Knowledgebase
SMTP error
Posted by - NA - on 13 January 2011 09:41 PM
Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

You may receive this error in your email client settings at some point. In Outlook this is a bug and can usually be resolved by restarting your email client and making sure you have SMTP authentication enabled.

This is not a server problem and is caused by either a miconfigured email client (check your smtp-auth settings), your ISP blocking access to port 25 (you'll need to ask them if they do this) or a DNS problem with your ISP.

To confirm that the mail server is online and responding you can perform the following:

From the 'Start' button click 'Run'
Type in 'telnet yourdomain.com 25'
You should receive something to the effect of:
220-servername.domain.com ESMTP Exim 4.24 #1 Thurs, 01 March 2004
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.

This confirms there are *no problems* with the SMTP server

To confirm the POP server is online and responding:
From the 'Start' button click 'Run'
Type in 'telnet yourdomain.com 110'
You should receive something to the effect of:
OK POP3 [cppop 9.9] at [212.212.212.212]
This confirms the POP server is online and there are *no problems* with the POP server.
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