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Verified, secure email for lawyers, with proof of delivery

We check your tarjeta profesional against the Registro Nacional de Abogados before your first send. Every art. 8 notification (Ley 2213 de 2022) leaves a signed constancia any perito can check without us.

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  • Verified professional card
  • RFC 3161 time stamp
Isometric model of an office: a desk with documents, a belt carrying an envelope under a press with a clock, an inbox tray and a filing cabinet with a padlock.Isometric model of an office: a desk with documents, a belt carrying an envelope under a press with a clock, an inbox tray and a filing cabinet with a padlock.
  • Sent00:03:44, Bogotá time
  • Timestampsha256 e1bb3cb2…9e442222
  • Acknowledgement of receipt00:12:50, Bogotá time
  • Signed constanciasha256 c30ab010…85e3cb4e
  • Ley 2213 de 2022, art. 8
  • CGP arts. 291 and 292
  • Ley 527 de 1999
  • RFC 3161
  • PAdES

Four steps. None depends on your memory.

See the full walkthrough
  1. An open envelope with a document.
    You writeradicado and attachments
  2. A press with a clock marking a document.
    We stamp and sendfingerprint and timestamp
  3. A tray holding an envelope and a check mark.
    The recipient receivesSMTP 250 reply and open
  4. An archive box holding a document, with a padlock.
    You download the proofPDF constancia and .zip bundle

Your proof does not depend on us still being here.

Verifiable without Notificado

Recipient

The recipient opens it. You know.

Every open and every download goes into the chain with its time.

See the page they receive
The page the recipient of a sample notification opens on a computer: the subject with the radicado, a summary of who gives notice and when the term starts, and the acknowledge receipt button.The page the recipient of a sample notification opens on a computer: the subject with the radicado, a summary of who gives notice and when the term starts, and the acknowledge receipt button.
The same recipient page on a phone: the subject with the radicado and the summary of who gives notice, what it is and when the term starts.The same recipient page on a phone: the subject with the radicado and the summary of who gives notice, what it is and when the term starts.

Verification

Anyone can verify, years later.

A judge scans the QR code or types the code at /verificar. No account, no call to us.

Verify a constancia
SampleThe /verificar result for the sample constancia, code QETB-MJX8-8YN6.

Verify a constancia

Check that a constancia de entrega was issued by Notificado and has not been altered. No account needed.

With the verification code

Verification codeQETB-MJX8-8YN6

Authentic constancia

Notificado issued exactly this document, and it is the current version. The details below must match your copy.

If you checked by code, compare the SHA-256 fingerprint below with your file's: if they match, your copy is this constancia, unchanged.

Issued
Colombian legal time, UTC−5November 5, 2026 at 05:12:50UTC
Status
Delivered
SHA-256 of the PDF
c30ab0103c6beeca7e6f1534980e944a2b0aa25602e589501036870685e3cb4e
Version
3

This check confirms that Notificado issued the document and that it has not been altered. Its legal validity is for the judge to decide.

Evidence

Everything in one .zip that the expert opens offline.

The original email, timestamps, the chain of fingerprints and a verifier that runs in the browser.

How the evidence is built
SampleThe evidence bundle of the same sample notification, and what its bundled verifier answers.

evidencias.zip

$ bun verificar.jsNotificación / Notification: 01a1aa16-befc-7122-bf8a-dfe5027a71f6Constancia: versión / version 3 · emitida (UTC) / issued (UTC) 2026-11-05T05:12:50.374Z · seq 31[OK] Piezas requeridas / Required pieces: eventos, constancia.pdf, sellos / events, constancia, timestamps[OK] Archivos contra manifest.json / Files against manifest.json: 28 archivos / files[OK] Cadena de eventos / Event chain: 15 eventos / events · seq 7..31 · 8 eslabones ajenos sin contenido / foreign content-free links[OK] Reloj del servidor / Server clock: 2/2 mediciones citadas, en el paquete y encadenadas / cited samples, shipped and chained (eventos.json v2)[OK] Archivos que nombran los eventos / Files the events name: .eml, adjuntos/, eventos/raw/, constancia.pdf, remitente/[OK] Constancia: firma y eventos que imprime / Constancia: signature and the events it prints: versión / version 3 · 10 eventos impresos, todos completos / events printed, all shipped in full[OK] Anclaje diario (Merkle) / Daily anchor (Merkle): aún sin anclaje / not anchored yet (NOTA)[OK] Sellos de tiempo RFC 3161 / RFC 3161 timestamps: 8/8 ejecutados con openssl / run with opensslRESULTADO: VERIFICADO / RESULT: VERIFIED
FileBytes
adjuntos/auto-admisorio.pdfSHA-256 e061cd4b73d6200d…988
adjuntos/demanda.pdfSHA-256 01a5a72f55a27520…1,257
copia-apoderado/01a1aa16-bf16-72ca-8d72-d57ebe9fb093.emlSHA-256 cc781cc5c35bc5af…19,286
eventos/7 files38,639
firma/cert-chain.pemSHA-256 89bc9d2a31499b1c…1,196
mensaje/01a1aa16-bf16-72ca-8d72-d57ebe9fb093.emlSHA-256 e1bb3cb24645bb6f…19,748
remitente/vigencia-tarjeta-profesional-987654.pdfSHA-256 7acfb7cced1b3ecb…5,303
sellos/10 files22,808
constancia.pdfSHA-256 c30ab0103c6beeca…91,534
LEEME.txtSHA-256 e7ff0bf5e38e4f3d…4,751
manifest.json7,296
README.txtSHA-256 f29c459ba92de81f…4,600
SHA256SUMS2,758
verificar.jsSHA-256 8dd8bcb9dae2fd04…82,135

