As documented, when you want to use an ampersand in a template, you have to double it. Thus "Magic Commands": to stop receiving mail for awhile, click here and send the email: mailto:[log in to unmask]&&body=SET%20IRWOLF-L%20NOMA IL to restart your mail click here and send it: mailto:[log in to unmask]&&body=SET%20IRWOLF-L%20MAIL Frankly I would get rid of the subject, LISTSERV doesn't need it (and then you don't need the ampersand to begin with). Nathan