How do you retrieve Yahoo! Basic mail in Zoho?

Hello. I'm new to Zoho (and love it so far), but I can't seem to correctly set up my Yahoo! mail in Zoho mail (I was able to get my other email accounts set up rather easily though!). I've been researching things and it sounds like you can't pull in your Yahoo! BASIC mail (you can only do this if you have the paid version)? I'm frustrated. I use my Yahoo! mail for basic business and job correspondences, so I'd like to still keep this account -- but I'd like to avoid having to use multiple websites to retrieve my email. We don't have any tweaks for this? I've looked at the Zoho help and have tried their POP and SMTP settings, but nothing is working...

Thanks,
Dawn