Re: [exim] Sender verification failing sometimes

On 2011-06-14 17:57, Zoe \(Medway Hosting\) wrote:
>
> ----- Original Message -----
> From: "Ian Eiloart" <iane@???>
> To: <exim-users@???>
> Sent: Tuesday, June 14, 2011 11:21 AM
> Subject: Re: [exim] Sender verification failing sometimes
>
> Yes it's true and the number of people actually blocking is growing,
> although it tends to be done at firewall level (to prevent DDOS) rather than
> blacklists as such, so whitelisting tends to not be possible for the users.
>

If this were blocked to prevent a DDoS I would have thought that no server would have successfully responded? Tools I have seen for DDoS are placed in front of the servers they are trying to protect.

Cheers,
Mike