Article ID: 274456 - View products that this article applies to.
This article was previously published under Q274456
For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/257824/EN-US/ )OL2000: Differences Between Outlook and Outlook Express
When you try to send or receive e-mail messages in Outlook Express, you may receive an error message that your Post Office Protocol 3 (POP3) or Simple Mail Transfer Protocol (SMTP) host could not be found (error code 0x800CCC0D).
This behavior can occur when POP3 or SMTP server account information is incorrect on your computer. If your account information is correct, behavior can be caused by the connection to your Internet service provider because the e-mail servers may be unavailable for reasons such as maintenance.
To resolve this behavior, verify that you are using the correct account settings for your assigned e-mail servers. You can obtain the server information from your ISP or local area network (LAN) administrator. To verify the settings for your Internet E-mail account:
How to Ping the E-mail ServersWhen you use the Ping command to ping the e-mail server, you can determine if you have a valid Internet or LAN connection between your e-mail program and the server. If the Ping command works, you are connected to the server. If the Ping command does not work, your network administrator or ISP may have blocked ping replies from the server and you may be connected. To ping your server:
When to Contact Your ISPIf the Ping command does not work, contact your ISP or LAN administrator to verify that there is not a problem with the e-mail servers or that they are not undergoing maintenance.
This behavior can also occur if you have a firewall configured in such a manner that it prevents communications with your e-mail server. Some firewall software, such as ZoneAlarm, allow you to restrict outbound as well as inbound communications between your programs and the Internet. In such cases, you should refer to your firewall software documentation about how to enable Outlook communications with your e-mail server.
Article ID: 274456 - Last Review: May 7, 2007 - Revision: 3.2