Thank you all for the help. The one fact I forgot to mention (and its the
most inportant and I apologize) this server should only allow customers to
send email through it from outside the network. This is not our main mx/smtp
servers. The configuration emtpd for AUTH_REQUIRED is what I needed. I read
the documentation, but didnt catch it. Sorry all.
Thanks,
William
On Thu, Apr 17, 2008 at 10:06 AM, Jeff Jansen <[EMAIL PROTECTED]>
wrote:
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> MrOzone <[EMAIL PROTECTED]> wrote on 2008-Apr-18:
> > Ok that's good. But the problem that I'm seeing is someone externally
> > can connect to this box and spam to our local domain. But to spam
> > through this box you need to auth. Is it possible I am just missing a
> > setting to say sendine internaly or externally needs to auth?
>
> What do you mean by "spam to our local domain"? Courier won't stop
> anyone from sending spam if the recipient's address is valid. But
> courier will reject mail to non-existent users and will stop you from
> relaying if you haven't authenticated.
>
> Telnet into your box on port 25 and send a "RCPT TO" command for an
> invalid user on your domain. It should be rejected as no such user.
> Then do the same thing with a user at a different domain, and it should
> be rejected as not allowed to relay.
>
> Jeff Jansen
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