On 23 Nov 2011, at 14:27, Always Learning wrote:
>
> On Wed, 2011-11-23 at 14:22 +0000, Mike Cardwell wrote:
>
>> Yes, it is. You should never rely on the sender being able to see the
>> rejection message that you supplied.
>
> How does one convey anything meaningful to the sender ? Apart from
> composing a separate email to them ? And can that be done in ACL RCPT ?
>
It can be done by generating a bounce message. However, you should not do that unless you are sure the sender address is accurate. For example, if you have an SPF pass, or a good DKIM signature.
You could argue for bouncing freely into domains that don't publish SPF records at all, but I won't ;^)
> --
> With best regards,
>
> Paul.
> England,
> EU.
>
>
>
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