On 9/23/20 11:05 PM, Marjorie Roome via Dng wrote:
> 1) a more restrictive postfix main.cf than in the guide, so less spam
> gets through to rspamd: postfix rejected about 37% of emails last
> month, rspamd about 7% with another 5% going to to users spam folders
> and is thus reviewable by them. The main reason for postfix to reject
> an email outright is no SPF.
>

you should (if not already), implement postscreen too.. seen huge drop
in spam with that... drops most spambots, before reaching postfix process.

http://www.postfix.org/POSTSCREEN_README.html