Thanks for your reply.

My code simply uses the /usr/local/mailuser/bin files that the mailuser program uses to add / remove / list email address's from each mailing list.

I don't think it would be wise to allow access to all these binary files to the "nodbody" user for security reasons.

Is there no way to make a perl script run as the "mailman" user when it is executed by the "nobody" user, in this case the webserver?

- Neil