On 12-May-2009, at 10:11, Adam Katz wrote:
I'd go a step farther ... mail sent outside of the work day (local *and* EST) is more commonly spam.
If you mailserver is only used for a normal work-day company and normal workday emails, this is possibly true.
On my mailserver there is a slight drop-off in legitimate mail on the weekends because most of the mailing lists slow down on the weekends, but since I have users with personal email accounts, their ham actually tends to increase over the weekends.
On my own mail, some of the mailing lists I am on are based in Europe, so their prime messages distribution (mornings in Germany) would fall into your KHOP_LATENIGHT range. OTOH, a 0.25 is unlikely to change a ham to spam.
This might be useful for some mailservers, but I am finding it hard to imagine it ever being really helpful for most servers.
-- I think it would be fun to run a newspaper.
