I installed Spam Blocker lite on our Untangle box today.
Whilst it is blocking some spam there are a huge amount of obvious spam emails that are getting spam scores of 0, 0.2 and other low ratings.
Subject: Triple your account balance
Spam Score: 0
Subject: Work Offer Inside
Spam Score: 0.5
Subject: Alternate Methods Of Power
Spam Score: 0.6
Subject: Employment You've Been Searching!
Spam Score: 1.6
I'm confused as to why these obvious spam emails are getting such low scores.
SMTP scanning strength is set to Medium 4.3. Drop super spam is ticked. Super spam threshold is 20.
We use GFI Mail Essentials on our Exchange server so fortunately this is still taking care of these obvious spam emails. I was hoping that I could stop using GFI though down the line.
Our configuration is as follows:
Under Network - External Interface - The primary DNS server is our ISP router address.