Hi @Mike Heidrick ,
Welcome to our Q&A forum!
From reading notes from others I would mention we have Adobe Cloud and Adobe Pro installed on these computer
Based on my search results, I found a similar thread, you can focus on the option ("Adobe Send & Track for Microsoft Outlook - Acrobat") in this discussion.
Go to FILE -> Options -> Add-ins --> Manage COM Add-ins --> Go. Then uncheck "Adobe Send & Track for Microsoft Outlook - Acrobat" --> OK.
If this doesn’t help, personally I’d recommend creating a new profile.
(1) Exit Outlook.
(2) In Control Panel, click or double-click Mail.
(3) Choose Show Profiles> Add. In the Profile Name box, type a name for the profile, and then choose OK.
(4) Add your account to test if the problem is resolved.
Hope it can help!
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