The e-notification is sent by USCIS after your application and the Form G-1145 was received by them. Usually, such a notification comes within a 24-hour period. This type of notification does not contain any personal information, not even your name. It is used for informational purposes only.
All that is included in the e-notification is the receipt number as well as some information on how to get an update on your status.
Users that are local will get both text and email notification while people who applied from abroad will get an only email notification.
It should be noted that G-1145 is merely an informational form without any legal value behind it.
March 3, 2020