Geek code words for what you've been seeing lately is a fresh outbreak of a W32.Sober worm. It sends spam with forged return addresses as well as replicating itself. I've gotten about fifty "Sorry, we couldn't deliver your mail to this nonexistant user" message from other people's poorly-configured mail servers this week.
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zvi
(no subject)
Date: 2005-11-30 08:44 am (UTC)