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MailTecK & customercomms Menú

Certified communications with high probative value

Guarantee the legal validity

Guarantee the legal validity of your postal and electronic communications

Traceability, content certification and custody of documents and evidence

Traceability, content certification and custody of documents and evidence

Manage your communications

Manage your communications through a single provider

Secure the proof of availability of your communications through postal or electronic channels

There are times when your company has to send certified communications to avoid future legal problems. You should be able to manage these communications from your company, with the same provider, to reduce the risk of information leakage. In addition, you will need a high level of faith in the certification process for each shipment.

When you need to give legal value to the sending of a physical or electronic communication to a recipient, be it Postal, email or SMS, with no need for acknowledgment of receipt, the MailTecK & CustomerComms’ Certified Communications Service accredits the availability of communication to the recipient, as well as its content and its time of sending.

With the coverage of a Trusted Service Provider

Integration of physical and electronic channels

Integration of physical and electronic channels in the same platform

Full legal validity

Full legal validity of the certifications generated in the communications

Certification of content and time stamp

Certification of content and time stamp with notarial deposit of the "hash" function

Confirmation of delivery on server

Confirmation of delivery on server and proof of access to content with forwarding via another channel in case of failure

Custody of at least 5 years

Custody of at least 5 years of certificates of communications and collected evidence

One solution with multiple applications


The customer can receive the request through both postal and electronic channels.


Accredit the communication of the renewal of prices or rates of the services contracted.


The company needs to certify the communication of the cancellation of the service as established in the contract.


When you have to prove the communication of a contract renewal, for example, in insurance policies.


A certified communication is a preventive measure to dissuade customers from denying receipt of the notice of expiration.


Provides legal proof to the sending of invoices, offers, modification of contract conditions, etc.

Manage your certified communications from your computer with CertySigh

Esquema Comunicaciones Certificadas

Benefits for
your company

  • Specialists in multi-channel personalized communications. We help you to address the customer through the best channel.
  • A single provider (design, management, production and mailing), which reduces the risk of information leakage.
  • We guarantee confidentiality and security as Trusted Service Provideres with the ISO 27001 certification.
  • Priority of lower cost channels, such as digital ones, as opposed to other more expensive options.

Do you want to know more about certified communications?

Download this whitepaper free of charge to learn about the process of electronic certification of communications and the advantages it brings.



Platform for all your legal communications

SLegal security

Legal security

Maximum legal guarantee of your communications and transactions

Trusted Third Parties

Trust Service Provider

Certification and digital custody of communications and evidences



Services available from PC, mobile and tablet


Asociación Europea
Defensor del pueblo
MMT Seguros
Viajes el Corte Inglés


Avenida de la Recomba 14
P.E. La Laguna
28914 Leganés · Madrid
+34 916 895 665


Calle Balmes, 200
Planta 6º Puerta 4º
08006 Barcelona
+34 934 152 445


P. I. Ribera de Axpe, 11
Edif. BL-206-B-2ª
48950 Erandio · Vizcaya
+34 944 646 412


Torre Montesanto
Rua Afonso Praça, 30, 7th floor
1495-061 Algés · Lisboa
+351 21 121 5030


75 State Street
Boston · MA 02109
+ 1 617 655 7200

Have you received an electronic communication managed by MailComms Group?

Have you received an electronic communication managed by MailComms Group?

Línea separación

It is likely that your product or service provider may need to send you a certified communication or that they are participating in an electronic signature process