Another SMTP listening on submission port is not enough.
It must not accept non authenticated mails (and probably force to be tls),
because a spammer can easily bypass the RBL checks on 25 and send his crap
over the submission port.
Unfortunately AFAIK there's no way with current qmail-smtpd patched server
to do this.
With this combined patchset http://qmail.jms1.net/patches/combined-6c5.shtml
and following http://qmail.jms1.net/tls-auth.shtml you can force TLS and
authentication in qmail-smtpd.
I'm trying that with the qmail-smptd patched against that combined patches
and with the toaster, but with no luck until now.
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David Sanchez Martin | [EMAIL PROTECTED]
Administrador de Sistemas | http://www.e2000.es
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-----Mensaje original-----
De: Eric "Shubes" [mailto:[EMAIL PROTECTED]
Enviado el: miércoles, 08 de noviembre de 2006 16:15
Para: [email protected]
Asunto: Re: [qmailtoaster] RBL blocks my roaming users
IOW, set up an additional SMTP process which doesn't use RBLs and listens on
whatever port, and have the roaming (or all) users use the whatever port?
Do we have a wiki TNT for that?
David Sánchez Martín wrote:
> A better and straightforward solution for this kind of stuff is
> enabling submission port (http://www.ietf.org/rfc/rfc2476.txt).
>
> That won't let spammers or wrong doers pass, and your relay users
> won't be blocked by a RBL anymore.
>
> IMHO this is the simplest and safest way.
>
>
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
> |
> David Sanchez Martin | [EMAIL PROTECTED]
> Administrador de Sistemas | http://www.e2000.es
> <http://www.e2000.es/>
> E2000 Nuevas Tecnologias |
> |
> E2000 Organizacion de Empresarios | Tel : +34 902 19 61 77
> Mediadores de Seguros |
> |
> Agustin Bravo Esquina Calle C |
> 33120 Pravia Asturias Spain |
> |
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
>
>
>
>
> ________________________________
>
> De: It Support @ 011 Computers Inc.
> [mailto:[EMAIL PROTECTED]
> Enviado el: miércoles, 08 de noviembre de 2006 15:06
> Para: [email protected]
> Asunto: RE: [qmailtoaster] RBL blocks my roaming users
>
>
> It is not spamcop but, in his case, list.dsbl.org
> <http://list.dsbl.org/> is the one that needs to be excluded.
>
> I was asking same thing couple weeks ago, but no real life solution yet.
> Look for "How to skip RBL check after successful SMTP AUTH"
>
> Solution is that roaming user first has to be authenticated via SMTP.
> After successful authentication, his IP should be excluded from RBL
> for next couple minutes.
> So some patch needs to be implemented, like this one here
> http://xs3.b92.net/tomislavr/qmail.html
>
> I did not have time to test this, but I do believe that this would be
> solution here.
>
> Hope this helps.
>
> Dejan
>
--
-Eric 'shubes'
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