basic SVG Tiny PS profile rules), the VMC or CMC mark certificate and the required DMARC p=quarantine or p=reject. MTA-STS: the _mta-sts TXT record, the HTTPS policy file and whether your MX hosts match its patterns. TLS-RPT: the _smtp._tls record and its report addresses. Free, no sign-up.

BIMI: record, logo preview, basic SVG Tiny PS checks

VMC/CMC certificate: expiry, owner, BIMI key usage, domain in SAN

MTA-STS: TXT, policy file, mode, max_age, MX vs patterns

TLS-RPT and the DMARC requirement for BIMI

Cómo usar

Enter the domain you send mail from
Only set a BIMI selector if yours is not "default"
Fix the errors section by section: BIMI, MTA-STS, TLS-RPT

FAQ

BIMI (Brand Indicators for Message Identification) shows a brand logo next to a message in supporting mail clients. It needs DMARC at quarantine or reject, an SVG logo and usually a VMC/CMC certificate.

Enter the domain: we query the TXT at default._bimi (or your selector), show the logo and check the SVG, the certificate and DMARC.

MTA-STS makes senders deliver to your MX only over TLS, and TLS-RPT sends reports about encryption problems. We check both records and the policy file.

Many providers require a VMC or CMC to show the logo; we show whether a certificate is found and valid.

8 checks per minute, no sign-up and no daily limit.

PromoPilot frente a alternativas: comparación

Comparamos solo lo que está confirmado en las páginas de cada servicio. Donde no pudimos confirmar un dato, la celda muestra "—".

Parámetro	PromoPilot	MxToolbox BIMI Lookup	BIMI Group BIMI Inspector	EasyDMARC BIMI Lookup
BIMI check: record, SVG, VMC/CMC	✓	✓	✓	✓
MTA-STS and TLS-RPT	✓	a separate MTA-STS Lookup	—	—
Notes	three checks in one run, in 4 languages	Finds the BIMI record and runs a series of diagnostic checks on it; MxToolbox has a separate MTA-STS Lookup for MTA-STS.	The BIMI Group's own tool: validates the record format and that DMARC is at enforcement; by its own note it does not validate the SVG or the mark certificate.	Retrieves the BIMI record, validates the logo and the VMC, and shows how the logo looks in different conditions.

Desplaza la tabla hacia los lados

Dónde somos más débiles: no monitoring or alerts and no certificate issuing; we check public data only.

Cuándo elegir PromoPilot: When you want BIMI, MTA-STS and TLS-RPT checked in one run — with the DMARC requirement, a logo preview and MX-vs-policy matching, no sign-up, in four languages.

Comprobado el: 2026-10-13. "—" significa que no está confirmado en la página oficial; las condiciones y los precios cambian, así que consulta los sitios de cada servicio.