/usr/share/man/man5/etc-email-addresses.5.gz is in exim4-config 4.76-3ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man5/exim4-config_files.5.gz
/usr/share/man/man5/exim4-config_files.5.gz