Browse to Administration > Notifications > Email Servers
Click Email Servers +
Select either Inbound or Outbound
Inbound Server is being used to handle inbound notifications – such as approval responses – whereas outbound notifications are used for systems notifications
You can find more details HERE
Here an example though. I choose OUTBOUND
Set the relevant SMTP Sever details and click Test Connection
Do the same for INBOUND
Browse to Administration > Notifications > Email Servers > Scenarios
Here you can configure what notifications you’d like to receive
Select any notifications and click Update
By default users will not receive any mail notifications. Login to vCAC with a user. Top right corner, click Preferences and enable eMail notifications
That’s it …