Is admin@example.com a real email?

is this email really send to user (here red highlighted one)
i am getting confused, why email send through this email, if i have a default email setup in “Email Account”, say xyz@gmail.com

Hello @Rajat96318 ,

Please Open Email account which you have setup and check a check box of Always use this email address as sender address and send one email again. It will take your email id as a sender.