After installing a version ServiceDesk Plus on my server  We faced these Issues:

1- Although Mail Settings are correct and Notifications Settings are correct the system didn't notify me on any operation (send ticket , ticket closed ,...)

this is screen shot for mail settings

and this is a screen shot for notification settings

2- after Enabling  "Pass-through" Authentication [ Single Sign-On ] 

 From Active Directory Settings I get a blank screen on the browser every time I try to enter the system

and this is a screen shot for blank screen we faced

Thank you in advance.