Re: [Sqlgrey-users] (no subject)

[<sql...@xe...>]

On Wednesday April 08 2009 3:39:23 pm Dan Faerch wrote:
> * Replies will be sent through Spamex to
> sql...@li... * For additional info click ->
> http://www.spamex.com/i/?v=25917804
>
> sql...@xe... wrote:
> > There are 2 people that constantly spam us and we cannot get them to
> > stop.  I have contacted their ISP/Mail Providers and them directly, but
> > the emails continue.  (The mail providers just happen to be AOL and
> > Gmail, so it's probably not a surprise they haven't taken immediate
> > action.)  Is there anyway to always greylist specific senders?
>
> The sole purpose of greylisting, is to make sure that the IP-address
> youre talking to, is in fact, a real mailserver.
> A lot of spam is sent through scripts or spambots, that do know know how
> to behave like a mailserver. Greylisting will make sure you never
> recieve these emails. But some spammers use real mailservers and
> greylisting cannot stop these mails. Its simply not what its designed for.
>
> So if youre 2 spammers are using Gmail and AOL's mailservers,
> greylisting is not the answer.
>
> >  I have tried to put these addresses in postfix's access database, but
> > it's almost like they get ignored.  Anything I can do?
>
> As David stated, it should be done in Postfix.
>
> Of the top of my head, you should look at something like this:
> http://www.postfix.org/postconf.5.html#smtpd_sender_restrictions
>
> Something like this in main.cf:
> smtpd_sender_restrictions = check_sender_access
> /etc/postfix/blocked_spammers, permit
>
> then in /etc/postfix/blocked_spammers add one email per line + REJECT.
> Like: evi...@ha...   REJECT
>
>
> But as i said, this is just of the top of my head and untested. :)
>
> - Dan
>
>
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Perfect!  Thanks.  I will look into those links.