Hi,
I have 2 BlackBerry Devices which check the IMAPS Server for new emails.
One accout works perfectly. The other BlackBerry device checks for new emails every 15 minutes, but it finds no new mails (and there are).
The BlackBerry devices have their one public IP.

From the dovecot logs, I see that the login was successfull but it seams that the imaps server reported no new email to the client which checked for new emails.

Does anybody know what could it be?

What means from the point of view of the server & client a read/unread mail?

Thanks,
ddaas