Please Help! I don't know what else to do. My AquaMail stopped working with my Yahoo account on October 13. Nothing I do seems to fix it. I have gone into yahoo account and allowed "less secure" setting as instructed. Still won't work. At the moment I get this message: "Incoming mail server (IMAP): Authentication error. NO (#MBR1212) Incorrect username or password." I have triple checked, and the password & email address are correct. Username? What do they mean?