Hi thereAlthough my POP3 email does (occasionally) work, I am recieving multiple errors in the Event Viewer as follows...-------------------------------------------------------Source: POP3 ConnectorCategory: DownloadType: ErrorEvent ID: 1023Description:The downloading process for mailbox <domain_name_name [pop3.domain_name]> was ended with one or more errors.For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.--------------------------------------------------------The help link is of no use either, it just opens the help center. I spent an hour finding out how to re-install the help service after SP2 just to find that out too!Rebooting the server fixes the problem temporarilly. The POP3 connector pulls email off the webserver and routes it to Exchange mailboxes.A few hours later though and a user is calling me up saying 'Where's my email?'....The pop3 connector is set to recieve every 15 minutes. (Can that be decreased to 2 minutes?)I have since installed SP3 but was having identical problems with SP2 anyway.I believe I may have my Server/Router configured incorrectly. I will explain my setup.Router = 10.0.0.254 (DHCP disabled)Server = 10.0.0.11 (DHCP server) (Dual Ethernet Ports)Clents = 10.0.0.12 - 10.0.0.253TCP/UDP Ports 110 & 995 are mapped to 10.0.0.11 (Server)Router connected directly to InternetServer connected to Router via EthernetSwitch connected to Server via EthernetClients connected to Switch via EthernetI tried to follow steps to set local IP to 127.0.0.1 (suggested by Edward in a similar post) ...Administrative Tools > Routing and Remote Access > [SERVER_NAME] (local) > IP Routing > NAT/Basic Firewall > Network Connection > Services and Ports > Select POP3 > click Editbut under IP Routing, I only have General and Static Routes as options, not NAT/Basic Firewall. Is my firewall even running then?Should I have the Router as DHCP server? RegardsRoostaar

Although I cannot suggest a final resolution to your problem, I have experienced this error on Windows 2003 SBS as well, and have a few suggestions that may help identify the problem further. First of all, through the Server Manager, Internet and Email, POP3 Connector Manager, Troubleshooting Tab change the Logging Level, under Service logging to Maximum. After applying this, and the scheduled synchronization process has either run a few times, or even if you manually "Retrieve Now" under the Scheduling tab, review the application event log again. For each synch event, if you still see the same message there will be additional error messages identifying which users are not synchronizing. Specifically you will find the following: Source: POP3 Connector Category: DownloadType: ErrorEvent ID: 1036Description:An error occurred during a POP3 transaction to server <pop.domain.com[username@domain.com]>.The error is 10054 (An existing connection was forcibly closed by the remote host.For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Go take a look at the following: http://support.microsoft.com/kb/885685/en-us How to troubleshoot the POP3 connector in Windows Small Business Server 2003 Even through all this, I have found that with each synchronization, 1 or 2 users will "error" out. The problem is that as each individual useraccount is authenticated to the "POP" server, if any one step of the connection process takes too long for an acknowledgement response, the connection is forcibly closed. This could be dependent on Internet bandwidth, traffic/activity. If anyone has information on increasing the "Timeout" of this process, it would surely be of help. DJ