/usr/ is in mailutils-guile 1:2.99.98-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/
/usr/bin/guimb
/usr/bin/sieve2scm
/usr/share/
/usr/share/guile/
/usr/share/guile/site/
/usr/share/guile/site/mailutils/
/usr/share/guile/site/mailutils/sieve-core.scm
/usr/share/guile/site/mailutils/guile-procedures.txt
/usr/share/guile/site/mailutils/sieve-modules/
/usr/share/guile/site/mailutils/sieve-modules/numaddr.scm
/usr/share/guile/site/mailutils/sieve-modules/redirect.scm
/usr/share/guile/site/mailutils/sieve-modules/mimeheader.scm
/usr/share/guile/site/mailutils/sieve-modules/reject.scm
/usr/share/guile/site/mailutils/sieve-modules/vacation.scm
/usr/share/guile/site/mailutils/mailutils.scm
/usr/share/doc/
/usr/share/doc/mailutils-guile/
/usr/share/doc/mailutils-guile/examples/
/usr/share/doc/mailutils-guile/examples/reply.scm
/usr/share/doc/mailutils-guile/copyright
/usr/share/doc/mailutils-guile/README.Debian
/usr/share/doc/mailutils-guile/TODO
/usr/share/doc/mailutils-guile/README.gz
/usr/share/doc/mailutils-guile/THANKS
/usr/share/doc/mailutils-guile/NEWS.gz
/usr/share/doc/mailutils-guile/AUTHORS
/usr/share/doc/mailutils-guile/changelog.Debian.gz