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I believe there is a method of validating
users by requiring them to pop before smtp? (I might have that backward, I am sure I will
quickly be corrected, lol) The users
have to check incoming email before they send email and therefore the relay is
open only to those who have passwords. I hope this helps. Buck -----Original Message----- So, forgive the sendmail newbie question...
I am attempting to setup a sendmail server that will
receive (and relay) emails from users. These users do not reside on the
same network as my server. In fact, I have no way of knowing what domains
the various users will be on. The only way I have found to stop relaying is
unfortunately reactive instead of proactive. When I see someone using my
server as a relay, I put their domain information in the access file under
REJECT. If not to add insult to injury, as I understand it if
I am to allow my users to log in to send/retrieve messages from anywhere, I
must have the FEATURE (promiscuous_relay) enabled. Since many of the
users are laptops, again there is no telling where they will be logging in
from, so I also need to use the FEATURE (accept_unresolvable_domains).
Both of those options seem to leave the box wide-open. I have heard about
SMTP_AUTH, but haven't read about it yet. Please understand that I am quite new to this.
Actually, I don't understand how one can use the server as a relay without
having a user account. Clearly I have much to learn. Any insights would be greatly appreciated.
Monty
-----Original Message----- -----BEGIN PGP SIGNED MESSAGE----- On 22 Jan 2003 16:56:51 +0100, Peter Boy wrote:
> > Efficiently, you can fight SPAM only where
you have control over a No, I don't know of any such method beyond
blacklisting IPs and It's just that once a server has accepted a message,
the spammer is - -- iD8DBQE+LskB0iMVcrivHFQRAlYeAJ96gSSCA34J5ZeccC7AzCsZe991XACfZtQy
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