Re: [Exim] NSOT: rejecting e-mail from lists

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Author: Alan Thew
Date:  
To: dman
CC: exim-users
Subject: Re: [Exim] NSOT: rejecting e-mail from lists
On Tue, 21 May 2002 23:35 , dman <dsh8290@???> said:

> --
> On Tue, May 21, 2002 at 06:16:31PM -0400, Dave C. wrote:
> | On Tue, 21 May 2002, Leonardo Boselli wrote:
> |
> | > One e/mail provider has recently set a strange policy, refusing e
> | > mail from their own users, unless they come from their own servers.
> | > This seems however apply to any message. Inclusive those form
> | > lists.
> |
> | This is a stupid policy. You might want to point out to them that they
> | are rejecting their own users list submissions.
>
> I think they're just not being an open relay. The SMTP error message
> was :
>
>   jose@???
>       SMTP error from remote mailer after end of data:
>       host smtp.katamail.ksmail.it [194.153.172.230]:
>       553 Authentication is required to send mail as
>       <maria@???>

>
> I think the MLM is trying to masquerade itself as the original poster,
> and thus is being denied. The MLM should change the envelope sender
> to refer to itself rather than try and leave the original intact.
>

We see this now and again from MTAs receiving mail from our MLM. Our MLM
does not masquerade, the mail from:<...> will be of the form

owner-listname@???

Alan