In case you are getting 0x800ccc0b error whereas sending an e-mail then it is best to first verify the server configuration data in MS-Outlook. On this case of error, usually consumer not capable of ship the e-mail as a result of the 0x800ccc0b error in Outlook usually happens as a consequence of fallacious SMTP server particulars.
Error Message: An unknown error has occurred. Account: ‘ firstname.lastname@example.org’, Server: ‘mail.yourdomain.com’, Protocol: SMTP, Port: 25, Safe (SSL): No, Error Quantity: 0x800CCC0B
Take a look at the straightforward resolution to repair the ship/obtain Outlook error 0x800ccc0b.
Click on on the “Account Settings” underneath the “Instruments” menu.
Within the new account setting window, click on on the “Electronic mail” and make a double click on on the e-mail tackle by which you aren’t capable of ship emails.
By double click on different pop-up window will seem, now click on on “Extra Settings” buttons.
Go to the Outgoing Server tab and choose the “My outgoing server (SMTP) requires authentication” checkbox.
My outgoing server (SMTP) requires authentication.
Helpful hyperlink: go for Microsoft Outlook 2016 download here.