Pop3 ZoHo doens't work with Windows Mobile 6.1

Pop3 ZoHo doens't work with Windows Mobile 6.1

I try to install Pop3 on my Windows Mobile Phone 6.1.(HTC Snap) When I do the settings automatically and manually, I can't receive e-mails from my ZoHo address on my Phone. The only thing I can do is sending e-mails from the Pop3 account.

I tried @gmail.com and @inbox.com. No problems occur.