Cannot read old encrypted emails after getting a new CAC

windows

Symptoms

Old encrypted messages are unreadable because the new CAC has different keys.

Likely cause

Each CAC issuance generates new email encryption keys; old keys must be recovered.

Fix

1. From a government computer on the .mil network with your current CAC plugged in, follow the DoD Automatic Key Recovery process (the AKR PDF on militarycac.com). 2. The wizard re-issues your historical encryption keys, which Outlook then uses to open old messages.

Sourced from militarycac.com. Rewritten for clarity.

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