/usr/share/sendmail/examples/ is in sendmail-base 8.15.2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/sendmail/examples/amavis/
/usr/share/sendmail/examples/amavis/amavis-doc-1.html
/usr/share/sendmail/examples/amavis/amavis-doc-2.html
/usr/share/sendmail/examples/amavis/amavis-doc-3.html
/usr/share/sendmail/examples/amavis/amavis-doc-4.html
/usr/share/sendmail/examples/amavis/amavis-doc-5.html
/usr/share/sendmail/examples/amavis/amavis-doc-6.html
/usr/share/sendmail/examples/amavis/amavis-doc-7.html
/usr/share/sendmail/examples/amavis/amavis-doc-8.html
/usr/share/sendmail/examples/amavis/amavis-doc.html
/usr/share/sendmail/examples/db/
/usr/share/sendmail/examples/db/access
/usr/share/sendmail/examples/db/aliases
/usr/share/sendmail/examples/db/domaintable
/usr/share/sendmail/examples/db/genericstable
/usr/share/sendmail/examples/db/mailertable
/usr/share/sendmail/examples/db/relay-domains
/usr/share/sendmail/examples/db/sendmail.cM
/usr/share/sendmail/examples/db/userdb
/usr/share/sendmail/examples/db/virtusertable
/usr/share/sendmail/examples/dhcp/
/usr/share/sendmail/examples/dhcp/dhclient-exit-hooks.d/
/usr/share/sendmail/examples/dhcp/dhclient-exit-hooks.d/sendmail
/usr/share/sendmail/examples/dhcp/dhclient-exit-hooks.d/sendmail.md5sum
/usr/share/sendmail/examples/ldap/
/usr/share/sendmail/examples/ldap/sendmail.schema.v1
/usr/share/sendmail/examples/ldap/sendmail.schema.v2
/usr/share/sendmail/examples/logcheck/
/usr/share/sendmail/examples/logcheck/ignore.d.paranoid/
/usr/share/sendmail/examples/logcheck/ignore.d.paranoid/sendmail
/usr/share/sendmail/examples/logcheck/ignore.d.server/
/usr/share/sendmail/examples/logcheck/ignore.d.server/sendmail
/usr/share/sendmail/examples/logcheck/ignore.d.workstation/
/usr/share/sendmail/examples/logcheck/ignore.d.workstation/sendmail
/usr/share/sendmail/examples/logcheck/violations.ignore.d/
/usr/share/sendmail/examples/logcheck/violations.ignore.d/local.sendmail
/usr/share/sendmail/examples/logcheck/violations.ignore.d/logcheck-sendmail
/usr/share/sendmail/examples/milter/
/usr/share/sendmail/examples/milter/Makefile
/usr/share/sendmail/examples/milter/sample.c
/usr/share/sendmail/examples/milter/strl.h
/usr/share/sendmail/examples/network/
/usr/share/sendmail/examples/network/if-down.d/
/usr/share/sendmail/examples/network/if-down.d/sendmail
/usr/share/sendmail/examples/network/if-down.d/sendmail.md5sum
/usr/share/sendmail/examples/network/if-post-down.d/
/usr/share/sendmail/examples/network/if-post-down.d/sendmail
/usr/share/sendmail/examples/network/if-post-down.d/sendmail.md5sum
/usr/share/sendmail/examples/network/if-up.d/
/usr/share/sendmail/examples/network/if-up.d/sendmail
/usr/share/sendmail/examples/network/if-up.d/sendmail.md5sum
/usr/share/sendmail/examples/pam.d/
/usr/share/sendmail/examples/pam.d/smtp
/usr/share/sendmail/examples/pam.d/smtp.md5sum
/usr/share/sendmail/examples/passwd-to-alias
/usr/share/sendmail/examples/ppp/
/usr/share/sendmail/examples/ppp/ip-down.d/
/usr/share/sendmail/examples/ppp/ip-down.d/sendmail
/usr/share/sendmail/examples/ppp/ip-down.d/sendmail.md5sum
/usr/share/sendmail/examples/ppp/ip-up.d/
/usr/share/sendmail/examples/ppp/ip-up.d/sendmail
/usr/share/sendmail/examples/ppp/ip-up.d/sendmail.md5sum
/usr/share/sendmail/examples/resolvconf/
/usr/share/sendmail/examples/resolvconf/update-libc.d/
/usr/share/sendmail/examples/resolvconf/update-libc.d/sendmail
/usr/share/sendmail/examples/sasl/
/usr/share/sendmail/examples/sasl/Sendmail.conf.1
/usr/share/sendmail/examples/sasl/Sendmail.conf.2
/usr/share/sendmail/examples/sasl/sasl.m4
/usr/share/sendmail/examples/sasl/saslpasswd.conf.1
/usr/share/sendmail/examples/sasl/saslpasswd.conf.2
/usr/share/sendmail/examples/tls/
/usr/share/sendmail/examples/tls/starttls.m4