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OT? /dev/null 5.1.1 email

  • From: Jim Popovitch
  • Date: Tue Jul 05 15:37:58 2005
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Received:Subject:From:To:Content-Type:Date:Message-Id:Mime-Version:X-Mailer:Content-Transfer-Encoding; b=0fHWfMwnUcK7Dlhj7G+uoGOJWtx7PfNTUkVJdviWds8Me0/FwBhHYaaxCTkpoKkQeEoUfh2fwdEeBehUH0ygGCmA8moF0zB1BLXSBBYG/WD7uliG8OCHswIDlnJ21ulFl3uuMK15mw1oW67AUzQzFDMqGg8wmh8S/SSIO24DO0c= ;
<disclaimer>
I know this is an email-only question, however the value of the feedback
from NANOG is greater than elsewhere, imho.
</disclaimer>

Should undeliverable email (5.1.1, User unknown) be directed
to /dev/null rather than responded to?

I was always under the impression that it was nice to respond with a
polite message, however these days it seems that 95% of the polite
responses are going to 5.1.1 addresses themselves.

Tia,

-Jim P.