A connection abort was caused by the server or some software in between (e.g. firewall, proxy). Turn off any proxy (check if your antivirus software installed a proxy) and firewall for testing.
This error results of invalid DNS settings. To solve it add the local server's IP to our hosts file (C:\Windows\System32\drivers\etc\hosts):
Then restart "Microsoft Frontend Transport" and "Microsoft Exchange Transport" services.
This error may occur if you only have 1 domain controller and put a router as secondary DNS server on all configurations.
Simply remove the secondary DNS which does not point to the internal DNS/Domain Controller.
Forwarding typically would be handled by the DNS servers in your environment, so a secondary public DNS would not be configured in a typical production environment.
If this does not correct the error, try to create a reverse lookup zone on the DNS server.