Why choose Sikkermail over insecure emails?

Professional email encryption for secure communication

Certificate-based encryption

S/MIME technology ensures only the right recipients can read your emails.

Prevents unauthorized access

Emails cannot be read by hackers or other outsiders.

Confirms sender identity

Digital signature ensures the recipient knows emails come from you.

GDPR compliant

Complies with all EU data protection laws. Perfect for lawyers, doctors and others handling sensitive data.

Integrates with your email

Works perfectly with Outlook, Thunderbird and other popular email clients. Easy setup.

Full setup included

We handle all technical setup and configuration. You can focus on your business.

Choose the right Sikkermail package

Professional email encryption for any business

Sikkermail

Basic email encryption

62,50 DKK
  • Certificate-based encryption ensures high security
  • Only recipients with correct certificate can decrypt content
  • Prevents unauthorized access
  • Confirms sender identity
  • Ideal for professionals requiring high data security
  • Supports S/MIME based encryption
  • Digital signature for email integrity
  • Enhanced email privacy
  • Secures sensitive information in transit
  • Easy administration of email certificates

Sikkermail - Shield

DNS email authentication

250,00 DKK
  • Hosted SPF: Stops forgery and increases trust
  • Hosted DKIM: Guarantee for genuine emails
  • Hosted DMARC: Control over your email security
  • Hosted MTA-STS: Encrypts your emails during transfer
  • Hosted TLS-RPT: Proactive encryption insight
  • Hosted BIMI: Increased visibility with your logo
  • Full setup and integration
  • Aggregated and forensic reporting
  • High data security and integrity

Why is email encryption critical?

Regular emails can easily be read by hackers, competitors and other outsiders. With Sikkermail your communication is 100% secure and private.

S/MIME

Certified encryption

256-bit

Military-grade security

GDPR

Fully compliant

Sikkermail vs regular email

See the difference between secure and insecure email communication

Regular Email

  • No encryption - can be read by hackers
  • Sender can easily be forged
  • GDPR compliance challenges
  • Sensitive data is unprotected
  • Risk of phishing and fraud

Sikkermail

  • S/MIME encryption - military-grade security
  • Digital signature confirms sender
  • 100% GDPR compliant
  • Fully protected sensitive data
  • Protected against phishing and forgery

Secure communication with public authorities

Certified for all Danish public sectors

Government & Ministries

Courts & Justice

Police & Security

Municipalities & Regions

Healthcare Sector

Approved for public sector

Our S/MIME certificates are issued by officially recognized Certificate Authorities and meet all requirements for secure communication with Danish authorities and public institutions.

How Sikkermail works

Easy and secure email encryption in 4 simple steps

Certificate installation

We install your personal S/MIME certificate

Optional encryption

Choose which emails to encrypt

Secure delivery

Encrypted emails sent securely

Decryption

Only certified recipients can read

Full setup and support included

Our technical team handles all setup and configuration for you. No technical problems - just secure email communication from day one.

Frequently asked questions

How quickly can we get started?

Installation and setup typically takes 1-2 business days. We handle all the technical work for you.

Does it work with our existing email?

Yes, Sikkermail integrates perfectly with Outlook, Thunderbird, Apple Mail and other popular email clients.

Can all recipients read our emails?

Only recipients with the correct S/MIME certificate can decrypt and read your messages.

Is it GDPR compliant?

Yes, Sikkermail complies with all EU data protection laws and is perfect for lawyers, doctors and other professions.

What if we have technical problems?

All customers receive full support. We help with installation, setup and any questions.

Can we send to recipients without Sikkermail?

Yes, you can still send regular emails. Encryption is only activated when both sender and recipient have certificates.

Ready for secure email communication?

Protect your sensitive data with professional email encryption. Get Sikkermail up and running in a few days.

Need help choosing the right package? Call us at +299 31 10 86