Why do I get this error? Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

ou 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 a miconfigured email client, ISP's blocking access to port 25 and using port 26 instead 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-server.dnsprotect.com ESMTP Exim x.xx #1 day, xx Month 2004 time
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 x.x] at [xx.xx.xx.xx] (yourdomain.com)

This confirms the POP server is online and there are *no problems* with the POP server.

  • 2 Users Found This Useful
Was this answer helpful?

Related Articles

How can I add a mailing list?

1. Log into cPanel and click the "Mailing List" icon under the Mail section. 2. Enter the list...

Do you support boxtrapper?

The Support for Boxtrapper has ended but we do support Spam Assasin on all our cPanel Hosting.-...

How can I check an email address disk usage/quota?

1. Log into your cPanel and click the "Email Accounts" icon under the Mail section. 2. At the...

How do I access webmail?

1. Open up your favorite web browser2. In the address bar type yourdomain.com/webmail3. Under...

How do I change the password for an email address?

1. Log into your cPanel and click "Email Accounts" under the Mail section. 2. The bottom of...