On Tue, 4 Jun 2019, Edouard Guigné wrote:
My question was relative to the following problem :"Lot of SPAM mails are being received where from and to address is myself and the mail has contents which are dirty/bad." I ask if reject_unauthenticated_sender_login_mismatch can solve this issue
And as Bill Cole already told you, your problem relates to "From:" and "To:" *headers* of the e-mail, and not the envelope sender, to which the postfix restrictions apply.
