> Hi group,
Hi Frederik! >=20 > I've been working for years with pop3-domain-fetch -> MTA -> smtp as > mail-delivery mechanics. > But now I've a 'basic' question... > Mail is delivered trough smtp (port 25) in a MTA-MTA=20 > environnement, right? Yep. Absolutely correct. > If this is right how can relaying be disabled? An MTA usually accept mails only destined to the local domains, or it = can accept mails to any domain IF the user has authenticated in smtp OR = if he has checked mail through pop3 (and authenticated through it) OR = if the user is within specified ip subnets (normally the internal = LAN+RAS+VPN+etc). > In a MTA-MTA situation mail can come from everywhere... This=20 > tought strugles > me! In the old internet days until 1995 all mail servers usually accepted = mail to and from everyone. Then spam was "invented" and the rules were = changed. - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
