Not able to Read all recieved mail from Zoho via IMAP

Not able to Read all recieved mail from Zoho via IMAP

Hello,

I have configured my smart phone (htc) so I can recieve emails via IMAP.
This works fine.

The problem is that emails that I get from other accounts to Zoho via POP3 (for examples emails from my university account), are shown in the Zoho inbox (separately) but do not show up on my cell phone.
My cell-phone only gets the main ***@zoho.com inbox emails.

In other words:

University mail ==> Zoho (Via POP3) ==> IMAP (Smartphone) doesn't work.

Could you please tell me how can I configure it to work with all zoho's inboxes?

Thank you.

Ran.