congratulations you must be the 100th person to ask for this facility, but astaro don't listen. Check out the other threads on the subject including mine entitled enhancement request.
I see many posts on that matter. An unsupported way to achieve this is to create a cron job with the following command: /usr/bin/chroot /var/chroot-cffd digest
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mini how-to in order to activate daily spam report every day at 01:00 (default) and 18:30:
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-Connect to astaro using ssh with loginuser account
-grant root permissions by issuing the command 'su' into the system
-issue the command crontab -e
-press insert key
-type 30 18 * * * /usr/bin/chroot /var/chroot-cffd digest
-press esc key
-type :wq (don't forget the : symbol before the wq)
for more details about cron, check crontab man page.
