Provide a feature to add an internal subject matter to track emails with relevance not stated in subject line in Microsoft Outlook 2016
For example, I am an accountant. Many of our clients are large families and we communicate with their financial advisor only. We receive email updates throughout the year related to multiple family members. The subject line the advisor chooses may be the family's last name but the subject matter within the email may be multiple things such as estimated taxes and changes to payments, letters from governmental agencies, new addresses, purchases and sales, etc. The problem I have is by the time we are ready to prepare a tax return in October we may have 15 emails out of 150 that relate to estimated tax payments but I have NO WAY of tracking all of those down without printing them or moving the message to a folder, or reading every email sent. I already use Folders and it has helped but we need one more filing mechanism. An internal subject line would allow us to search for subject matter that is applicable to our internal purposes only.
Thank you for your consideration and time.