Outage in Hornetsecurity

[HSE20260219-01-I] Incident: Degraded Performance: Total Protection synchronization

Resolved Minor

February 19, 2026 - Started 20 days ago - Lasted about 2 hours

Incident Report

We are investigating reports regarding the deletion of licensed mailboxes by the total protection synchronization
The cause is currently being analyzed in more detail.
Other services and email flow are not affected.

Components affected

Hornetsecurity 365 Total Protection

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Latest Updates ( sorted recent to last )

20 days ago - at 02/19/2026 08:16AM

20 days ago - at 02/19/2026 09:18AM

We successfully identified the root cause.
While a fix is being prepared we have intermittently halted any further synchronizations to M365.
Other services and email flow are not affected.

Latest Hornetsecurity outages

[HSE20260225-01] Issue: Delivery Issues to Microsoft Email Domains - 14 days ago

Outlook Add‑ins Missing - 22 days ago

[HSE20260204-01-I] Incident: Degraded Performance: EmiG Service - about 1 month ago

[HSE20260203-01-I] Incident: Service Disruption: Hornetsecurity Website - about 1 month ago

[HSE20260123-01-I] Incident: Service Disruption: 365 Permission Manager Service - about 2 months ago

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