See how KavachIQ helps a Microsoft 365 team recover mailboxes that are beyond the native recovery window, restore the correct retention posture, and produce evidence for compliance review after a high-volume deletion event.
This page describes an illustrative scenario. It is not a customer testimonial and does not contain fabricated metrics. It is intended to help Microsoft 365 teams, IT and security leaders, and procurement reviewers understand KavachIQ in the context of a realistic Exchange-heavy incident.
Related: compromised Global Admin · destructive deletion across SharePoint and OneDrive
A large batch of mailboxes is removed in a short window. Retention policies and labels have drifted around the same time. Some mailboxes are already beyond the native recovery window. Compliance and legal need answers before the team can close the incident.
A large batch of mailboxes is removed in a short window. A scripted offboarding, a mistaken admin action, or an abused privileged session all produce the same pattern.
Mailbox deletion also removes the calendar and contacts for every affected user. Meeting history and shared calendars surface the issue quickly.
Retention tags, retention labels, and retention policies were modified around the same time. What is still recoverable via native tools is now uncertain.
Deleted mailboxes enter the 30-day soft-delete window. Some are already beyond that window or have been explicitly purged. Native recovery for those cases is limited or unavailable.
Mailboxes under legal hold or litigation hold may be partially preserved, but the team has to confirm hold state per mailbox before any restore action.
Script? Admin error? Compromised identity? Recovery has to move forward while the cause is investigated, without restoring unsafely.
Some of this work is possible with native tools and PowerShell. What makes it painful at scale is the combination of tight recovery windows, retention ambiguity, and compliance expectations.
Recovery windows are tight. Microsoft 365 soft-delete for mailboxes is 30 days by default, and purged mailboxes are not recoverable through native tools.
Retention drift makes the surviving state ambiguous. Which retention labels and policies were active at the time of deletion is not trivial to reconstruct.
Soft-delete, hard-delete, and purge are easy to confuse. Admins spend time in PowerShell validating state per mailbox before they can decide on a restore path.
Restore is fragmented. Mailbox-by-mailbox restore via native tools or PowerShell scripts is slow and hard to prioritize when hundreds of mailboxes are affected.
Compliance review runs in parallel. Legal and compliance need evidence of what was deleted, when, by whom, and what was restored, before sign-off.
KavachIQ runs the same six-phase workflow on every recovery. Applied to a bulk mailbox deletion and retention-drift event, this is what each phase does.
Exchange Online state is already captured on a schedule.
Baselines track normal mailbox and retention activity per tenant.
Bulk deletion and retention drift are flagged with evidence.
Blast radius is computed across mailboxes, retention state, and hold status.
Guided mailbox restore in a business-safe order.
Mailbox recovery is confirmed with evidence.
Identity-first thinking still applies. Confirm the control plane is trustworthy, then recover mailboxes in the order that restores business continuity fastest and that supports compliance review.
If any admin, role, or policy drift is detected alongside the mailbox deletions, restore Entra controls first. Do not restore mailbox content into a tenant whose control plane is still in question.
Executives, compliance officers, legal, finance, and incident-response mailboxes are restored first. Calendar and contacts are restored alongside mailbox content so priority users can return to normal operations.
Retention tags, labels, and policies are reverted to the known-good state. Legal holds and litigation holds are confirmed active before the broader mailbox restore runs.
Remaining mailboxes are restored with checksum and sign-in verification. A recovery report documents what was deleted, when, by whom, and what was restored, for compliance review.
KavachIQ does not prevent every mailbox deletion or retention change. It changes how a Microsoft 365 team runs the recovery, and how defensibly compliance can sign off on being back online.
Mailboxes purged or past the 30-day soft-delete window are recoverable from KavachIQ snapshots, not dependent on Microsoft 365 native recovery timelines.
Retention tag, label, and policy state is visible per mailbox before deletion and after restore. Drift is addressed explicitly, not assumed to be intact.
Critical users come back first. Legal, compliance, finance, and executive mailboxes are verified before broader mailbox restore runs.
Coordinated, guided restore replaces cycles of mailbox-by-mailbox PowerShell scripts and admin-center clicks.
A timestamped log of detected deletions, policy changes, decisions, and restore actions supports legal and compliance review after the incident.
Walk the bulk mailbox deletion scenario, or your specific incident, with a KavachIQ recovery engineer. Bring the mailbox, retention, and compliance questions that matter for your tenant.