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When you try to send or receive messages in Outlook 2000, you may receive one of the following error messages:
The connection to the server has failed. Account: 'account name', Server: 'SMTP or POP server name', Protocol: SMTP (or POP), Port: 25 (or 110), Secure (SSL): No, Socket Error: 10051, Error Number: 0x800CCC0E
Unable to connect to the server, Account: 'account name', Server: 'SMTP or POP server name', Protocol: SMTP (or POP), Port: 25 (or 110), Secure (SSL): No, Socket Error: 10051, Error Number: 0x800CCC0E
To troubleshoot this issue, follow these steps:
When you receive of the error messages that the "Symptoms" section of this article describes, make a note of the name of the server referenced in the error message.
Click Start, click Run, and then type TELNET servername, where servername is the name of your mail server.
Click OK. If you cannot connect to the server by using Telnet, there is a network connection problem to your mail server or to your Internet service provider (ISP). Contact your network administrator or ISP to help resolve the connection problem.
If Telnet is successful, click Start, point to All Programs, and then click Outlook Express.
Try to log on to Outlook Express with your Outlook 2000 mail account. If you cannot log on by using your Outlook 2000 account, the problem may be caused by a Winsock or MAPI issue. See contact information later in this article to contact Microsoft Product Support to help resolve the issue. If you can log on using your Outlook 2000 e-mail account, continue to Step 6.
Quit Outlook Express, and then start Outlook 2000.
To remove the existing account, click E-mail Accounts on the Tools menu.
Click View or change existing e-mail accounts, and then click Next.
Click to select the e-mail account, and then click Remove.
Click Finish to close the E-mail Accounts window.
On the File menu, click Import and Export..
Click to select the Import Internet Mail Account Settings check box, and then click Next.
Outlook finds and imports your account from Outlook Express.
Quit Outlook 2000, and then restart Outlook 2000.
Try to log on with your account. If you can log on and send and receive messages, this issue was caused by a corrupted account. If you still receive the error messages after you finish these steps, contact Microsoft Product Support to resolve the issue.
For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.