When an account (and it’s mailboxes) are displayed, select the “manage folders” option at the bottom. Then, select a mailbox/folder and then the three vertical dots - upper right. You should get a “clear local messages” dialog.
When an account (and it’s mailboxes) are displayed, select the “manage folders” option at the bottom. Then, select a mailbox/folder and then the three vertical dots - upper right. You should get a “clear local messages” dialog.