[cX:~] # pkg_add -r fetchmail

[cX:~] # cat /usr/local/etc/fetchmailrc
poll gX.dX.class proto pop3 user "mailuser" password "123" is root


[cX:~] # chmod 710 /usr/local/etc/fetchmailrc

[cX:~] # cat /etc/rc.conf
...
fetchmail_enable="YES"
fetchmail_polling_interval="20"

[cX:~] # /usr/local/etc/rc.d/fetchmail start

root@cX:~# apt-get install fetchmail

root@cX:~# cat /etc/default/fetchmail
...
START_DAEMON=yes

root@cX:~# cat /etc/fetchmailrc
poll gX.dX.class proto pop3 user "mailuser" password "123" is root

root@cX:~# /etc/init.d/fetchmail restart