hi willie,

maybe i've missed some mail, but it seems to me you should
configure your sendmail for "SMTP after POP" operation. the
idea is that a user polling some POP box has to supply a
password, thus authentifies himself, so relaying for the users
IP address can be permitted for a specified time period, e.g.
10 minutes.

so a roaming user just has to poll his POP account first, then
can relay mail from the current dialup IP address.

have a look at
http://www.iecc.com/pop-before-smtp.html
for details.

the current eudora qpopper (which is standard for suse) already
includes the logging output needed, so the patch is not needed.
the popauth HACK for sendmail is still needed.

the popauther.pl sub add_new has to be extended for qpopper like
this:

if(!$good && /^([A-Za-z]+\s+\d+\s\d+\:\d+\:\d+).*POP login by user
"([a-z0-9]+)" at \(.*\) (\d+\.\d+\.\d+\.\d+)$/)
      {
        # warn "add_new: qpopper...\n";
        $tstamp = $1;
        $user = $2;
        $ip = $3;
        ++$good;
      }

i've configured all our mail servers this way, and it
works very well.

mfg,
michael balzer

--
2BCom IT Solutions / Hasslinghauser Str. 156 / D-58285 Gevelsberg
Fon +49 2332 7588-0 / Fax -11 / http://www.bbcomp.de
----- Original Message -----
From: "Wilhelm Tesnaar" <TesnaarWfilpro.co.za>
To: <suse-securitysuse.com>
Cc: <willietsai.co.za>
Sent: Friday, September 21, 2001 1:03 PM
Subject: RE: [suse-security] Sendmail
> Hi all
>
> I am having  a problem with allowing a user relaying off my sendmail
> server/firewall. How can I configure my mail server to allow relaying of
> mail for a specific user without it being open to the whole world for
> relaying ?
> This user roams a lot around the world so Ip's are noit static?
> I am running standard Suse linux 7.1
> Help I am desperate!
>
> Regards
> Willie Tesnaar
>
> Regards
> Willie Tesnaar
>
> --
> To unsubscribe, e-mail: suse-security-unsubscribesuse.com
> For additional commands, e-mail: suse-security-helpsuse.com
>
-- 
To unsubscribe, e-mail: suse-security-unsubscribesuse.com
For additional commands, e-mail: suse-security-helpsuse.com

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]