qpsmtpd/plugins/check_spamhelo
John Peacock 35f45f208b These changes to trunk were missed when 0.31 was branched.
r588@jpeacock (orig r490):  jpeacock | 2005-07-09 07:03:53 -0400
  r547@jpeacock:  jpeacock | 2005-07-02 07:20:17 -0400
  Replace pithy comment with something more neutral.
  Thanks Gordon Rowell <gordonr@gormand.com.au>
  r548@jpeacock:  jpeacock | 2005-07-02 07:24:21 -0400
  Example patterns for badrcptto plugin - Gordon Rowell <gordonr@gormand.com.au>
  r586@jpeacock:  jpeacock | 2005-07-09 06:54:47 -0400
  Don't use varlog() directly unless you are passing all parameters.
  Don't try to log() anything during loading of logging plugins.
  r587@jpeacock:  jpeacock | 2005-07-09 06:59:57 -0400
  Cannot use new-style hooking with logging plugins (yet).
 
 r590@jpeacock (orig r491):  jpeacock | 2005-07-10 06:56:55 -0400
  r589@jpeacock:  jpeacock | 2005-07-10 06:54:32 -0400
  Track hooks as array and hash.
  Re-revert changes to logging plugins to use new-style hooking.
  logging/adaptive assumed that register() has been called before hook_logging.
 


git-svn-id: https://svn.perl.org/qpsmtpd/branches/0.31@503 958fd67b-6ff1-0310-b445-bb7760255be9
2005-07-14 02:31:01 +00:00

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=head1 NAME
check_spamhelo - Check a HELO message delivered from a connecting host.
=head1 DESCRIPTION
Check a HELO message delivered from a connecting host. Reject any
that appear in the badhelo config -- e.g. yahoo.com and aol.com, which
neither the real Yahoo or the real AOL use, but which spammers use
rather a lot.
=head1 CONFIGURATION
Add domains or hostnames to the F<badhelo> configuration file; one
per line.
=cut
sub hook_helo {
my ($self, $transaction, $host) = @_;
($host = lc $host) or return DECLINED;
for my $bad ($self->qp->config('badhelo')) {
if ($host eq lc $bad) {
$self->log(LOGDEBUG, "Denying HELO from host claiming to be $bad");
return (DENY, "Sorry, I don't believe that you are $host.");
}
}
return DECLINED;
}
# also support EHLO
*hook_ehlo = \&hook_helo;