Having same problem, I think. I am able to retrieve message headers from our Zimbra server, but when I try to read a message, I get
E-mail not retrieved yet. Retrieve now?
And then it says
Connecting to mailbox "<name of mailbox>"
And then that alert disappears and nothing else happens. It's as if I never tried to read the message.
I can also send messages from this account just fine. It's only trying to open individual messages where the problem arises.
By comparison, on my Nokia 6682 I use Profimail and am able to retrieve headers AND full messages. The only difference I can see in the settings between the two apps is Profimail says IMAP whereas the built-in email program on my N95 says IMAP4.
I've been accessing this account two different ways:
1. Cingular's MediaNet (which I guess is GPRS? 3G? I don't know, and can't find the details online) in the United States
2. Various WLANs, including WPA and WEP protected and unprotected