Disable greylisting/modify whitelist?

8

I had this same desire myself and I made a small edit to fix it to work as I want.

The change will likely be overwritten the next time the postgrey package is updated, but you can hack it by editing /usr/sbin/postgrey and making the following edits at approximately line 338. You need to add the code shown between the # greylist modifications begin/end lines:

sub smtpd_access_policy($$)
{
    my ($self, $now, $attr) = @_;
    my $db  = $self->{postgrey}{db};
    # This attribute occurs in connections from the policy-test script,
    # not in a regular postfix query connection
    if(defined $attr->{policy_test_time}) { $now = $attr->{policy_test_time} }

    # greylist modifications begin 2014-05-25
    if (lc $attr->{recipient} ne 'user1@mydomain.com' &&
        lc $attr->{recipient} ne 'user2@mydomain.com') {

        $self->mylog_action($attr, 'pass', 'non-targeted greylisting user');
        return 'DUNNO';
    }
    # greylist modifications end 2014-05-25

    # whitelists
    for my $w (@{$self->{postgrey}{whitelist_clients}}) {
        if($attr->{client_name} =~ $w) {
            $self->mylog_action($attr, 'pass', 'client whitelist');

    [...]

In specific, this disables greylisting for everyone except the named users. This means that user1@mydomain.com and user2@mydomain.com will still have their mail greylisted, but everyone else will have their mail delivered immediately without greylisting.

(I first tried to do this with regexes in the whitelist_recipients file, but I could never get the “not” syntax to work, so I gave up and just edited the postgrey script instead.)

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