blocking unauthenticated nonuser mail to user mail through my server

M

Mangas23

Verified User
Joined
Aug 31, 2006
Messages
104
Hello,
I want block nonuser send mail to local user mail through my server, if it's not authentificated.
ex:
in outlook (or other) you configure mail account with email [email protected] (not user domain) with smtp my.server.com and no smtp authentification, you can send mail to local domain (to external mail, he is blocked).

Can I deny this or not ? (I use exim ;) )
 
You've lost me completely, and no one else has replied either.

If you block a nonuser from sending mail to a user local to your system, then the server can't receive email from the outside world.

Do you mean something else? If so, please explain more clearly.

Thanks.

Jeff
 
Hello, i don't want block incoming email from outside world to my local user.
I want block sending mail to my local user by non user if this non user use my server to send it directly.
exemple:
you use your smtp server to send mail to my user (you are connected to your server, your server receive your mail and send to my, and my server delivery to my local user) -> ok
you use my smtp server to send mail to my user (you are connected directly to my server, send your mail to my server and it delivery it to my local user) -> block or accept only if you are authenticated (smtp authentification)

P.S: sorry for my english

In french:
Lorsque que quelqu’un configure sont client mail comme ceci :

Tu met une adresse mail existante, mais qui n’est pas chez hébergé chez nous, que tu met ton pop, toujours non hébergé chez nous, et que tu met notre SMTP (mail.stbarthfwi.net) en port 25 ou 587. Tu peux envoyer des mail, sans avoir configuré l’identification SMTP, aux utilisateurs hébergé chez nous (vers l’extérieur c’est impossible évidemment pour éviter les open relay).

Je voulais donc savoir si il y avait un moyen de bloquer les envoie, par notre serveur de mail, non hébergé chez nous, en les autorisant seulement avec l’identification SMTP, sans pour autant bloquer les mails venant de l’extérieur ?
 
How would your server be expected to know if I'm sending email directly or only through my mailserver? This is the sort of problem that SPF was designed to help rectify, but the problem is it cannot be a standard you can block on it until everyone is using it or you'll block a huge percentage of the mailservers in the world.

Jeff
 
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