Before starting geomWatch, you should edit its configuration file,
%%PREFIX%%/etc/geomWatch.conf. Then, add the following line to /etc/rc.conf:

geomwatch_enable="YES"

Finally, to start it, run the following command:

%%PREFIX%%/etc/rc.d/geomWatch start

You can also test your SMTP configuration by running the following command:

%%PREFIX%%/sbin/geomWatch -t