Adobe DC and Outlook 365

Hi Community

I have to ask this question as I have not seen this before, but my client insisted that it was there before.
Does Adobe DC have a addin or any component that appears under where the mailboxes appears (on the lefthand side or also known as the navigation panel).
I have never seen something like this but I just need to make sure that there is nothing like this.

Can anyone from Adobe confirm that this is indeed the case?

Regards,

Emil.