Yeah... you explained it very well there -- thanks.
--
Juha
:: -----Original Message-----
:: From: Dave C. [
mailto:djc@microwave.com]
:: Sent: Tuesday, 14 August 2001 11:19
:: To: Juha Saarinen
:: Cc: 'Eric Bullen'; Phil.Pennock@???; exim-users@???
:: Subject: RE: [Exim] Nice way to cut down on spam.
::
::
::
:: You do realize the difference between the:
::
:: 1. Envelope sender (Not necesarily visible in any header)
:: 2. Various Header sender addresses (From:, Sender:, Reply-To)
:: 3. The sender-host.
::
::
:: If I connect to an SMTP server and say:
::
::
:: HELO WHATEVER
:: MAIL FROM:<johndoe@???>
:: RCPT TO:<juha@???>
:: DATA
:: From: friend@???
:: To: friend@???
:: Subject: spam spam spam
::
:: Hi there! Make money fast! Buy my product! blah blah blah!
::
:: .
:: QUIT
::
:: 1. in this case is johndoe@???
::
:: The only item that fits 2. is the "From: friend@???"
::
:: 3. Is determined by the IP address of the host I connect to your host
:: from..
::
::
:: sender_reject blocks based on 1.
::
:: This email would NOT be stopped by "sender_reject=friend@???"
::
::
