g0PEcA231533      524 Fri Jan 25 15:38 <xxxxxxxxxxx
      8BITMIME   (Deferred: 451 Open relay.  Please see
http://orbz.org/?217.9)
                                       <xxxxxxxxxxx>


how to fight with that S...T ?

how can i make my server closed relay - i have LOTS of users using random
dialup modems?

it is possible for me to limit to .pl domain for relay_local_from, but how
to to this.


sorry for offtopic but i'm just getting worried for people who invented
such "Excellent" service like orbz and even more for admins who are using
it (making "gift" for users even if they don't want to).



that's my .mc (it's on linux, but it shouldn't matter):

include(`../m4/cf.m4')
VERSIONID(`linux smtp-only setup')dnl
OSTYPE(linux)
define(`ALIAS_FILE', `/etc/mail/aliases')
define(`STATUS_FILE', `/etc/mail/sendmail.st')
define(`confMAILER_NAME', `serwer-poczty')dnl
define(`confCW_FILE', `/etc/mail/sendmail.cw')
define(`confQUEUE_LA', `50')
define(`confREFUSE_LA', '100')
define(`confMAX_MESSAGE_SIZE', `50000000')
FEATURE(always_add_domain)dnl
FEATURE(masquerade_envelope)dnl
FEATURE(use_cw_file)dnl
FEATURE(virtusertable, hash -o /etc/mail/virtusertable)dnl
FEATURE(genericstable, hash -o /etc/mail/genericstable)dnl
FEATURE(`relay_based_on_MX')dnl
FEATURE(`relay_local_from')dnl
FEATURE(`no_default_msa')dnl
MAILER(local)dnl
MAILER(smtp)dnl




----------------------------------------------------------------------
Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.