Evan:

Thanks for your kind thoughts:

>> How were you planning to prevent infinite loops?
by explicitly not auto-responding to any message bearing a MAIL FROM of '[EMAIL 
PROTECTED]' as this would be inappropriate
automated behavior given the message to which it would be replying is by definition 
already a bounce.

>> And how would it help anyway? You'll just be asking for a box called "Disable 
>> postmaster@ sender". :)
It would help because the domain part gives us something to work with in terms of DNS 
lookups and spam tests, and certainly I would
not want such a box :)

Again, thanks for your time, and anyone else's thoughts are welcome!

Best Regards,

Chris

----- Original Message ----- 
From: Evan Pearce
To: [EMAIL PROTECTED]
Sent: Wednesday, March 31, 2004 3:54 PM
Subject: Re: [IMail Forum] Next point release of iMail?


On 1/04/2004 at 02:22:59, Chris Langsenkamp wrote:

> Disabling NUL Sender for us stops a lot more junk than it does
> actual bounces, because it seems that most delivery failures are
> identified during the attempt, not after the fact by some return
> message (there are exceptions for a few systems that will accept
> virtually anything and then call back later...gateways maybe? AOL?).

And almost everyone running Exchange.

> Personally, I feel that if a system fully accepted a message, then
> wants to generate a new message back later, it should identify
> itself as [EMAIL PROTECTED] or some such thing.  I'm sure
> there was a time in history when NUL sender could be trusted to be
> legitimate, but facing the onslaught of spam today, it just doesn't
> seem viable any longer.

How were you planning to prevent infinite loops? Your server sends me
a bounce, mine sends your [EMAIL PROTECTED] a bounce for that
message, yours sends mine a bounce for that one, mine sends yours a
bounce for that one...

And how would it help anyway? You'll just be asking for a box called
"Disable postmaster@ sender". :)

Cheers,
Evan


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