Yahoo

1. Go to https://mail.yahoo.com and login to your account
2. Then go to https://login.yahoo.com/account/security​
3. Account Security > Manage app passwords

4. Create a new app password

5. Copy the app password

6. Configure

MAIL_MAILER="smtp"

MAIL_HOST="smtp.mail.yahoo.com"

MAIL_PORT="587"

MAIL_USERNAME="user_email"

MAIL_PASSWORD="app_password"

MAIL_ENCRYPTION=tls

MAIL_FROM_ADDRESS="your_email"

MAIL_FROM_NAME="maildoll"