<lost track of who said this>
Postfix is a Mail TRANSFER Agent; it is not a Mail STORAGE Agent.
Think of
it like a bricks and mortar post office and mail. If mail is
undeliverable,
it is returned to the return address. Once returned, the post office
is done
with it; the post office does not archive a copy.
<snip>
If the mail cannot be returned to the return address, it is for all
practical purposes discarded.
To be just a bit nitpicky, this isn't quite true. If the post office
can't deliver something, and can't return it, it ends up in the "dead
letter office" (now called a "mail recovery center") - where a human
being tries to do something intelligent with it (e.g., open a damaged
package and try to find a useful address), and failing that, they hold
onto it for a while, auction off contents, etc. There's a good article,
with some interesting links, at
http://en.wikipedia.org/wiki/Dead_letter_office
Now, having said that, I'm not sure what they do with "dead spam."
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
