A POP3 client connects to a Microsoft Exchange Server 2007 Client Access server to access a mailbox that is hosted on an Exchange Server 2003 server. In this situation, the POP3 client does not download email messages. Additionally, the POP3 client receives the following error message:
Your POP3 server has not responded in 60 seconds. Would you like to wait another 60 seconds for the server to respond?
This problem occurs because certain parts of the email messages are lost when the Exchange Server 2007 Client Access server sends the email messages to the POP3 client.
To resolve this problem, install the following update rollup:
2407025 Description of Update Rollup 2 for Exchange Server 2007 Service Pack 3
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.