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Date:      Tue, 24 Jan 2023 20:31:03 +0100
From:      Juraj Lutter <otis@FreeBSD.org>
To:        Michael Grimm <trashcan@ellael.org>
Cc:        freeBSD ports <freebsd-ports@FreeBSD.org>
Subject:   Re: postfix' blacklistd patch
Message-ID:  <40BAFF53-D547-4059-AE88-E5E8A5F0EF2B@FreeBSD.org>
In-Reply-To: <4EC5136F-0692-460C-85B8-BA3BF5FA728E@ellael.org>
References:  <4EC5136F-0692-460C-85B8-BA3BF5FA728E@ellael.org>

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> On 16 Jan 2023, at 16:49, Michael Grimm <trashcan@ellael.org> wrote:
>=20
> Hi,
>=20
> I wonder if the following condition for triggering blacklistd is =
appropriate:
>=20
>=20
>        /* notify blacklistd of SASL authentication failure */
>        pfilter_notify(1, vstream_fileno(state->client));
>        return (-1);
>    }
>=20
> If I am not mistaken blacklistd will become notified even after a =
'Temporary authentication failure'.=20
>=20
> Has this been intended?


Yes, because even an temporary failure could be a result of a =E2=80=9Cbru=
te force attack=E2=80=9D.

=E2=80=94
Juraj Lutter
otis@FreeBSD.org




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