Re: Mail relaying on postfix using the Jamm environemnt

Hi Max

Thanks for the input - I have a problem here that the users are mobile and 
all are using DHCP and IMAP.

It looks as though the route that Keith has outlined with sasl/saslauth etc 
is the appropriate route to go down here - I'm surprised that postfix 
doesn't have a simple, built-in authenticate via LDAP

Anyhow, thanks again

Best
Buzz



>From: "Max" <[email protected]>
>Reply-To: [email protected]
>To: [email protected]
>Subject: Re: [Jamm-users] Mail relaying on postfix using the Jamm      
>environemnt
>Date: Sat, 22 May 2004 20:25:33 +0200 (CEST)
>
>Hi Buzz
>Take a look at POP-BEFORE-SMTP Mailserver for mobile users with Postfix
>You find it at
>http://www.stahl.bau.tu-bs.de/~hildeb/postfix/postfix_pop-before-smtp_en.shtml
>
>Some cut and past from the page
>POP/IMAP-before-SMTP authorization:
>The user must authenticate himself from the SAME IP he'll later use to
>send his email from. This is only possible during a small timewindow after
>the POP or IMAP authentication. SMTP-AUTH: The most elegant method. During
>the SMTP Dialogue, the sending machine specifies username and password. If
>this authentication is successful, relaying will be permitted.
>
>/ Max
>
> > Hi Guys
> >
> > Back to this list after a good time using Jamm to send mail - a great
> > peice
> > of code.
> >
> > However, I've just hit one problem and although this is technically an
> > issue
> > for the postfix mailing lists, as my whole set up is Jamm, I thought I
> > might
> > try out the issue here first ....
> >
> > I finally decided to try and send an email remotely, while travelling,
> > from
> > my laptop and, of course, when the sent email was sent to my postfix 
>mail
> > server, it bounced back the mail saying it couldn't relay the email -
> > quite
> > rightly.
> >
> > So, after trawling through the howto's on the postfix site, I can see 
>that
> > it's quite easy to set up a tls connection from my laptop (email client)
> > to
> > the server, so all username/password info is encrypted.
> >
> > However, it looks as though the only way of authenticating with postfix 
>is
> > through using sasl. So, the question is ... has anyone set up, or knows
> > how
> > to set up, the postfix main.cf so that relaying will be enabled for the
> > virtual users defined by the jamm/ldap environment instead of sasl?
> >
> > I would be more than grateful for some help on this ... if not, I'll
> > pursue
> > this on the postfix lists and repost the answers here.
> >
> > Best
> >
> > Buzz
> >
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