[exim] How to compare FROM header against SMTP account authe…

Hi all,
first of all, sorry if this question has been asked before and hope you can
guide on where to get this

In my server SMTP has to be authenticated in order deliver emails. But I
want to deny any SMTP deliver if the FROM is not the same as the account
that has authenticated the deliver, is it possible?

Thanks in advance.

Best Regards,

Sergio Cabrera