From postfix-users  Thu Sep 12 17:42:45 2019
From: Chris Wedgwood <cw () f00f ! org>
Date: Thu, 12 Sep 2019 17:42:45 +0000
To: postfix-users
Subject: Re: Mail forwarding through a relay
Message-Id: <20190912174245.GA32586 () aether ! stupidest ! org>
X-MARC-Message: https://marc.info/?l=postfix-users&m=156831052628963

> but note in the DMARC record that you quote: ' p=none': Gmail is
> telling other servers *not* to block (or quarantine) emails from
> @gmail.com that do not obey SPF or DKIM rules. Yahoo by contrast:
>
> # dig +short _dmarc.yahoo.com TXT
> "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_y_rua@yahoo.com;"

IME some sites will still block or quarantine.