0x800CCC0B Error

Votes: 0

How come I get the following error message? How can I fix it?

Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

In certain cases you may see the following error in your email client settings. In Outlook 2002 this is a bug in the application, which normally can be resolved by doing the following steps:

Closing the Outlook application
Starting the Outlook Application

This is not a server side error and is caused by a mis-configuration of the email client. Some ISP’s block access to port 25 and some related issues that could cause this is: using port 26 instead of port 25 or a DNS problem with your ISP.

To confirm that the mail server is online and responding, you can do the following steps:

Within Windows Click “Start”
Then “Run”
Type in “CMD” and hit “Enter” on your keyboard
In the black window, please type: “telnet yourdomain 25”
You should get something like is displayed below:

220-yourdomain.com ESMTP Exim 4.52 #1 Wed, 23 Aug 2006 19:26:11 -0400 220-We do not authorize the use of this system to transport unsolicited,

220 and/or bulk e-mail.

If you get something like the above, this means that the mail server is working fine.

We will try to see if the POP server is working.

Now, please close this window, and repeat steps 1 – 2 again.
In this box, please type: “telnet yourdomain.com 110”
You should get something like what is noted below

+OK POP3 [cppop x.x] at [xx.xx.xx.xx] (yourdomain.com)

4. This means that there is no error with the POP server.

Additional Resources:

http://support.microsoft.com/default.aspx?scid=kb;en-us;827149

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