MIMU’s simple guide to colour-code your Outlook inbox helps to efficiently manage arriving mails - it takes a minute to set it up, works immediately and can be undone by reversing the steps. Try adding different colours for (1) mails sent to you alone, and (2) mails sent to you and others, leaving those in which you are cc’d the original black. Kindly view it via https://themimu.info/RefDoc_Outlook_Setting_to_Identify_Emails_with_Color_MIMU.pdf.