Hello!
My client has installed xibo manually and notifications won’t send properly!
I don’t understand how does email system work, i just wanna know how to set for example gmail login and pass and then system will send notifications
How to configure Notifications will depend on your how the CMS has been set up. Below is a link to the Post CMS installation Guide, which will help you to configure your CMS once it has been installed. I would recommend taking a look at the Email Alerts section for more information.