umuser@ummail:/var/qmail/bin$ ./qmail-showctl
qmail home directory: /var/qmail.
user-ext delimiter: -.
paternalism (in decimal): 2.
silent concurrency limit: 120.
subdirectory split: 23.
user ids: 1002, 1003, 1004, 0, 1005, 1006, 1007, 1008.
group ids: 1002, 1003.
badmailfrom: (Default.) Any MAIL FROM is allowed.
bouncefrom: (Default.) Bounce user name is MAILER-DAEMON.
bouncehost: (Default.) Bounce host name is u-mobile.net.
concurrencylocal: (Default.) Local concurrency is 10.
concurrencyremote: (Default.) Remote concurrency is 20.
databytes: (Default.) SMTP DATA limit is 0 bytes.