> This email message was sent to my users and addressed to "undisclosed
> recipients". How was this accomplished and how do I stop this?
There are 3 types of recipients of an E-mail: "To:", "Cc:", and "Bcc:". "To:" is the
intended recipient(s), "Cc:" (carbon copy) is typically for other people who need a
copy of the E-mail (but may not need to read it), and "Bcc:" (blind carbon copy) is
for "hidden" recipients (that the "To:" and "Cc:" people won't see).
In your case, the recipient(s) on your system were Bcc'd. Most spam is sent that way,
as it is a lot faster to send spam that doesn't have customized headers.
You could filter on the "From:" address, but there are a few legitimate mailings that
will use "Undisclosed recipients".
--
-Scott
Declude: Anti-virus and Anti-spam solutions for IMail. http://www.declude.com
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