Hi Peter, yes, the output is a directory /root/Maildir but the path to the Maildir is /home/vpopmail/domains/mydomain.com/user/Maildir/
Roland > Execute as root (on a command line) > > qmail-popup `hostname -f` /home/vpopmail/bin/vchkpw \ > /bin/sh -c "echo \$HOME/Maildir" > > "pretend" you're a user logging in > (means: type 'user <username><enter>pass <password><enter>) > and watch the output. Should be a directory.