Windows: Missing Remote Desktop Setting (Remote tab)

Missing remote settings. Looks like:   Should look like: Has the license key been installed properly? Reactivate using this method:

Reference: Technet

Linux: Postfix Mail Server

Adding clients that are allowed to relay: Make sure the following line exists in /etc/postfix/

Add IP address to /etc/postfix/access (  OK) Run the following:

Sending a test email from the server: