Outlook Express sends mail 0x800CCC0D error resolution

I can't send email after setting up Outlook Express. The following message appears: The host "smtp.mail.126.com" could not be found. Please check if the server name entered is correct. Account: "P0P3.mail.126.com", Server: "smtp.mail.126.com", Protocol: SMTP, Port: 25, Secure (SSL): No, Socket Error: 11004, Error Number: 0x800CCC0D . But when I enter the mailbox, everything is normal. What is the reason? How to solve?

A: Outlook Express 0x800CCC0D, and common 0x800CCC0E, 0x800CCC0F errors, are often caused by email scanning by anti-virus software. Therefore, you can try turning off the anti-virus software's email scanning function to see if the symptoms can be resolved. In particular, for users who have Norton anti-virus software installed, Norton's mail protection and program-based virus blocking (Script Blocking) function is more likely to cause this phenomenon. Generally, after these two functions are disabled, the problem no longer occurs.