First of all, i´m not an server expert, so i'll try to explain as clear as i can my problem.
I have a server with Micosoft 2003 Server SBS SP2 and Exchange 2003 which retrieves our corporative mail from a third-party host and delivers it to the user's mail boxes. The PCs of the users are using Office Outlook 2007 to manage their mail. It all worked fine all this time.
Then the server stoped delivering the users mails (we can't either send nor recieve). However, the server is still downloading the incoming mail from the host (the queues are growing). There isn't any error connection between the Outlook and the Exchange server.
There is no warnings or errors in the server's events viewer so i have no more clues to follow.
Trying to resolve the problem i tried to stop and re-start the POP3Conn and SMTP services in the server. I got a time-out error so i tried to stop them using the system administrator stopping the inetinfo.exe application. It didn't work because it automaticly re-started BUT for a few seconds my Outlook client could retrieve the incoming mail from the server.
That's all. I wish i could give you more clues because that's all i know (and i'm not a servers expert).
Thanks in advance !.