LOCKSPOOL(1) General Commands Manual LOCKSPOOL(1) (NAME) lockspool - (SYNOPSIS) lockspool [username] (DESCRIPTION) lockspool . lockspool username.lock stdin SIGINT, SIGTERM, SIGHUP . ( ) . lockspool "1" (stdout) "0" (stderr) . lockspool ( ). ( mail(1)) lockspool . lockspool . (FILES) /var/mail/username.lock (EXIT STATUS) lockspool 0 1 . (SEE ALSO) mail(1), mail.local(8), smtpd(8) (HISTORY) lockspool OpenBSD 2.4 . Linux 6.12.111+deb13-amd64 January 25, 2019 Linux 6.12.111+deb13-amd64