bulkmailer syntaxis??

Hi, For my customers I would like to use bulk_mailer for sending a weekly newsletter (I'm not a spammer). Bulk_mailer works fine, but I seem not to be able to change the reply address. I tried the +reply-from option, but I get an error "bad usage" In aliases, my syntaxis is newsletter: "|usr/bin/bulkmailer + reply-to user@domainname /var/lib/majordomo/lists/newsletter" Does anyone know where the error is coming from?? Sjoerd