Send and receive secure emails with SEPO secure email
SEPO (Secure Email Processing and Organisation) is a Danish-developed solution for secure email that has been helping private and public companies protect their data and create secure digital communication since 2007.
What is SEPO?
SEPO is more than just an encryption solution - it's an advanced email tool that combines ease of use, scalability and compliance. It automatically encrypts and decrypts your emails with OCES certificates so you can securely send and receive sensitive data.
Whether you send to authorities, citizens, customers or business partners, SEPO gives you a proven and reliable solution for secure email - without compromising on flexibility or functionality.
Why Danish companies choose SEPO as their secure email solution
Top-class security and compliance
SEPO complies with the strictest data security requirements. The solution is ISAE 3000 type II, ISAE 3402 type II and ISO 27001 certified. All data is stored in Denmark - and all our support staff are PET-cleared.
Flexible and scalable
With countless configuration options, SEPO easily adapts to your business workflows and IT environment - from small offices to large organisations.
Operation on your terms
SEPO can be installed locally on your own servers or offered as a fully managed service - you choose, we deliver.
Freedom without constraints
The solution works with all common mail scanning systems, which means you're not locked in to a specific provider.
Compatible with your tools
SEPO works seamlessly with Outlook (Windows and web), e-Boks, Mit.dk, Mínboks (Faroe Islands) and more. Via our SEPO Client API, the solution can also be integrated with your existing systems.
Flexibility and compatibility in your secure email solution
With SEPO, organisations not only get a reliable encryption solution, but also a range of options and benefits that make it an indispensable tool. Ease of use, scalability and exceptional compliance are at the heart of SEPO's design, ensuring that both small and large organisations can benefit from its advanced features. From flexibility in configuration to seamless integration with existing systems, SEPO offers a comprehensive solution for secure email that meets the highest standards in data security.
For example, SEPO is compatible with the following solutions:
- e-Boks integration (incl. Greenland)
- Mit.dk and Mínboks integration
- Send Digitalt and Send Digitalt Cloud
- DKIM email authentication
- Mail distributor and name lookup
These modules give you extra flexibility and support even more secure and efficient email management.
Danish solution. Danish support. Danish security.
At a time when global security faces many challenges, having a Danish-developed solution, like SEPO, ensures both security and accessibility. Hosted in Denmark and with a Danish-speaking support team, you can rest assured that your data is handled by professionals who understand local conditions and prioritise your security.
Our support staff are PET-cleared, which further supports the security and confidentiality that SEPO offers. Not only do you get a high level of security, but also a solution designed with Danish values and standards.
SEPO can be customised to your needs
You can customise the solution as your needs change. You choose the elements that create the most value for your organisation - and get a solution that adapts to you.
Tunnel encryption - peace of mind in a busy life
When things are moving fast, it's easy to forget to send an email securely. With tunnel encryption, you don't have to worry about that. Emails between specific collaborators or departments are automatically sent securely - without you having to do anything. This reduces the risk of errors and saves time.
Send securely - secure communication with authorities and businesses
Do you need to send sensitive information to authorities or other organisations? With Send Securely you can do it directly from Outlook - easily and intuitively. You will automatically be notified of how securely your email has been sent and the solution follows the Danish standard for secure email.
Send Digitally - Digital Post directly from your Outlook
Make it easy for your employees to send and receive Digital Post. With Send Digitally, you work directly in Outlook as you know it - but with the option to send via e-Boks and Digital Post to both citizens and businesses. You'll automatically receive an answer to whether your messages have been received correctly, avoiding errors and duplication of effort.
Mail distributor - less administration, more overview
Drop manual processes and the hassle of keeping track of multiple mailboxes. With Mail distributor, your incoming digital mail is automatically routed to the right person or department. This saves time, simplifies workflows and provides a better overview.
NgDP - full integration and flexibility
Are you an organisation that wants to send and receive digital mail more flexibly? With the NgDP module, you get full access to the latest digital infrastructure - directly in Outlook. You can send messages, look up contact records and automatically distribute incoming messages via rules you set up yourself. This gives you more control and saves you manual workflows.
