Author: Reid Priedhorsky Date: To: exim-users Subject: Re: [exim] Avoiding backscatter spam generation when forwarding to
external hosts
On 10/12/11 8:33 AM, Todd Lyons wrote: > On Tue, Oct 11, 2011 at 5:24 PM, Reid Priedhorsky<reid@???> wrote:
>>
>> I have a few e-mail aliases that forward to external hosts. Currently, if
>> the external host rejects a message, Exim generates a bounce message and
>> sends it to the original sender. This is bad because if the external host
>> rejects the message as spam (a common case), then I'm a source of
>> backscatter spam.
>>
>> Thus, if the sender is non-local and the e-mail has a non-local destination,
>> I'd like to send the bounce to postmaster (me) instead.
>
> Chapter 15 of the exim spec. Look for "errors_to".
Thanks, Todd! That's exactly the pointer I needed.
> However you will break legitimate bounces. As long as you understand
> that, I guess it's your system, your rules.
Yeah, I'm not exactly thrilled about that either. But given forwarding
to external destinations that do the right thing and reject spam as
early as possible, I don't see any other way to avoid backscattering. :/
