SMTP Port: 587
Username: Your AOL screen name (e.g. bruce)
Password: You will need to generate an app password for your account.
You need to input the above details into the YaySMTP settings area accordingly, then enable less secure apps in AOL by logging into your AOL account and then open "account security settings" or click here, click on the Generate app password.
An overlay will show up, choose Others and write app name as YaySMTP, click the Generate button, this will show the one-time password which you should copy and paste inside the password field on your website's YaySMTP settings screen.