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+Each %WIKITOOLNAME% web does an automatic email notification of recent changes. Users can subscribe / unsubscribe themselves in %NOTIFYTOPIC% 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)
+
+The above line will call mailnotify at 15 minutes and 45 minutes passed every hour.
+
+-- [[Main/PeterThoeny]] - 21 Apr 2000 <br />