Re: [exim] SPAM - Bounce

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Author: Phil Reynolds
Date:  
To: exim-users
Subject: Re: [exim] SPAM - Bounce
On Sat, 25 Jan 2014 23:18:25 +0100
Heiko Schlittermann <hs@???> wrote:

> Hi,
>
> Leandro do Nascimento Bernardo <leandro.uee@???> (Fr 24 Jan
> 2014 14:24:58 CET):
> > Hello guy's
> >
> > I need help for drop all bounce messages.
> >
> > Any suggestions?
>
> You may put there an ACL for dropping bounces.
>
>
>     begin acl
>         …
>         acl_check_rcpt:
>             deny senders = :

>
> But, I'm not sure if this is a good idea. How do you want to handle
> legitimate bounces?


My first thought was "Divvent dee that, man!" - for the reason you
suggest.

> At least you should be sure to only reject bounces to unknown users.
> But instead of this it's more simple just to reject any message to
> unknown users.
>
> If you're tired of getting bounces, you should read the spec about
> BATV/prvs and implement it. Dropping bounces without further
> investigation is not a good idea, they may contain valuable
> information for your users (if they sent messages and expect somebody
> to answer OR a bounce.)


I got a heck of a lot to real addresses, with no real trigger mail. I
found that checking SPF helped - though I realise this is not
necessarily the answer and may cause further problems.

--
Phil Reynolds
mail: phil-exim@???
Web: http://phil.tinsleyviaduct.com/