I am trying to send mail using postfix, I have set up all the things, the mail is going, I have set up the email using my domain i.e.
When When I am using the following code
ehlo xyz mail from:<email@example.com> rcpt to:<firstname.lastname@example.org> data Subject:Test mail from postfix
This mail is going to inbox of pqe, but the sender address is email@example.com, then what is the use of this
firstname.lastname@example.org or this mail from ?/