Heimdal Email Security
Stops phishing, ransomware and email fraud before they reach users.
"Deployed where email is the primary attack vector for organisations using Microsoft 365 or Google Workspace."
Detect and block email-borne threats and fraud
Email remains the leading entry point for ransomware, phishing and business email compromise. Targeted messages, malicious attachments and weaponised links bypass basic filters and increase the risk to users and data.
Heimdal Email Security scans inbound and outbound mail using AI-enhanced detection, deep attachment inspection and link analysis. It enforces sender authentication (SPF/DKIM/DMARC), quarantines suspicious mail, produces forensic logs and offers cloud archiving to preserve records and continuity.
The product is available in tiered options ranging from core inbound/outbound scanning and content filtering to advanced threat protection with sandboxing, post-delivery alerts and fraud detection.
Where Heimdal Email Security is used
Protect finance and executive teams from BEC and CEO fraud by blocking impersonation attempts, detecting unusual sender behaviour and surfacing high-risk messages for investigation.
Provide mailbox continuity and legal hold with 365-day cloud archiving, plus forensic search and reporting for incident investigations; suitable for SMBs, regulated teams and MSPs offering email security to customers.
Suitable environments
Fits organisations using Microsoft 365 or Google Workspace where email is a primary business channel and in-house security skills are limited. It suits hybrid and remote workforces and regulated environments that require retention and audit-ready records.
Technically it operates as an email gateway for inbound and outbound scanning, supports SPF/DKIM/DMARC, integrates with Heimdal DNS Security for enhanced tracing, and provides per-user quarantine, real-time alerts and detailed logging.
Benefits
Reduced exposure
Prevents malicious messages from reaching users, lowering the chance of compromise.
Improved fraud detection
Detects BEC and impersonation attempts before they impact finance or executive processes.
Faster investigation
Forensic logs and threat visualisation speed up root-cause analysis and response by internal teams.
Mailbox continuity
Archived mail and relay continuity reduce business impact during mailbox outages or data loss.
Centralised visibility
Granular reporting and per-user quarantine simplify administration and incident triage.
Retention & compliance
Retention and searchable archives support regulatory record-keeping and discovery needs.
Capabilities
Inbound & outbound scanning
Deep attachment inspection
AI threat detection
Phishing & fraud prevention
Spoofing protection
Post-delivery alerts
Cloud archiving
Logging & forensics
Applications
Microsoft 365 protection
Adds advanced scanning and forensic controls for organisations using Exchange Online and Microsoft 365.
Google Workspace protection
Provides inbound/outbound filtering and attachment inspection for Google Workspace tenants.
BEC prevention
Targets business email compromise attempts against finance and procurement teams.
MSP email offering
Used by MSPs and resellers to deliver managed email security and archiving to customers.
Regulated retention
Supports regulated organisations that need audit-ready archives and searchable mail records.
Hybrid workforce protection
Secures remote and hybrid users by filtering email before it reaches distributed endpoints.
How we help
Armstrong can assist with deploying and configuring Heimdal Email Security in Microsoft 365 or Google Workspace estates. We often help define blocking policies, tune detection rules and configure archiving and quarantine reporting. Armstrong may help with admin training, handover documentation and ongoing configuration support, while customers retain responsibility for incident handling and operational response.
