last friday and today we had the same problem, with different Postoffices: Clients could not connect, no error message, the client does not proceed to start, hangs. Webmail worked.

For today I see thousands of these messages in the POA's log:

0612poa.00f:09:46:00 4DD6 Error sending new connection message to handler [8F01]

I don't see these messages for friday.

Any ideas? Anybody has seen this problem?