Wouldn't dropping the SMTP connection during DATA time be a violation of
protocol? Also, the server would just continue to re-send it (if it's not a
spammer directly sending emails) since it would never receive an error
message and think it should just retry?
Besides, if a spammer wants to tie up bandwidth, I'm sure they can find many
many ways to do this... I doubt Exim would be the first thought on their
minds (besides, that would be quite tracable, and all ISPs would close an
account due to that sort of violation).
Eli.
-----Original Message-----
From: exim-users-admin@??? [
mailto:exim-users-admin@exim.org] On Behalf
Of Wakko Warner
Sent: Monday, February 02, 2004 5:56 PM
To: Philip Hazel
Cc: 'Exim User's Mailing List'
Subject: Re: [Exim] Any benefits to having exim use the SIZE command?
>
> > So if the limit is set at say 5mb, and someone is pumping a 1gb file
into
> > you, exim will read all of it and then refuse it? What happens if the
disk
> > gets full? (I think this is what I meant)
>
> The disk doesn't get full. Exim is reading the data, but throwing it
> away, knowing that it has hit the limit.
Sounds like that could potentially be a DoS if someone decided to just start
chucking vast amounts of data at the machine from various sources. Or it
could just simply eat bandwidth.
--
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