Author: David Woodhouse Date: To: Peter Velan CC: Exim Users Mailing List Subject: Re: [exim] Blocking non-authenticated senders
On Tue, 2007-02-20 at 15:38 +0100, Peter Velan wrote: > I don't see a situation where a foreign server sends me a legit email
> with envelope-from = "localpart@???"?
If there is any external email address for which email is just
automatically forwarded to your systems, and if any of your users send
mail to that address, then it'll happen.
> > - your mail server in turn rejects the forwarded mail because it was
> > not sent via SMTP AUTH
> > - your user will receive an error mail from the forwarding mail server
> >
> > I would stongly recommend not to implement this kind of blocking.
>
> If the scenario you described above is real, then for sure, it would be
> a stupid thing to implement this!
