Note to myself.
Thanks to morr from #netbsd.pl who pointed me to this.
How many times You forgot to notice after installing package what was in MESSAGE file?
How many MESSAGES information You miss while upgreading lots of packages?
Of course You can always revive it by pkg_info -D package_name, but there is simply yet brilliant way to have MESSAGE info in mail.
Just add to /etc/mk.conf
PKGSRC_MESSAGE_RECIPIENTS?=login or mail adress
and when package have something to say in MESSAGE You have it on Your mail :)
Read /usr/pkgsrc/mk/defaults/mk.conf for details.