E-Mail Security
Since February 1, 2026, we have held Silver Partner status with Hornet Security, the leading provider of cloud-based email security, business continuity, compliance, backup and recovery solutions.
DKIM and DMARC
Since 2025, major email providers like Microsoft, Google, Yahoo, Apple, etc., have been enforcing the DKIM and DMARC authentication standards for senders. SPF is now practically mandatory for sending emails, and while DKIM and DMARC aren't yet strictly required, they are important for curbing spam and phishing and thus protecting recipients. Although setting them up isn't too difficult, many email systems still haven't implemented them.
Hornetsecurity's flagship product, 365 Total Protection, is the market's most comprehensive cloud security solution for Microsoft 365, offering all-in-one protection. More than 50,000 customers and 5,000 partners worldwide trust Hornetsecurity.
- Hornet Security's services are flexible, just like your customers' needs. With our comprehensive service portfolio, you can respond quickly and easily to diverse requirements and needs!
- Whether you have 3 or 30,000 employees: Hornet Security's cloud solutions are predictable and, above all, scalable.
- Tailor-made services: The 365 Total Protection suite is specifically designed for Microsoft 365 and integrates seamlessly.
- GDPR and GoBD compliant in every respect: From audit-proof email archiving and encryption to uniform and legally compliant signatures and disclaimers.
- The data security of our customers is our top priority! That's why all data is stored worldwide in secure, redundant data centers.
- IT security made easy: Hornet Security's fully managed cloud services are monitored 24/7, all year round. This allows your customers to focus on their core business.
- Business emails often contain internal, personal, or other sensitive information that could be intercepted and spied on during transmission if not adequately protected. Ensure fully encrypted email exchange with end-to-end S/MIME encryption from Hornetsecurity for reliably secure email communication.
The new Plan 4 - 365 Total Protection
Microsoft 365 Total Protection Plan 4 has always been the most comprehensive Microsoft 365 security suite on the market. Hornet Security has decided to make this Plan 4 even bigger and better with AI.MY, the AI Cyber Assistant!
Product comparison 365 Total Protection
For comparison, the plans are:
Plan 1 - Total Protection Business
Plan 2 - Total Protection Enterprise
Plan 3 - Total Protection Enterprise & Backup
Plan 4 - Total Protection powered by AI Cyper Assistant
| functions | Description | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| E-Mail Live Tracking | Real-time monitoring of all email traffic and definition of filter and delivery options. | ✔ | ✔ | ✔ | ✔ |
| Infomail handling | Prevention of the direct delivery of emails classified as newsletters and informational emails. | ✔ | ✔ | ✔ | ✔ |
| Content Control | Protection against the intrusion or sending of unauthorized file attachments in accordance with company policy | ✔ | ✔ | ✔ | ✔ |
| Compliance Filter | Advanced filter for automatically checking email traffic according to user-defined filter rules. | ✔ | ✔ | ✔ | ✔ |
| Spam and Malware Protection | Multi-stage filtering systems and in-depth analysis for the immediate detection and defense against novel threats and attacks. | ✔ | ✔ | ✔ | ✔ |
| Outlook Black & Whitelisting | Interface for central control from within Outlook | ✔ | ✔ | ✔ | ✔ |
| Individual User Signatures | Central control over company-wide standardized email signatures; automatic synchronization of contact records through Active Directory integration. | ✔ | ✔ | ✔ | ✔ |
| 1-Click Intelligent Ads | Setting up automatically integrated advertising banners or links in the email signature to external company communications; group-based assignment possible. | ✔ | ✔ | ✔ | ✔ |
| Company Disclaimer | Automatic integration of a uniform and legally compliant company disclaimer in every outgoing email; group-based assignment possible. | ✔ | ✔ | ✔ | ✔ |
| Global S/MIME & PGP Encryption | Strong encryption solution to protect email communication from unauthorized alteration or viewing by third parties; protection of internal and sensitive company content from espionage. | ✔ | ✔ | ✔ | ✔ |
| Secure Cipher Policy Control | Centralized trust chain management; Individual definition of security criteria used for email communication. | ✔ | ✔ | ✔ | ✔ |
| Websafe | Securing confidential email communication with communication partners who do not use encryption technology | ✔ | ✔ | ✔ | ✔ |
| Email archiving | Automated, legally compliant and audit-proof email archiving immediately upon receiving and sending emails. | ✔ | ✔ | ✔ | |
| 10-Year E-Mail Retention | Simplest and legally compliant access to archive data within the framework of legal retention periods. | ✔ | ✔ | ✔ | |
| eDiscovery | Advanced email search with numerous filter functions for precisely finding the data you are looking for in seconds. | ✔ | ✔ | ✔ | |
| Forensic Analyses | Forensic analysis mechanisms, algorithms, and AI-based detection mechanisms for effective defense against sophisticated threats. | ✔ | ✔ | ✔ | |
| ATP-Sandboxing | Protection against targeted attacks and blended attacks through dynamic analysis | ✔ | ✔ | ✔ | |
| URL Malware Control | Securing all internet access from email communication; analyzing and securing downloads | ✔ | ✔ | ✔ | |
| Realtime Threat Report | Overview of Company Security Management; collection of comprehensive information (threat reporting, attempted attacks including attack type and vector) at a glance. | ✔ | ✔ | ✔ | |
| Malware Ex-Post-Alert | Notification of emails subsequently classified as harmful, including detailed analysis. | ✔ | ✔ | ✔ | |
| Email Continuity Service | Effective protection against system failures with automatic immediate activation | ✔ | ✔ | ✔ | |
| Malware Ex Post Deletion | If emails that have already been delivered are identified as potentially harmful during subsequent analyses, Ex Post Deletion allows authorized administrators to initiate immediate protective measures. | ✔ | ✔ | ✔ | |
| Automatic backups for mailboxes, Teams, OneDrive and SharePoint | Comprehensive protection against data loss for Microsoft 365 user and group mailboxes (emails, calendars and contacts), Teams chats (individual and group chats, files, meeting recordings) and OneDrive and SharePoint document libraries. | ✔ | ✔ | ||
| Recovery solution | Diverse and granular file and email recovery options: The advanced search function allows files to be individually selected for recovery to OneDrive, SharePoints, and Endpoints. | ✔ | ✔ | ||
| Backup and recovery of Windows-based endpoints | All files and folders of a selected Windows workstation or laptop can be backed up and restored within the original computer or an Endpoint Management server. | ✔ | ✔ | ||
| Backup account activity audit | All activities in 365 Total Backup are audited. This includes basic, security-related, and privacy-related information such as browsing and restore requests, and users enabling or disabling mailboxes, Teams, OneDrive, and SharePoint backups. | ✔ | ✔ | ||
| AI Cyber Assistant | AI-powered support, AI Recipient Validation | ✔ | |||
| Email Security Analyst | Automated analysis of user reports about suspicious emails | ✔ | |||
| Teams Protection | Protection against malicious links and messages in Microsoft Teams | ✔ |
The ongoing costs
per licensed M365 mailbox and commenced month
| Plan | Net costs in Euro |
|---|---|
| 1 | 2,50 |
| 2 | 4,50 |
| 3 | 7,00 |
| 4 | 12,00 |
Shared mailboxes, aliases, and distribution lists are free of charge.
A typical distribution of email volume
Next Gen
Security
Awareness
Service
The Next Generation Security Awareness Service, which is seamlessly integrated into Hornet Security, allows companies to further strengthen their security very cost-effectively by educating and training their employees.
To order
We will create a non-binding offer for setting up Hornet Security in your M365 tenant according to your individual requirements.
