I manage email for a couple of hundred domains, so a fair bit of stuff
that arrives to my inbox are spam complaints (they're supposed to open
tickets or use the support mailbox but... users). I flag anything over
5.0 as spam, but it still comes to my inbox. Anything over 8.0 goes to
the bit bucket. Our support inbox deletes anything over 10.0. Stuff that
scores over 20 arrives on a regular basis but 10 seems to be a decent
threshold for "absolute crap".
I should also mention that we refuse to send anything that scores over
5.0. This has proved useful both in limiting damage from unprotected
contact forms and ... um ... "overzealous" customers.
On 2021-08-17 12:03, David Bürgin wrote:
In your experience, what is a good ‘certain spam’ threshold? By that I
mean the score above which messages are virtually always spam, no false
positives.
The default threshold for spam is 5.0, which works well for me. Only
very rarely a ham message scores above that and lands in my Junk folder.
Would 10.0 be a good ‘certain spam’ threshold? 15.0? I could then reject
such messages at the SMTP layer, without having to worry about rejecting
legitimate messages.
Thank you!
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