Originally Posted by till
Ok, then outlook is most likely not connecting at all or not to the correct server. Please try to use the IP address of the server as pop3 server address in outlook.
Sorry for the delay in replying back to this and many thanks for the assistance so far, but this doesn't change anything with the results.
I tried the IP address of the server, mail.servernamehere.us and plain old servername.us.
All of which gave me the same result that Outlook appeared to connect and the test message was sent but no mail is being downloaded from the server and there are no entries in the mail log files showing anything helpful.
This server is behind a router and pop, imap and smtp ports are all forwarded to the server in question and logging in through squirrelmail shows the messages that outlook sends as a test message.
This is really stumping me.