Each netfrag.org web does an automatic email notification of recent changes. Users can subscribe / unsubscribe themselves in WebNotify of each TWiki web. The Perl script mailnotify is called by a deamon in regular intervals. The script is sending an automated email to subscribed users in case some topics changed in a web within this interval.

Implementation note: Edit the cron table so that mailnotify is called every 60 minutes. Please consult man crontab of how to modify the table that schedules program execution at certain intervals. Example:

% crontab -e
15,45 * * * * (cd ~twiki/public_html/bin; ./mailnotify)

-- PeterThoeny^? - 21 Apr 2000