Wrong email address on the CAC
windowsmacos
Symptoms
Email cert lists an old or wrong address (e.g. legacy @us.army.mil instead of @mail.mil), causing GAL/Exchange mismatches.
Likely cause
Email address was not updated when units, branches, or services changed.
Fix
1. Go to https://www.dmdc.osd.mil/self_service.
2. Sign in with CAC.
3. Choose Replace Certificate. Edit the email field to the correct address.
4. Or visit an ID card office to have it done in person.
5. After ~30 hours the new cert publishes to the GAL.
Sourced from militarycac.com. Rewritten for clarity.
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