On 06/02/19 17:36, Patton, Matthew [Contractor] wrote:
In Internet-connected SMTP (which is something like 99.9% of
installations) ... The number of people who run mail servers isolated
from the Internet is vanishingly small. Why cater to the oddball
environment where anything goes?
...
T
I got this email, which I thought I set up postfix to block
>From ru...@mrbrklyn.com Wed Feb 6 06:26:12 2019
Return-Path:
X-Original-To: ru...@mrbrklyn.com
Delivered-To: ru...@mrbrklyn.com
Received: from mail.isentia.asia (mail.mediabanc.ws [203.223.144.88])
by mrbrklyn.com (Postfix) wi
When spammers do this to me, I get a bounced mail due to SPF issues since it
really isn't from my server. So maybe something SPF related can do what you
want.
Original Message
From: ru...@mrbrklyn.com
Sent: February 6, 2019 5:45 PM
To: postfix-users@postfix.org
Subject: Stopping acceptence
I asked the same and Vietse Venema answer this:
Postfix 3.0 and later:
/etc/postfix/main.cf:
smtpd_sender_restrictions =
permit_mynetworks
permit_sasl_authenticated
check_sender_access inline:{
{ example.com = REJECT local sender from unauthorized
c