What the judge receives, verifiable without our system.

Sample constancia, page 1

Open full size
Page 1 of a sample constancia: verification code and QR, the constancia's identification, the case (radicado 05001310300320260012300, Juzgado 3 Civil del Circuito de Medellín) and the art. 8 legal basis.
SampleSample constancia: the version issued on November 5, 2026 at 00:12:50. Each later issue is a new version.Open full size
  • Signed constancia (PAdES)Any later change invalidates it.
  • 1Verification QR codeOpens /verificar, no account needed.
  • 2Events in legal timeColombian time and UTC.
  • Two timestampsRFC 3161, from two independent authorities.
  • A fingerprint for every documentSHA-256 of the message and of each attachment.
  • Evidence packageThe original .eml and an offline verifier.

Who signs the constancias and how to check itRead the evidence method

Every step, with its time and fingerprint.

SampleEvents of a sample notification, in Colombian legal time.

  • Record and timestamp
  • Send and delivery
  • Recipient
  • Constancia
  • Daily anchor

  1. When the send is confirmed

    00:02:59 to 00:03:45

    • Send confirmedThe sender confirms the send; the message can no longer be edited.
    • Message frozenThe exact .eml is kept with its SHA-256 fingerprint.sha256 e1bb3cb2…9e442222
    • Two timestampsTwo independent authorities timestamp the fingerprint (RFC 3161).TSA 1 · TSA 2
    • SentThe message leaves for the recipient's mail server.
    • DeliveredThe recipient's server accepts the message: SMTP response 250.250 2.0.0 OK

  2. When the recipient acts

    00:08:20 to 00:12:50

    4 min 34 s after “Delivered”

    • Opened (indicio)An open is an indicio (circumstantial evidence), never proof of reading.
    • Annex downloadedThe recipient downloads the auto admisorio; the fingerprint of the file delivered is recorded.sha256 e061cd4b…ae15b2e6
    • Acknowledgement of receiptThe recipient confirms receipt on the notification page.

  3. The constancia and the daily anchor

    00:12:50 to 00:15:00

    0 s after “Acknowledgement of receipt”

    • Constancia issuedA signed PDF (PAdES) with its verification code.sha256 c30ab010…85e3cb4e
    • Daily anchorThe Merkle root of the day's events gets its own timestamp.merkle ce36915c…69ae6a91

How it is counted, in the art. 8 guideCalculate when notice is complete and the termSee the full walkthrough

Against physical mail, two valid routes, each with its own requirements.

Isometric model of two routes side by side. On the left, a stamped envelope travels by van along a winding path, with an hourglass and a rubber stamp on a pile of paper delivery records. On the right, a sealed envelope goes into an inbox tray with a check badge, beside a bound document with a padlock.Isometric model of two routes side by side. On the left, a stamped envelope travels by van along a winding path, with an hourglass and a rubber stamp on a pile of paper delivery records. On the right, a sealed envelope goes into an inbox tray with a check badge, beside a bound document with a padlock.

