Then click on the old email address and press the ‘Remove from List’ button. Click on Previous Recipients and it will bring up a window with a list of your previous recipients. STEP 2: Enter the name or Email address in the Search space and hit Enter key. Removing email addresses from the Previous Recipients list in Mac OS X Mail. This is because inbox cleaning can take forever when carrying out the task with the mailbox provided features. Mail shows addresses that Siri has discovered throughout the system (see below). By this, you successfully blocked the specific email address. Some of these addresses may be old or ones you don't wish to see anymore. How to remove email address from mac mail In the new e-mail window, start typing the address you want to remove in the To: field.
