11th Systems Administration Conference (LISA '97)
A Better E-Mail Bouncer
Richard J. Holland
Rockwell Collins, Inc.
Abstract
This paper describes a portable electronic mail bouncer which
sends detailed information back to the sender when a mail message can
not be delivered to it's intended recipient. The bouncer was
originally written to handle a large merger between multiple DNS
domains, and is implemented entirely in Perl5 as a mail delivery
agent. The bouncer operates under the concept of "least privilege" so
it's safe to run directly from mail transport agents such as sendmail.
The bouncer is designed to make the human processes and interactions
in dealing with undeliverable E-mail easier for both postmasters and
end-users alike.
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