1,796 votesT_Howland commented
I have not up-voted this idea because in all honesty, your organisation should prioritize IT / Software Asset Management.
ITAM / SAM processes and policies, which is a C-level imperative (refer to Gartner & Microsoft), have the ability to manage and maintain a complete and accurate CMDB, which will include this level of information.
We announced at Ignite that we are actively working on bringing dynamic plus aliases to Office 365.
To get around existing usage, the plan is for an opt-in setting. Our ETA is to have this available for all customers by the third quarter of 2020.
I will keep you updated in Uservoice on our progress.