Outlook error 0x800CCC13 when sending email.

There are not problem when Outlook send email without attachment or attachment below 100KB size, however it show error 0x800CCC13 “Cannot connect to the newtork. Verify you rnetwork connection or modem” when send out email with more than 100KB size of attachment.

The problem still occurs after sfc \scannow, finally the problem solved with these steps.