On Wed, 27 Oct 2004 15:51:19 -0400 (EDT), Dave Lester <dlester@xxxxxxxxxxx> wrote: > Yang Xiao said: > > > > Hello, > > I'm trying to prevent anyone from spoofing incoming mail as internal > > users. Example, my domain is mydomain.com > > I don't want to anyone to connection to my mail gateway and send > > emails as user@xxxxxxxxxxxx from the outside. > > > > I thought this can be done by access table and it's working. but the > > problem now is that it's rejecting local mail that it's trying to > > forward to the mailhost as well, how can I fix this? > > > > #access table > > # Check the /usr/share/doc/sendmail/README.cf file for a description > > # of the format of this file. (search for access_db in that file) > > # The /usr/share/doc/sendmail/README.cf is part of the sendmail-doc > > # package. > > # > > # by default we allow relaying from localhost... > > 127.0.0.1 OK > > localhost OK > > From:localhost OK > > To:localhost OK > > From:mydomain.com ERROR:"550 Everything that has a > > beginning, has an end." > > > > > > Many thanks, > > > > Yang > > > > -- > > fedora-list mailing list > > fedora-list@xxxxxxxxxx > > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > > > > Have you read this: > > http://www.sendmail.org/m4/anti_spam.html#access_db > > If you are refusing to relay your own domain that is why you are rejecting > local mail, you can try putting in a rule that allows whatever network you > are using. > > like this > > 192.168.1.0 OK > > -- > ======================= > Dave Lester > dlester@xxxxxxxxxxx > http://www.davenet.org > ======================= > Yes, but it's local email generated by cron jobs that was intended for user root, and root is aliased to postmaster@xxxxxxxxxxxxx Also, when I try to send an email locally from the machine to user@xxxxxxxxxxxx, it also gets rejected. However, sending it from a different machine will not. So adding the network IP won't fix this problem. Yang
