Author: Giuliano Gavazzi Date: To: Tor Slettnes, Exim User's Mailing List Subject: Re: [Exim] Matching bounce recipients against sender hashes
At 3:39 pm -0700 2004/06/10, Tor Slettnes wrote:
[...] >Moreover, to make it impossible for spammers to circumvent this
>control, I would ideally want to use a secret to encode this hash, and
>the same secret to decode the local_part_suffix of incoming recipients.
> So, for instance, a ${base62:$tod_epoch} expansion will _not_ be what
>I am looking for. [...]
do you seriously think that spammers will try to find a way for you
to get the bounces?
I think you would be safe even not using any encoding at all.
My concern would only be for broken MTA sending bounces to the header
sender (are there any around), or for broken MUA sending replies to
the envelope sender (same question).
