Why Outlook error 0x800ccc78 occurs?

Lisa Brown26 May, 2020Computer & Internet

Outlook gives Outlook error 0x800CCC78 when sending an email. This error message means your email message couldn't be sent. To mend this, you would like to form a straightforward change to enable SMTP server authentication within the email client you're using. SMTP authentication is typically switched on by ticking a box called my server requires authentication within your email program's settings.