Hi John,
Can someone confirm the following:
1. Would this be a correct filename .qmail-listmail-bounce@mydomain.com (if my bounce email address is listmail-bounce@mydomain.com)
"dot-qmail" files are set up in your virtualhost's mail folder, such as /var/qmail/mailnames/example.com
To create the address listmail-bounce@example.com you would browse to the above folder and enter a file ".qmail-listmail-bounce"
2. What sort of file the .qmail-listmail-bounce@mydomain.com should be.
A simple text file. If you are doing this from an SSH shell (admin access is probably required) you could use echo, ie:
echo "|/path/to/bounce.cgi" > /var/qmail/mailnames/example.com/.qmail-bounce
3. What HOME directory is. Is in the root of the site, the server, the directory holding the ListMail installation?
What we're entering is the full path to bounce.cgi. If the alias doesn't work as recommended, you might try preceding it with Perl:
echo "|/usr/bin/perl /path/to/bounce.cgi" > /var/qmail/mailnames/example.com/.qmail-bounce
Another thing to check is that all folders leading to bounce.cgi are CHMOD to 755 to be readable by the qmail system user.
Please let me know if I can be of further assistance.
Regards