AOL Login Error - Unable To Verify / Password Incorrect
AOL thinks the Mac Mail app is not secure if it’s from macOS 10.13 or older, and they won’t let Mail connect to their servers– unless you create a special, “app-specific password” and use that– and not your “real” AOL password– in the Mail app..
Even though you know the password for your AOL account– one way to be sure: go to aol.com in a browser and sign in there to prove that you know it– Mail on a Mac will not work with that password if your Mac is on 10.13 or earlier.
The solution: a custom, special “app password,” generated by AOL, just for the Mail program.
Creating an app-specific password is easy, and AOL provides directions. After you create the app-specific password, write it down for safekeeping. Better yet, copy it so you can paste it without making a typo.