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connections with DATA followed by QUIT

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From:
Jim Winstead
Date:
August 20, 2003 20:41
Subject:
connections with DATA followed by QUIT
Message ID:
20030821034052.GA23064@trainedmonkey.com
in further investigating what exactly is coming into lists.mysql.com,
i'm noticing a rather steady stream of mail attempts from random
addresses to other (single) random recipients where the DATA is followed
immediately by QUIT. (so nothing ends up getting queued, and a '451
Incomplete Data' is returned.)

anybody notice anything similar to this? any clues what it is?

i'm wondering if it isn't supposed to be some sort of (d)dos attack.
(that appears to be pretty ineffective, because it isn't coming in fast
enough to cause problems.)

jim

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