@mactoph I appreciate the details on your post. They helped me understand a little more of my own issues.
I have been in contact with support in regards to a potential security issue. When you use an ‘email’ column and put in your email address (or a coworkers) email address (thats connected), the Emails and Activities section will display the entire inbox for all to see. Not just emails your account has, but all emails from any connected account in the column.
I detailed my experience here - Emails and Activities Possible Security Warning