On Thu, Dec 20, 2018 at 11:31:27AM +0100, Aham Brahmasmi wrote:
> Monsieur Gilles,
>
[...]
> > This will result in smtpd replacing the welcome banner with the message,
> > then dropping the client connection if they don't have a reverse DNS and
> > a matching forward DNS. You can apply the check
Monsieur Gilles,
> helo misc@,
>
> I wrote an article a few days ago:
>
> https://poolp.org/posts/2018-12-06/opensmtpd-proc-filters-fc-rdns/
>
>
> Since then, I implemented the check-fcrdns builtin filter allowing us to
> filter incoming sessions that do not have a valid FCrDNS.
>
> How
