"The host could not be found" error message when you send or receive messages in Outlook 2000

If you try to send or receive messages, you may receive an error message, similar to the following error message, that states that your Post Office Protocol version 3 (POP3) or Simple Mail Transfer Protocol (SMTP) host could not be found: Additionally, you cannot ping or establish a Telnet connection to the mail server.

This behavior can occur if you have Zone Labs firewall software, such as ZoneAlarm or ZoneAlarm Pro, installed on your computer. These programs can prevent communications with your mail server.

To resolve this behavior, remove the Zone Labs firewall software from your computer. To do this, see the program documentation or contact Zone Labs at the following Zone Labs Web site for more information:

For more information about ZoneAlarm or to contact Zone Labs, see the following Zone Labs Web site: For additional information about how to troubleshoot a similar error message when you use Microsoft Outlook on a computer that is configured as an Internet Connection Sharing (ICS) client, click the article number below to view the article in the Microsoft Knowledge Base: For additional information about how to troubleshoot a similar error message with Microsoft Outlook Express and ZoneAlarm, click the article number below to view the article in the Microsoft Knowledge Base: The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

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