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Outlook 2000 and POP3 Connectivity

By JeaneM ·
Some of our users get an error message when they press F5 or "Send/Receive" button in the Outlook 2000. The error message is:

"The POP3 server name you specified cannot be found. Please check the name and try again"

The POP3 server name is correct and the Internet connection is fine. The user needs to restart the Outlook 2000, or sometimes need to restart the Windows to solve the problem.

Thru the command line, we can ping the server and also access it.

Any help would be appreciated

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by ctmoore1998 In reply to Outlook 2000 and POP3 Con ...

GO to a command prompt at one of the 2K workstations. At the prompt do a TRACERT on the pop3 mail server that is having problems ie mail.yahoo.com this will give you the IP Address of the mail server try putting the IP address for the mail server in the server properties of the POP3 acct. If this solves your problem with connecting to the mail server then the real issue on the workstation is DNS. And you will have to troubleshoot the DNS resolution of the workstation.

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by ctmoore1998 In reply to

From your additional comments it really does sound like a DNS issue try my suggestion and see if the problem is resolved.

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by ctmoore1998 In reply to

Go into the properties for the NIC and in the advanced settings change the media or speed setting from auto or HW default to 100 half duplex (there may be to values for speed and duplex modes) if problem persists try 10 half {this may require that you reset the speed of the switch if you are connected to a managed switch} see what happens with manual speed selection, also if INTEL NIC look at the adpative technology property and disable if enabled.

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by JeaneM In reply to Outlook 2000 and POP3 Con ...

ctmoore,

Thanks for the suggestion. We have ruled out DNS as problem. Outlook wouldn't connect using the IP address or the DNS. Anything else?

Jeane

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by Spring In reply to Outlook 2000 and POP3 Con ...

1. Telnet to your mail server on port 110 and 25 using ip and the FQDN. If you can, then the problme is at the application layer, i.e. Outlook and not at the network layer, i.e. this is not a connectivity issue. If you can't telnet to either port, your firewall and/or anti-virus if you have them could block this.

2. Because you have mentioned that it's happing to "some users" look to see if your mail server is running properly as it may be a latency issue.

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by JeaneM In reply to Outlook 2000 and POP3 Con ...

Note: We do not have our own mail server, we use an outside service. Also, this is not a one time problem. A user can connect just fine at 8:00 am, then click "Send/Receive" at 8:30 pm and get the error. Close Outlook, wait 15 minutes, then reopen and it works fine for a while. Some days it happens a number of times, some days not at all. It seems to happen to some users more often than others. More often to those that clic "Send/Receive" versus those who just let Outlook run. Most here are set to check for mail every 10 minutes.

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