NOTE: This article is for informational purposes. ISN is not affiliated with Yahoo in any official capacity and cannot help you troubleshoot anything else in your Yahoo account.
ADDITIONAL NOTE: Yahoo Mail owns and runs email services for SBCGlobal and AT&T, however, the enable less secure apps button does not exist or work for those email accounts. Any email coming from @sbcglobal.net or @att.net cannot be used for sending email in ISN via SMTP.
Yahoo mail now requires you to enable less secure apps to work with ISN for SMTP.
- Sign in to Yahoo Mail.
- Go to your "Account security" settings.
- Turn on Allow apps that use less secure sign in.
- Confirm your identity
- You're all set! See the screenshots below for each step.
Yahoo will automatically save this for you, there is no SAVE button.