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Date: Sun, 10 Mar 2013 12:43:54 +0000
From: Arthur Chance <freebsd@qeng-ho.org>
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To: Steve Rikli <sr@genyosha.net>
Subject: Re: periodic security always sends output mail
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On 03/10/13 03:26, Steve Rikli wrote:
> I would like to configure periodic on my FreeBSD servers to only send
> daily/weekly/monthly/security mails (or logs) when there is something
> "important" to report.
>
> I'm close, but periodic security seems to _always_ send mail, even
> when there is nothing to report.

I suspect the logic is that by always sending a mail, even if it 
contains nothing important, it means that when you don't get mail you 
should check to see what happened. Otherwise an attacker could simply 
prevent periodic security checks to cover up any changes made and you'd 
just think there was nothing important to report.