In the tests I've ran so far it appears that any message qmail bounces will
be bounced in it's entirety. So if a 100 Meg attachment is bounced the
whole 100 Megs gets sent back to the sender. My concern is that this could
be exploited as a denial of service attack. Just send my server three or
four 2 gig attachments and let them bounce. This would eat up bandwidth in
both directions as well as use large amounts of disk space (albeit
temporarily.)
I've thought of truncating the message before it's bounced but this still
requires my server to read in the entire message. Any suggestions for how
to handle this?
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David Cunningham
