RE: SMTP AUTH policy

["Marek Kowal" <marek.kowal@portal.onet.pl>]

listadminBob@portal.onet.pl has SMTP AUTH option turned on and
compulsory, if you will try to send email from his address through our
MX, you will get "authorization required" and we will reject your
letter. In case I didn't explain the situation correctly: the lists are
external to our site, thus the mail should come from
listadminBob@somewhere.else.com.

Thx,
marek

-----Original Message-----
From: Jeff Warnica [mailto:jeffw@chebucto.ns.ca] 
Sent: Wednesday, June 02, 2004 10:28 PM
To: Marek Kowal
Subject: RE: SMTP AUTH policy


Perhaps. But again how is:

randomuser@somewhere.com sending to ===> marek.kowal@portal.onet.pl any
different then listadminBob@portal.onet.pl ===> your-mlm@portal.onet.pl
?

How can I send you mail right now? I'm not AUTHing to your server.

On Wed, 2004-02-06 at 22:22 +0200, Marek Kowal wrote:
> Until the compulsory SMTP AUTH was introduced, that had no difference 
> at all. Now, that the policy is in place, individual users switched 
> immediately, as they couldn't send any emails at all. But the the list

> admins are ruluctant to swich - usually they send the response back to

> the users similar to this one: it was working until now, it is still 
> working for most of the users, it is the problem of your site, not
ours.
> After I nail them down they offer this stupid solution to let the 
> letters thru if the receipient belongs to my site. I am strongly 
> against it, but still - one might be mistaken ;-) Hence I am asking 
> your opinion.
> 
> Cheers,
> marek
> 
> -----Original Message-----
> From: Jeff Warnica [mailto:jeffw@chebucto.ns.ca]
> Sent: Wednesday, June 02, 2004 10:12 PM
> To: Marek Kowal
> Cc: zmailer@nic.funet.fi
> Subject: Re: SMTP AUTH policy
> 
> 
> I don't see how this has anything to do with SMTP Auth... Or at least 
> it shouldn't. How is this different from any random (non-list) user 
> sending mail to one of your users?
> 
> > post. As a result of SMTP AUTH policy, such connections are 
> > rejected, since obviously:
> > 
> > (reason: 530 4.3.0 Not authorized to send from this e-mail address)
> > 
> > When I point that out to the list admins, they claim that the site 
> > should accept messages with rcpt to: <> pointing to the users of the

> > site, no matter what the sender is. This in my opinion is 
> > inacceptable, since it enables the spammers to send the spam as long

> > as they introduce themselves as the users of the site.
> 
> 
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> 
> 



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