62 lines
1.8 KiB
Perl
62 lines
1.8 KiB
Perl
# -*- perl -*-
|
|
|
|
=head1 NAME
|
|
|
|
check_badmailfrom - checks the badmailfrom config, with per-line reasons
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
Reads the "badmailfrom" configuration like qmail-smtpd does. From the
|
|
qmail-smtpd docs:
|
|
|
|
"Unacceptable envelope sender addresses. qmail-smtpd will reject every
|
|
recipient address for a message if the envelope sender address is
|
|
listed in badmailfrom. A line in badmailfrom may be of the form
|
|
@host, meaning every address at host."
|
|
|
|
You may optionally include a message after the sender address (leave a space),
|
|
which is used when rejecting the sender.
|
|
|
|
=head1 NOTES
|
|
|
|
According to the SMTP protocol, we can't reject until after the RCPT
|
|
stage, so store it until later.
|
|
|
|
=cut
|
|
|
|
# TODO: add the ability to provide a custom default rejection reason
|
|
|
|
sub hook_mail {
|
|
my ($self, $transaction, $sender, %param) = @_;
|
|
|
|
my @badmailfrom = $self->qp->config("badmailfrom")
|
|
or return (DECLINED);
|
|
|
|
return (DECLINED) unless ($sender->format ne "<>"
|
|
and $sender->host && $sender->user);
|
|
|
|
my $host = lc $sender->host;
|
|
my $from = lc($sender->user) . '@' . $host;
|
|
|
|
for my $config (@badmailfrom) {
|
|
my ($bad, $reason) = $config =~ /^\s*(\S+)(?:\s*(.*))?$/;
|
|
$reason = "sorry, your envelope sender is in my badmailfrom list" unless $reason;
|
|
next unless $bad;
|
|
$bad = lc $bad;
|
|
$self->log(LOGWARN, "Bad badmailfrom config: No \@ sign in $bad") and next unless $bad =~ m/\@/;
|
|
$transaction->notes('badmailfrom', $reason)
|
|
if ($bad eq $from) || (substr($bad,0,1) eq '@' && $bad eq "\@$host");
|
|
}
|
|
return (DECLINED);
|
|
}
|
|
|
|
sub hook_rcpt {
|
|
my ($self, $transaction, $rcpt, %param) = @_;
|
|
my $note = $transaction->notes('badmailfrom');
|
|
if ($note) {
|
|
$self->log(LOGINFO, $note);
|
|
return (DENY, $note);
|
|
}
|
|
return (DECLINED);
|
|
}
|