A powerful aspect of TonicDM is that you can see where your co-workers filed their email.
If two staff members receive an email and one of them drags the email into an Outlook folder called "2356 Coffee Shop". This email will be filed in the project 2356 and both staff members will see the "2356 Coffee Shop" category on the email in their Outlook.
This means, as user of TonicDM, you'll see categories automatically appearing on email in your Outlook. This let's you know where someone else in your organization filed that email.
To see who filed an email, open it in the TonicDM Outlook sidebar and look for the Filed By tag, as shown below.