Speech is silver secure emailing is golden

February 8, 2021


How do you best connect with regular emailing?
We believe in emailing. What exactly is the reason for that? Professional and business services have been working for years on the reliable and convenient exchange of data.

Buy a house

Consider, for example, the exchange of data between estate agents, notaries and mortgage lenders or medical data that is shared between general practitioners, specialists and home care providers. For this, various automated systems and digital files are possible that ensure the reliability and availability of that data and convenience so that they only have to be provided once.

Despite this, less structured forms of exchange, such as email, remain popular. They are in line with the practice of the professional and the customer or citizen. When email addresses are known, communication can be established quickly. All kinds of attachments can easily be added, agreements can be made, etc. It is expected that email or unstructured exchange will be used for a long time to come.

Email is a postcard

However, the technology behind email is not secure enough for the exchange of (special) personal data. It turns out that a large part of the data leaks are related to the use of email. This is not surprising, because the conventional email solutions do not have many guarantees against making mistakes and misuse. An ordinary email can be compared to a postcard that anyone who passes through their hands can read or even change it.


Making email more secure is becoming increasingly urgent. For example, the General Data Protection Regulation (GDPR) has been in force since 25 May 2018. As is known, this will further tighten the requirements with regard to privacy protection. Conventional email, “without appropriate technical and organisational measures”, does not meet the requirements. The Dutch Data Protection Authority states the following on its website:

Sending information via e-mail involves risks. So do you want to send personal data by email? For example, data about your customers, citizens or other relations? Then you as an organisation are responsible for sending that data securely. You must take measures for email to prevent unauthorised persons from gaining access to the information. The law does not specify exactly which measures you must take. They must be appropriate. Below we give you two examples of suitable measures.

  • Encrypting the personal data in an email attachment.
  • Encrypting email traffic between mail servers with one or more modern internet standard (s). Examples of modern internet standards are STARTTLS, SPF, DKIM, PGP and S / MIME.

Mandatory TLS

SecuMailer follows the second form: encrypting email traffic between mail servers with additional security based on SPF, DKIM, DMARC, PGP and DANE. This makes it fully compliant with the requirements set by the AP, and is therefore compliant with the GDPR.

What does this mean in practice?

Because SecuMailer uses real email, but through encrypted connections, SecuMailer works equally well on all email environments. It links to the sender’s mail server, checks if the recipient is using TLS, and only sends the email if it is secure.

No fuss

This allows the sender to use his own email application without modifications. So no plug-ins, add-ons or portals are needed to send the email securely. The recipient also receives a regular email in his inbox, without passwords or references to a portal or temporary links where a file can be retrieved.

All email applications

This makes it possible to use SecuMailer with Office 365, GMail for Business, Exchange, Salesforce etc… without restrictions on devices; desktops, laptops, smartphones or smart devices, they are all supported.

SecuMailer is the only solution that really emails, but then securely.

Groetjes Yvonne Hoogendoorn
CEO SecuMailer