But if you do the following to your mail server to test with the
verify_recipient configed...
telnet mail.server.com 25
helo its.me.com
mail from: <my@???>
rcpt to: <some@???>
It will give you something close to the following error inside of the smtp
session...
USER some does not exist
This tells the email server relaying to this one that it doesn't exist. I
think it would only clog if the target email server simply dropped the
connection, because it would retry until successful. But if it rejects
rather than drops, then wouldn't it do something different than fill up the
queue?
Though, you may be right. If your mail relay has already accepted the
message and it is queued to deliver to your target host, and the target host
says that address doesn't exist, then it may queue the bounce message
forever. That's very similar to my problem... :(
Sincerely,
Rick Duvall
----- Original Message -----
From: "Matthew Palmer" <mjp16@???>
To: <exim-users@???>
Sent: Wednesday, June 18, 2003 4:35 PM
Subject: Re: [Exim] Spammer spoofing as a nonexistant user on my system!
> On Thu, 19 Jun 2003, Matthew Palmer wrote:
>
> > On Wed, 18 Jun 2003, Matthew Byng-Maddick wrote:
> > > The thing to do is to not accept the messages in the first place. Then
> >
> > Do you have any rules to do this in Exim? I'm living with the same
problem,
> > though on a much lower scale, and I'd love to be able to reject DSNs to
> > non-existant users, but Exim doesn't appear to do it.
>
> And then the answer drops into my lap. Which, as it turns out, I can't
> implement anyway because I've got a chain of mail hosts due to some
majorly
> fscked up network design issues, where the outside one doesn't know who's
> going to get mail, and putting recipient_verify on the inner one would
> simply clog the queue on the outside one. Arrgh!
>
>
> --
> -----------------------------------------------------------------------
> #include <disclaimer.h>
> Matthew Palmer, Geek In Residence
> http://ieee.uow.edu.au/~mjp16
>
>
>
> --
>
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>
>
