Troubleshooting MS Outlook S/MIME Issues Decrypting

Troubleshooting MS Outlook S/MIME Issues Decrypting

Troubleshooting MS Outlook S/MIME Issues

STEP 1

Go to Outlook, Click:

File

Options

Trust Center

Trust Center Settings

Email Security

Next to the settings button should be the cert title, Close Outlook and go to step 2.

If it is blank and you click settings and you are able to choose a cert using the Choose button then do it and hit ok.

Exchanging emails with DOD use: ORC

 

STEP 2

Please try these steps:

Go to Internet Explorer:

Tools

Internet Options

Content

Certificates

Personal

Advanced

Check boxes: Client Authentication & Secure Email

Hit OK, Close all windows.

 

STEP 3

Click Start

Type MMC (in the search programs and files bar)

Enter

Hit Ctrl + M

Double click Certificates

My User Account

Ok

Certificates – Current User

Other People

Certificates

Delete problem senders certificates

Close – Save console settings to Console1 yes.

 

Step 4

Go to Outlook

Delete the contact

Have contact send Signed email

Right click reply senders name

Add to contacts

Click Certificates

Select Cert

Properties

Trust

Explicitly Trust this Certificate

Hit ok, Save & Close.

Have contact send Encrypted email

Right click reply senders name

Add to contacts

Update

Save & Close contact

 

STEP 5

Download and install the latest version of Install Root ) Militarycac *.MSI version, there is a Non admin version which works great for domain environments.

Once installed Right click and subscribe to ECA root, then install certificates and save settings. This will add and correct any cert chain issues.

 

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