On Wed, 2011-11-23 at 14:55 -0300, Christian Grunfeld wrote:

> For this we need a modified version of SA autowhitelist not based on
> scores but on trusted or answered emails !
> 
This can work well, BUT:

- you need to maintain a database containing every address
  you ever received mail from and have sent mail to. All addresses
  must be recorded as you receive mail from them and updated to record
  when you send mail to them.  You could delete addresses that you
  haven't replied to for, say, a month but that is about all you can
  delete. 

- marking first-time messages as spam won't work for a business and 
  probably won't work for a private mail user.

- this doesn't work at all for mailing lists that get spammed from time
  to time, especially if the spam comes from an online forum (hint:
  the same sender address tends to be used for all forum posters).

How do I know? I run a mail archiving system which provides exactly this
service (automatic whitelisting of addresses I've sent mail to) to my
copy of SA via a plug-in. The points I listed reflect my experience.


Martin


Reply via email to