Author: Ian Eiloart Date: To: Adam Funk, exim-users CC: Subject: Re: [exim] Re: bounce messages and their potential misuse
--On 30 March 2006 16:49:11 +0100 Adam Funk <adam00f@???> wrote:
>
> I'm thinking of MTA(n-1) as a department's outgoinggmailhub or ISP's
> smarthost. It's usually configured to accept anything from within the
> IP range it's supposed to cover, and use DNS MX to pick MTA(n) for
> non-local recipients.
>
> That's the sort of situation in which I was under the impression that
> MTA(n-1) would often be unable to get the recipient-verify callout
> information. Have I got this wrong?
No, but that's no different from making a direct attempt to deliver the
mail. Your smarthost shouldn't accept mail from non-local addresses, unless
authenticated. You should be able to punish local spammers.