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Adrian Midgley wrote: | On Thursday 08 July 2004 22:18, Simon Waters wrote: | | |>Mail to non-existent users should bounce, so that people know the email |>wasn't delivered. | | | There is the slight problem that bouncing confirms there are actually some | real addresses around the dud one.
It doesn't matter - it could still be a genuine email with a mistyped address - email systems should be operated for the benefit of genuine email users.
If the spammers took any notice, then issuing the appropriate reject should reduce spam to non-existent addresses and I see precious little evidence of this.
The whole design behind SMTP is that genuine mail is either delivered, or returned to sender.
Antispam solutions (or any other change) that breaks this model should be eyed with caution.
Indeed even antispam solutions that comply with this model can cause issues, such as when I switched on Brightmail on my Demon account and the bounces it sent caused my GNU mailing list subscriptions to be suspended (it was bouncing the spam from the bug reporting address (open mailing list) which triggered the "too many bounces from this address rule" in mailman).
I fear the reason Alan doesn't get many complaints is that it doesn't happen often, and people are resigned to email being less reliable these days than it was a few years back before the spam and antispam solutions appeared. -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Debian - http://enigmail.mozdev.org
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