No problem at all....
I've been having trouble with Mail_mime also and happen to come accross your post by trying to find a resolution to mine.
Maybe you can help me test something. I think the Bcc is broken with this method.
can you change your line:
$mail =& Mail::factory('mail');
to
$params['host'] = "192.168.186.150";
$params['port'] = "25";
$mail=&Mail::factory('smtp',$params);
you would obviously change the "host" to one you control.
and change:
$hdrs = array(
'From' => 'webmaster@mydomain.com',
'Subject' => 'Test message'
);
to
$hdrs = array(
'From' => 'webmaster@mydomain.com',
'Bcc' => 'webmaster@something.com',
'Subject' => 'Test message'
);
If you can test that, I would really appreciate it...