  • Rule that governs it

    Physical postal mail

    Arts. 291 and 292 of the CGP

    See detail

    Arts. 291 and 292 of the CGP: citatorio and aviso through an authorised postal service company. Both routes are valid, each with its own requirements, and they are not mixed

    Notificado

    Art. 8 of Ley 2213 de 2022

    See detail

    Art. 8 of Ley 2213 de 2022: the court order is sent as a data message to the recipient's electronic address

  • When it is deemed made

    Physical postal mail

    Depends on in person or by aviso

    See detail

    In person, when the person summoned appears at the court; by aviso, at the end of the day after the aviso is delivered (CGP arts. 291 and 292)

    Notificado

    Two business days after the send

    See detail

    Two business days after the message is sent (art. 8, Ley 2213 de 2022)

  • What the court receives

    Physical postal mail

    Compared copy and delivery record

    See detail

    The copy of the notice, compared and stamped, and the delivery record issued by the postal service company (CGP art. 291, no. 3)

    Notificado

    PDF constancia and evidence package

    See detail

    The constancia as a PDF, with its verification code, and the evidence package

  • Proof of the content sent

    Physical postal mail

    Comparing paper copies

    Notificado

    SHA-256 fingerprint of each document, timestamped

  • Who can verify it

    Physical postal mail

    Verified by the courier company that issued it

    Notificado

    Anyone, online or offline

  • Cost per recipient

    Physical postal mail

    The rate of the postal service company you hire

    Notificado

    Between COP 800 and COP 1,290 + VAT

    See detail

    Between COP 800 and COP 1,290 + VAT, depending on the pack

A notification you cannot prove exposes the case to a nulidad (motion to annul) for improper notification (CGP art. 133, no. 8).

A lawyer reads a printed document at the desk in her office, beside a laptop; shelves of case folders stand behind her.

Built for the law office, not for the IT department.

Radicado, recipient, attachments. Send.

Your AI assistant prepares the notification. You confirm it.

Connect an assistant over MCP, or use the REST API, with your account's permissions. A person confirms every send.

Read the developer guideMCP guide
Claude Code
claude mcp add --transport http notificado https://www.notificado.co/mcp
  • Claude
  • ChatGPT
  • Gemini CLI
  • Mistral
  • Cursor
  • Z.ai ZCode
  • Kimi Code

Works with assistants that accept a remote MCP server. You authorize the connection from your account and confirm every send. In ChatGPT the connection requires a Business, Enterprise or Edu plan.

Pay per recipient. No monthly fee.

Buy a pack and use it for 12 months. Each recipient counts as one send.

10 trial sendsWhen your tarjeta profesional is verified. Valid for 90 days.

Pack size

COP 990

per send, plus VAT

23% less than the 10-send pack

Sends
100
Total
COP 99,000
Valid for
12 months
Buy a packMonthly plans for firms

Any doubts? That is the right instinct.

See every question

Is it legal to notify with Notificado?

Yes. Notifying by email is legal: art. 8 of Ley 2213 de 2022 allows the personal notification to be made by sending the court order as a data message to the recipient's electronic address, with a sworn statement about where the address came from. The Civil Chamber of the Corte Suprema de Justicia applies it that way in rulings STC16733-2022 (there is freedom of proof, and the acceptance recorded by the mail server is a valid acknowledgement) and STC8435-2023 (the notification is complete two business days after sending). Notificado sends the notification that way and keeps the proof of sending and delivery. The validity of each notification is for the judge of the case to decide.

Does the law require certified email to notify?

Art. 8 of Ley 2213 de 2022 provides for the personal notification by sending the court order as a data message to the electronic address of the person to be notified, with the oath on that address, how it was obtained and its evidence, and states that systems confirming the receipt of emails may be implemented or used (inc. 4). The Corte Suprema de Justicia has held that the legislature imposed no fixed means of proving receipt (STC16733-2022) and that a judge may not demand a proof of delivery or an acuse de recibo on pain of desistimiento tácito (STC8435-2023).

When the CGP calls for it (arts. 291 and 292)

What if the defendant says they never got the email?

We keep the response of the recipient's mail server when it accepted the message, with the time and, when the provider reports it, its IP address, plus downloads and the acknowledgement of receipt if any. Everything sits in an event chain that cannot be altered unnoticed, and in a package an expert can verify without our system.

Does knowing they opened the email prove they read it?

No. Some mail services open images automatically. That is why we always show an open as an indicio, never as proof of reading. The proof is server delivery, downloads and the acknowledgement of receipt.

What happens when the trial credits run out or expire?

You keep signing in, reading your notifications and downloading your constancias and evidence packages. To make new sends, buy a prepaid pack, from COP 800 + VAT per recipient, valid for 12 months.

Start with the radicado.

RadicadoSample05001310300320260012300

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