Thanks for you help; I did try this script today, but I did get the message 'No username/emailaddress' found in ...
After verifying the user/mail-field (in default.cfg) I tryed to change the path to default.db (which is requested in mailer.cgi). It didn't help! I don't get why it have to know the default.db file, doesn't it send email to all adresses from the .pass file? Because that's what I want!

Jan