I am newer to exim, so may I ask....
Could this not help also?
Is it possible to write a rule that sees if the email server for this
domain matches the Verisign IP to be dropped. It may solve SPAM with
fake domain names, no?
Sorry to play devils advocate while being a newbie to exim ;)
Regards,
Andres L. Figari
Systems Administrator
Hostito, Inc.
http://www.hostito.com
toll free: 1-888-HOSTITO
phone: 1-415-821-9477
fax: 1-415-462-1801
-----Original Message-----
From: exim-users-admin@??? [
mailto:exim-users-admin@exim.org] On
Behalf Of Dean Brooks
Sent: Tuesday, September 16, 2003 6:05 AM
To: exim-users@???
Subject: Re: [Exim] Verisign pulls a fast one
On Tue, Sep 16, 2003 at 01:25:58PM +0200, Kristian Koehntopp wrote:
>
> On Tue, Sep 16, 2003 at 01:11:00AM -0700, Pat Lashley wrote:
> > >rcpt to: <testtest@???>
> > >550 User domain does not exist.
> > >
> > >[It's an unauthorized relay, Verisign, not a non-existent domain.]
> >
> > I'm a bit surprised that they run a MTA at all on that server.
>
> They have to, or mail queues all over the world will be clogged with
> undeliverable mail.
>
> If you send mail to an invalid domain, there is no MX. The
> mailer will try to connect to the A record, which is
> gratitiously provided by Verisign. If there was no port 25
> connect, that mail will be queued at the sender for 5 days or so
> until a bounce is being generated due to server unreachable.
What an ingenious way to collect sender email addresses from people
trying to reach (potentially sellable) nonexistant domain names...
I wouldn't put it past them.
--
Dean Brooks
dean@???
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