On Tue, 11 Jun 2002, [iso-8859-1] S=F6nke Ruempler wrote:
> hi davide, > > there are some mx records that point to 127.0.0.1 (stupid, but i have > noticed one today). > > so if xmail trys to send an email to the server, it sends the mail to > itsself and produces a mail loop. > > it's not an xmail bug, but xmail could check for those stupid mx records. Setting the MX record to 127.0.0.1 is an illegal operation. It breaks the RFC because RFC states that a domain that is mail-enabled ( has MXs ) MUST have a "postmaster" account reachable for such domain. An this won't be true if the MX is set to 127.0.0.1 This method is used to avoid traffic for domains that does not have emails, because the RFC dictates that if an MX lookup fails the A record must be tried. The simple solution is to have domain name that does not have A records, in this way even the A record method will fail and no traffic will be generated inside the domain network. - Davide - 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]