SEPO is the safe choice for a secure email solution
Why do many Danish municipalities, agencies and supervisory authorities choose SEPO as their secure email solution?
SEPO is a Danish-developed solution that is compatible with Danish systems and meets the strict IT security requirements demanded by Danish authorities. SEPO's Danishness means that it is customised to fit into the Danish digital infrastructure. Compatibility ensures that integration with existing systems runs smoothly, minimising downtime and ensuring a seamless transition.
Furthermore, SEPO follows all national security standards, guaranteeing maximum protection of sensitive information and secure communication that meets the highest standards. This makes SEPO the natural choice for public institutions and companies in Denmark that want a reliable and secure email solution.
Security is top notch
When you handle sensitive information, it's not enough to trust that your systems are secure - you need to be able to prove it. With SEPO, you get a solution that meets some of the most recognised standards for information security and internal control: ISAE 3000 type II, ISAE 3402 type II and ISO 27001.
This means that both your organisation and your business partners can have full confidence that your digital communication is handled securely, correctly and in accordance with applicable requirements. The standards are also your proof to regulators and customers that you take data security seriously - and work with it in a structured and responsible way.
With SEPO, you don't just get secure email - you get security you can prove.
ISAE 3000 type II
This standard documents that a company is in control of security and complies with regulations such as GDPR when processing personal data or providing critical services. Type II means that the controls are tested over time - not just described.
ISAE 3402 type II
Typically used by service providers to demonstrate that they have effective internal controls - especially around IT, operations and finance. Type II demonstrates that the controls work in practice over an extended period of time.
ISO 27001
An international standard for information security. It ensures that companies systematically protect data against misuse, attacks and loss - both technically and organisationally.
SEPO Support and operations
SEPO Operations info
Frequently asked questions about SEPO and secure email
Click on the question to get the answer.
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What is ISAE 3000 type II?
ISAE 3000 Type II is an international auditing standard that documents that a company has effective controls to protect data, such as personal data. Type II means that the controls have been tested over time and work in practice. It is particularly relevant in relation to GDPR and data security.
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What is ISAE 3402 type II?
ISAE 3402 type II is used to document that a company has control over its internal processes, especially in relation to IT and finance. Type II means that the controls have been tested over a longer period of time. This gives customers and partners confidence in the reliability of the organisation.
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What is ISO 27001?
ISO 27001 is a global standard for information security. It demonstrates that an organisation works systematically to protect data against threats such as hacking, errors and misuse - both technically and organisationally.
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What is NgDP?
NgDP stands for "Next Generation Digital Post". It is the government's latest infrastructure for secure digital communication between authorities, businesses and citizens. With SEPO and the NgDP module, you can send and receive Digital Post directly in Outlook.
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What does the PET clearance mean?
Being PET-cleared means that a person has been security cleared by the Danish Security and Intelligence Service (PET) and assessed as suitable for handling sensitive or confidential information. All SEPO supporters are PET-cleared at the "Secret" level.
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What is Send Digitally and Send Digitally Cloud?
These are modules for SEPO that make it possible to send and receive Digital Post directly from Outlook - in a familiar and user-friendly environment. "Send Digitally Cloud" is a version where the solution is hosted and operated as a service, eliminating the need for local installation and maintenance.
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What is DKIM email authentication?
DKIM (DomainKeys Identified Mail) is a technology that protects against forged emails. It helps against phishing by verifying that an email was actually sent from the domain it claims to be from. SEPO supports DKIM for added security.
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What are OCES certificates?
OCES (Official Certificate for Electronic Services) are digital certificates used to secure and identify the sender and recipient in digital mail and email. SEPO uses OCES certificates to automatically encrypt and decrypt emails.
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What is email encryption?
Email encryption is a technique that protects the content of your emails so that only the recipient can read them. It prevents unauthorised parties from intercepting sensitive information along the way. SEPO handles encryption automatically - with no extra effort for the user.