literal name_enable wherever possible, and ${name}_enable
when it's not, to prepare for the demise of set_rcvar().
In cases where I had to hand-edit unusual instances also
modify formatting slightly to be more uniform (and in
some cases, correct). This includes adding some $FreeBSD$
tags, and most importantly moving rcvar= to right after
name= so it's clear that one is derived from the other.
outgoing mail, specifically recipients and relays associated to them.
The main goal is to whitelist mail coming back from those senders and
relays early in the postfix restriction chain, so it doesn't get hit
with any client UCE checks you are using (RBL, helo, PTR, greylisting etc).
WWW: http://mailfud.org/postpals/
PR: ports/144540
Submitted by: Sahil Tandon <sahil at tandon.net>
