This article was previously published under Q312349
When you attempt to send an e-mail message in Microsoft Outlook 2002, you may receive the following error message:
A TCP/IP error occurred while trying to send data to the server Account: 'AccountName' SMTP Server: 'ServerName' Error Number: 0x800ccc13
You may be able to send mail in Microsoft Outlook Express without error.
This behavior may occur if the versions of Outlook Express and Microsoft Internet Explorer are not the same. Outlook 2002 relies on several files that Outlook Express installs and uses.
To resolve this behavior, either upgrade to the most recent version of Outlook Express and Internet Explorer, or install the version of Outlook Express that matches the version of Internet Explorer that is installed on your computer.
Upgrade to the Most Recent Version
Start Internet Explorer, and then download the latest version of Internet Explorer from the following Microsoft Web site:
Install the Version of Outlook Express That Matches Your Version of Internet Explorer
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
Use the Add/Remove Programs utility in Control Panel to remove the existing version of Outlook Express.
Delete the contents of the C:\Program Files\Outlook Express folder, but do not delete the folder itself. Follow these steps:
Click Start, point to Programs, point to Accessories, and then click Windows Explorer.
In the Folders pane, click the plus sign (+) to expand the My Computer folder, and then expand the Local Disk (C:) folder.
Expand the Program Files folder, and then expand the Outlook Express folder.
Select all of the files in the Outlook Express folder, and then click Delete.