Windows 10 unable to send mail

Since the release of Windows 10 there have been many reports of people unable to send mail after the update/upgrade. Mostly customers using Microsoft Outlook are the ones affected by this issue.

Regardless of what outbound port changes are made Outlook will throw back an error about not being able to connect to the network or mail server.

Thankfully there is a relatively simple fix for this:

1. Close Outlook and any open applications
2. Click on your start icon and search for cmd.
3. Right click on the cmd option and select Run as Administrator.
4. Type in: sfc /scannow
5. Hit enter
6. Let the scan complete
7. Re-run the scan until there are no errors reported. 
8. Type: exit
9. Hit enter

Restart the machine - open Outlook - the issue should now be resolved.