RE: Help w/Problem, clients server showing as an open relay

Zitat von Joey <Joey@Web56.Net>:

> OK this is my new config.
> What changes should I make to stop the open relay aspect?
> Which line # should go where?
>=20
> Thanks
>=20
> Line 1 smtpd_recipient_restrictions =3D
> Line 2 reject_non_fqdn_sender,
> Line 3 reject_non_fqdn_recipient,
> Line 4 reject_unknown_sender_domain,
> Line 5 check_sender_mx_access hash:/etc/postfix/mx_access,
> Line 6 permit_mynetworks,
> Line 7 check_client_access hash:/etc/postfix/access,

This one is dangerous : What is in the /etc/postfix/access file? Every "O=
K" can
lead to open-relay...

> Line 8 permit_sasl_authenticated,
> Line 9 check_sender_access hash:/etc/postfix/freemail_access,

This one is dangerous : What is in the /etc/postfix/freemail_access file?=
Every
"OK" can lead to open-relay...

> Line 10 reject_unknown_recipient_domain,
> Line 11 check_recipient_mx_access hash:/etc/postfix/mx_access,
> Line 12 reject_unauth_destination,

This is the open-relay stopper. All "OK" results in restrictions previous=
this
one can lead to open-relay.

Read : http://www.mengwong.com/misc/postfix-uce-guide.txt
and http://sbserv.stahl.bau.tu-bs.de/~hildeb/postfix/

Regards

Andreas