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
- 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 - Pro
Advanced email security
- Certificate-based encryption ensures high security
- Only recipients with correct certificate can decrypt content
- Prevents unauthorized access
- DMARC: Protects against phishing and spoofing
- SPF: Specify allowed mail servers
- DKIM: Digital signature for authenticated emails
- BIMI: Brand recognition with logo
- MTA-STS: Encrypted email transport
- TLS-RPT: Reporting of encryption issues
- Aggregated and forensic reporting
- High data security and integrity
Sikkermail - Shield
DNS email authentication
- 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.