Kubilay Akyol (Radore Telekom) wrote:
Thanks for your reply.
Adsl users sending spam e-mails using their adsl connections. I can filter
IP addresses from firewall btw, But adsl users have dynamic ip addresses.
Dropping a connection will drop all.
I want to block whole adsl ip range (/24 or more), *unless they are smtp
authenticated*
So that my smtp authenticated users can send e-mail, but other will not be
able to send e-mail to my users. It's something like rbl black listing.
Setup another instance of qmail-smtpd on the submission port (587) that
only accepts email from auth'd users (I believe Tonio's chkuser patch
now supports this) and tell your ADSL clients to use that port. Then
block what ever you want on port 25.
Regards,
Rick
