Not getting some mail in zoho web mail after configuring the same business mail with blackberry

Not getting some mail in zoho web mail after configuring the same business mail with blackberry

Guys,

I have first configured my business mail id with zoho "contact@rudraexport.com".

Then using pop i have configured my blackberry with server "pop.zoho.com".

Then when i was not logged in my zoho mail account in my desktop. I used to see mails in blackberry handset. when i logged into zoho mail i cant see those mails which came during logged off. 

Can you please help me in the same.

Thanks,
Santhosh Kumar