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Hey there. I just updated to Outlook 2k3 when trying to connect to my Kerio mail server, I get an error message when using the "Test Account Settings" button in Outlook. The error message says I am not able to log on to incoming mail server (POP3) and will not allow me to send a test email.

I can logon to the webmail side of things and everything works fine from the same server. So, it must be something up with Outlook.

This has not been a problem in the past with the current configuration of my mail server. I have POP3 running on 110 on the mail server but it doesn't seem to be passing information. Any ideas on what could be causing this issue?

The machine I am running Outlook on is NOT firewalled. The server of course is and I have confirmed that both my POP3 port and HTTP ports are open on that firewall. The services are also running in the mail server.

Any assistance anyone can give would be GREATLY appreciated.



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Open a command prompt on your machine with Outlook 2003 installed and type of the following command:

telnet 110

Also do the same thing but with port 25. If you get connection errors, then this indicates a connection issue between your computer and the MailServer.

Also try both the DNS name and the IP address. If you are able to connect with the IP but not the DNS name, that would indicate a DNS issue.

Kevin Trumbull
Kerio Technical Support Team Leader
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