Do not disable Windows Defender or Windows Firewall. They are
100% compatible with Windows Mail.
Error 0x800CCC19 is a server time-out. That type of error is
usually caused by interference from a non-compatible antivirus.
As a minimum, email scanning in the antivirus must be turned off,
although that may not be sufficient to eliminate all bad effects.
In a worst case scenario, your antivirus may need to be uninstalled.
If turning off your antivirus email scanning function does not resolve
your problem, consider upgrading to Windows Live Mail, because it
is less prone to suffering bad effects from overly intrusive antivirus
programs:
http://get.live.com/wlmail/overview
Email scanning in any antivirus must be disabled, for reasons
explained here:
http://thundercloud.net/infoave/tutorials/email-scanning/index.htm
