What's this 'Antispam UOL'

[Yang Xiao]

On 3/8/06, jludwig <wralphie at comcast.net> wrote:
>
> On Tuesday 07 March 2006 22:52, Parameshwara Bhat wrote:
> > Dear List,
> >
> > Nowadays I regularly recive replies to my postings from 'AntiSpam UOL
> > <petsupermarket.sspam at uol.com.br>'.Though there appears to be
> discussions
> > on this on the list,having not followed from the beginning,I could not
> > make any sense of it.
> >
> > If the full header is listed,message seems to go from one shadow5 to
> > uol.com.br whose antispam returns the message.Produced below.
> >
> >       Received:       from shadow5 (unknown [172.26.5.186]) by
> sauron6.uol.com.br
> > (Postfix) with ESMTP id BECC26C2261 for <peebhat at gmail.com>; Tue, 7 Mar
> > 2006 04:46:39 -0300 (BRT)
> >
> > Who is this shadow5 (172.26.5.185)?How my message went to this server?
> >  From gmail SMTP or fedora-list server? or from my ISP on the way?
> >
> > Thanks a lot.
> >
>


I don't understand this, why dcoesn't the list owner blacklist the site on
their server instead of telling subscriber to do it themselves?
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